Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
26-04-2024 06:54
General
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Target
Document.doc.scr
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Size
194KB
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MD5
6fd558cf3add096970e15d1e62ca1957
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SHA1
78e95fabcfe8ef7bb6419f8456deccc3d5fa4c23
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SHA256
41e187191625d749b89a11bc04fc0b2a3b9bd638035d05b39365c47ab36d1898
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SHA512
fac7efe9b76f9b6a917f8751f5be64ad8e067e5404fe05f3e9d7781ea3661a06c0baaac676a6023eb4a0b7f01bc2bb2d64d572f85aec8ad8de35cc7f106e1fdc
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SSDEEP
3072:n6glyuxE4GsUPnliByocWepMhJL4BFkTGX:n6gDBGpvEByocWeyhJL4UK
Malware Config
Signatures
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Renames multiple (355) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies Control Panel 2 IoCs
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Modifies registry class 5 IoCs
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Suspicious behavior: EnumeratesProcesses 14 IoCs
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Suspicious behavior: RenamesItself 26 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Document.doc.scr"C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\ProgramData\43C4.tmp"C:\ProgramData\43C4.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\43C4.tmp >> NUL3⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD583010fdc880a1dc57dd4ba17ee57ae99
SHA17d114fcd37e3fff29dfdeb2b0ff19f209bfe93cd
SHA2562d06d126162e6a3ae7aae780b02b30aae2ee4b968db9656bb9631fab009c363a
SHA51277064d7ff90b27c99066ec76498615c05a75c8ce75b54ae7547f8cf411fd9fda7304a7f64159863a80e6a739448758bab3601bfbc9bfdb6396531e0998985a34
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Filesize
434B
MD5b4709a56b9d7f431da172316cda720be
SHA1d2132f7129a7003ec4c0392f0f08cd24ea353da6
SHA256192d1e6078570865531e8a4c9840a483c4a2ac35fe468107284991f6da813191
SHA512e390d51e95db5e56c666a2895dc87dab41d97e7ce3c0df1f2466abf14a651167232521ab5f52746d16bab0ef14e6c0ee9dcfe29894604d695b0d064909378227
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Filesize
194KB
MD5ef0f13b903f00ae25c47533aa6e00ca6
SHA14f9b39f5be2210138165a4939c44812731e9e655
SHA256c53060ae37be8a4633513f30c176366c677eb0f72a7ae0530ee1d9e1d66c8395
SHA512dea6c1f29d52e889888817fddcf9b0ee8a409134be00af36bc71cf7206f01d941e74f0fc98e94c0620f44438ef3cb85c6d7d30027769b1ec0201e6ba678eccc4
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Filesize
129B
MD5d55bf0642872c22b0e0e38e25a5826c7
SHA139c2645e54a28ab8ae0c1cd29f333bd3b128140f
SHA256679f371dbc80bd389bf1f2c1b7d130136d4a51e6ae66d3acf2d555f9929eb330
SHA512517cf332077e1324d779cd1be69e4ef2832c50869c4cf4df926a4befb678c54b598fed84385503b17eb8d6c5d852c343b7d8f69e0407ae8e99c9af2da8e5d1b6
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
256KB
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Filesize
256KB
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Filesize
4KB
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Filesize
256KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB