Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\delete_original_files.bat
Malicious functions
Reads files which store third party applications passwords
- %HOMEPATH%\desktop\3.jpeg
- %HOMEPATH%\desktop\2.jpeg
- %HOMEPATH%\desktop\508softwareandos.doc
- %HOMEPATH%\desktop\advice_process.htm
- %HOMEPATH%\desktop\alert.htm
- %HOMEPATH%\desktop\alert.html
- %HOMEPATH%\desktop\contosoroot_1.cer
- %HOMEPATH%\desktop\correct.avi
- %HOMEPATH%\desktop\delete.avi
- %HOMEPATH%\desktop\dialmap.bmp
- %HOMEPATH%\desktop\february_catalogue__2015.doc
- %HOMEPATH%\desktop\fi51.doc
- %HOMEPATH%\desktop\iisstart.html
- %HOMEPATH%\desktop\issi2013_template_for_posters.docx
- %HOMEPATH%\desktop\ituneshelpunavailable.htm
- %HOMEPATH%\desktop\ituneshelpunavailable.html
- %HOMEPATH%\desktop\lisp_success.doc
- %HOMEPATH%\desktop\sdksampleunprivdeveloper.cer
- %HOMEPATH%\desktop\split.avi
- %HOMEPATH%\desktop\testcertificate.cer
- %HOMEPATH%\desktop\testee.cer
- %HOMEPATH%\desktop\thlps_keeper_mayer_1965.docx
- %HOMEPATH%\desktop\tree_view.html
- %HOMEPATH%\desktop\trivial-merge.html
- %HOMEPATH%\desktop\weeklysheet1215.doc
Modifies file system
Creates the following files
- %TEMP%\_mei37602\vcruntime140.dll
- %TEMP%\_mei37602\_bz2.pyd
- %TEMP%\_mei37602\_decimal.pyd
- %TEMP%\_mei37602\_hashlib.pyd
- %TEMP%\_mei37602\_lzma.pyd
- %TEMP%\_mei37602\_socket.pyd
- %TEMP%\_mei37602\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-fibers-l1-1-1.dll
- %TEMP%\_mei37602\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-kernel32-legacy-l1-1-1.dll
- %TEMP%\_mei37602\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei37602\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-sysinfo-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei37602\base_library.zip
- %TEMP%\_mei37602\libcrypto-1_1.dll
- %TEMP%\_mei37602\python310.dll
- %TEMP%\_mei37602\select.pyd
- %TEMP%\_mei37602\ucrtbase.dll
- %TEMP%\_mei37602\unicodedata.pyd
- %HOMEPATH%\desktop\2.jpeg.enc
- %HOMEPATH%\desktop\3.jpeg.enc
- %HOMEPATH%\desktop\508softwareandos.doc.enc
- %HOMEPATH%\desktop\advice_process.htm.enc
- %HOMEPATH%\desktop\alert.htm.enc
- %HOMEPATH%\desktop\google chrome.lnk.enc
- %HOMEPATH%\desktop\telegram.lnk.enc
- %HOMEPATH%\desktop\encrypted_files_info.json
- %HOMEPATH%\desktop\重要说明.txt
Deletes following files that it created itself
- %TEMP%\_mei37602\api-ms-win-core-console-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-datetime-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-debug-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-errorhandling-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-fibers-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-fibers-l1-1-1.dll
- %TEMP%\_mei37602\api-ms-win-core-file-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-file-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-file-l2-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-handle-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-heap-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-interlocked-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-kernel32-legacy-l1-1-1.dll
- %TEMP%\_mei37602\api-ms-win-core-libraryloader-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-localization-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-memory-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-namedpipe-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-processenvironment-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-processthreads-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-processthreads-l1-1-1.dll
- %TEMP%\_mei37602\api-ms-win-core-profile-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-rtlsupport-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-string-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-synch-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-synch-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-sysinfo-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-sysinfo-l1-2-0.dll
- %TEMP%\_mei37602\api-ms-win-core-timezone-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-core-util-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-conio-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-convert-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-environment-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-filesystem-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-heap-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-locale-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-math-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-process-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-runtime-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-stdio-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-string-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-time-l1-1-0.dll
- %TEMP%\_mei37602\api-ms-win-crt-utility-l1-1-0.dll
- %TEMP%\_mei37602\base_library.zip
- %TEMP%\_mei37602\libcrypto-1_1.dll
- %TEMP%\_mei37602\python310.dll
- %TEMP%\_mei37602\select.pyd
- %TEMP%\_mei37602\ucrtbase.dll
- %TEMP%\_mei37602\unicodedata.pyd
- %TEMP%\_mei37602\vcruntime140.dll
- %TEMP%\_mei37602\_bz2.pyd
- %TEMP%\_mei37602\_decimal.pyd
- %TEMP%\_mei37602\_hashlib.pyd
- %TEMP%\_mei37602\_lzma.pyd
- %TEMP%\_mei37602\_socket.pyd
Modifies the following files
- %LOCALAPPDATA%\microsoft\windows\explorer\thumbcache_idx.db
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Restarts the analyzed sample
