Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
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submitted
27-04-2024 01:14
General
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Target
Document.doc.scr
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Size
194KB
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MD5
50e5dec57451005668704281688ca55d
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SHA1
67dd4ac7eb8c193b39149b34d3a0d5bc21c3f200
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SHA256
062683257386c9e41a1cd1493f029d817445c37f7c65386d54122fa466419ce1
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SHA512
29ca4a44795c71d3e2b4e3417355ebb93765157d464d6d5a3fe6774056d934d57081c72001fb29e47982da11e5a5ccfdbcc958d05a11fb49bd8bf84e6d0c61ad
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SSDEEP
3072:66glyuxE4GsUPnliByocWepRGbVZqid91h2ys+tU:66gDBGpvEByocWeubV4inP9B
Malware Config
Signatures
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Renames multiple (324) 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\2913.tmp"C:\ProgramData\2913.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\2913.tmp >> NUL3⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\$Recycle.Bin\S-1-5-21-2248906074-2862704502-246302768-1000\AAAAAAAAAAAFilesize
129B
MD5ed5c0c63d3024e2394a39ab213b9d596
SHA13dede4a9f66fddf4b3d2083fa4ae7058510b5d1f
SHA256c493798be98e38a9ec99b40d990419cfa77835b82abe1dc9d7b2b13e3ac3c8d5
SHA512ffab317a9d48b244f7900dc33db1d8591c4aa4213978d9076295979c1ca3fede84f570979ab74b1cffee8b7ba480616f14b2435e766f7cfc7891de1d17ae3cc6
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C:\Qs2QSInbk.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD5e1068b7f3a9dfa3fe530da5f7f54d40a
SHA1c5699d8fcf513a3aa69e2c0d5f460bbb248998a2
SHA256503cdc1a51e685bb8a3641220786759456ad5d2ce8b34b93554084261d8a6263
SHA51287ae59070ebd7ec653c216a2f438b95703d94a6f142c49254eb83ea7cb439b5528d84abc029e26bcf483a5346d7b8e4cc32e2d1031a4f2410d050326f90324c2
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F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\HHHHHHHHHHHFilesize
129B
MD5be6acf294a542bac5faa2e4d90f4e977
SHA1ee78e2a37aa1179febaa8d5d28e12abd6d5fd272
SHA2567a77fbfede7b264ee0608b3156c08f1f8b53ebd825028560b5e42105b2474fa0
SHA51256bd5dcfaf903a13a104f21b035524598fb8337ef57f134f206c8d42d0c2d1f5d2b61e28d4f3f8c34f347b72aca5c1238f98572af8e41293912ec5b738d30554
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\ProgramData\2913.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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memory/1888-0-0x0000000000DB0000-0x0000000000DF0000-memory.dmpFilesize
256KB
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memory/2008-854-0x000000007EF20000-0x000000007EF21000-memory.dmpFilesize
4KB
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memory/2008-853-0x000000007EF80000-0x000000007EF81000-memory.dmpFilesize
4KB
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memory/2008-852-0x00000000020F0000-0x0000000002130000-memory.dmpFilesize
256KB
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memory/2008-850-0x000000007EFA0000-0x000000007EFA1000-memory.dmpFilesize
4KB
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memory/2008-851-0x00000000020F0000-0x0000000002130000-memory.dmpFilesize
256KB
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memory/2008-884-0x000000007EF60000-0x000000007EF61000-memory.dmpFilesize
4KB
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memory/2008-883-0x000000007EF40000-0x000000007EF41000-memory.dmpFilesize
4KB