Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
26-04-2024 06:20
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 (314) 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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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\1BCA.tmp"C:\ProgramData\1BCA.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\1BCA.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
MD5174c9117892ffe3c366809dfce76bc11
SHA118b7526e6adc46e1ab3a6c46bc2c4507e07797e9
SHA2567ca910b387890cecf7bfc979bbf27b441af4ec2d40c5c248428fa3f913c78adf
SHA512d8698ea5376e8808cb7af019d68972536caafe45c35cc92610e1de68a68f6d0705ebb0909f391bcc87b9799e793aa292461cf2a65b34c0dd0d0a92104165164d
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Filesize
434B
MD5b4709a56b9d7f431da172316cda720be
SHA1d2132f7129a7003ec4c0392f0f08cd24ea353da6
SHA256192d1e6078570865531e8a4c9840a483c4a2ac35fe468107284991f6da813191
SHA512e390d51e95db5e56c666a2895dc87dab41d97e7ce3c0df1f2466abf14a651167232521ab5f52746d16bab0ef14e6c0ee9dcfe29894604d695b0d064909378227
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Filesize
194KB
MD5fcb783cf0a367e56f800896a1b7d634a
SHA12183b9c3231df0ab2c3588115a8f6119b7ca63e3
SHA2562261659485161e4d318b411d1caf3d05e860c23b53f9aa6715e41bc8909b4c87
SHA5129b9d34954f80a51e4b6258f2a8af051976d36d8d8824d68d773caa297cde6e915d515408c29eb6e63a83ce55fe1c2db3907eb108b0617d6805f3da5bf30a2873
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Filesize
129B
MD500cf885f30dacfba83ece115d402af3f
SHA1c2dda5a172a7ceae9c39e5000a8e21ea864e7307
SHA256b985dd1c32899085a7b78c02fd5af455d2d166f379d05ffad74afad32faa56c8
SHA51221b77e0a78f1afc615241fa2f0c9361d85ddb554fb0b782cad031730669f6d6c92b12177da2a8d63b1bf970ef1c2b003dbcf08c57f8eb93d28e963f1b8a19d44
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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
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
256KB