Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
25-04-2024 14:22
General
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Target
Document.doc.scr
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Size
194KB
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MD5
b7b4c97132d03eead1fa9a9352dee6c2
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SHA1
c9eb1bdc528076fa9c91668addf0723294ac1575
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SHA256
1ecea8b0bc92378bf2bdd1c14ae1628c573569419b91cc34504d2c3f8bb9f8b2
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SHA512
cb0023bc6783a94a27d2d4a67c214e8657fd334d1a94a7dba51277363dee2a67e7ecc5fc0788cead1c4e0e2dc7d9aa758203f89dce162184869d20a44d171903
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SSDEEP
3072:v6glyuxE4GsUPnliByocWepXKD0/9Wy1Og/ZK99r:v6gDBGpvEByocWehKD0/EWfg3
Malware Config
Signatures
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Renames multiple (326) 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\2A3C.tmp"C:\ProgramData\2A3C.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\2A3C.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-1-5-21-3452737119-3959686427-228443150-1000\desktop.iniFilesize
129B
MD5364c7540e2ee9fab021493c3c2c0e383
SHA159d5f2f349f444e38be31563ff2526d79a021a4c
SHA25681dee3d3b21dd4969be4ab363186c1c1cdf3512d44a6dffbbb8fe26caa929334
SHA51241e00d9431baeece06e4d625491b2685732bd3defdca43548c416ec96ae55b2720873a8ad9a33699a530e7276b6865f56c6d73c26959826233ca55145b44d856
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD5319b72da63e559e163d5565df19c2ab5
SHA1e5479bdaa0a8a1aea905033407d0b344bfe9d4e6
SHA2563db8b39485f80ce5b7d33d54fca35436b3e8e870a45e7c7d9830caef481351ae
SHA51201c984fc46e2dc2f0ce897e9387d755e2b39428d7cbf100867d2793667b04a5213548d93fec506ebfcd1fa240963f721c919de324816a6bf168617bba6695499
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C:\te8ZzuVLn.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\DDDDDDDDDDDFilesize
129B
MD5fe57e32ee53af73d4d890ae73d428d24
SHA1e504043bdd37de89f7f6abd3399a86ecf63a3aca
SHA256c1f49b627d333bb6001b5ef84a3506ab7cc91e1e002c7836a785cc96a498aea1
SHA512b36797ff80d593aefaae40cc240f35db94d853b829967bac8bc75a28c97f2dcf6e13dd5b852e094058581de40f7272406f34bc35cc5b40e8a84b050a508fe212
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\ProgramData\2A3C.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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memory/1948-0-0x0000000000510000-0x0000000000550000-memory.dmpFilesize
256KB
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memory/2016-844-0x0000000000400000-0x0000000000407000-memory.dmpFilesize
28KB
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memory/2016-845-0x000000007EFA0000-0x000000007EFA1000-memory.dmpFilesize
4KB
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memory/2016-848-0x0000000002400000-0x0000000002440000-memory.dmpFilesize
256KB
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memory/2016-851-0x000000007EF80000-0x000000007EF81000-memory.dmpFilesize
4KB
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memory/2016-852-0x000000007EF20000-0x000000007EF21000-memory.dmpFilesize
4KB
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memory/2016-877-0x000000007EF40000-0x000000007EF41000-memory.dmpFilesize
4KB
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memory/2016-878-0x000000007EF60000-0x000000007EF61000-memory.dmpFilesize
4KB