Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240220-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
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 (318) 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\1FA1.tmp"C:\ProgramData\1FA1.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\1FA1.tmp >> NUL3⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1481⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD5cdb935c607a1ffa2c8bbf4286f66bd49
SHA1b195cd33dc5f1c6d65f10fa33cee2fa699490b3a
SHA256ca8cd8bff69ff30efd7bbca0e6d70584834b6115a87e0c204c84f35d89934bde
SHA5128dd7a6552964408f74880e4788109ddd195e772f023900fa15fb382483fbb454b7aa512631afe2159152a49c475961801663cd341c9a41e47c91ba714fadaf63
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Filesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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Filesize
194KB
MD537f33baa057ac5c5f3a1d62653be79f0
SHA1dff71350e198f0d1f9d8ad6b78b8d1984bb7f9e6
SHA2569c03e82d8e1905b420a881b942e37a06b43263a6a18f13bf2c20e71116797b5d
SHA5120b1382e3fccd3986c30185f7839d848dbc58ce5a2d7f257192ec7f2ff25794748789383dff85eaec3d9ecaf39a670206de9847c2a8352335dbbb3a47649fc5f0
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Filesize
129B
MD5b36a8718de833d8033c0831f0cd01efc
SHA1b96dd643c42d08b67fae1a9f057ab74772a5eb79
SHA256dc48ef4891f9dedb94e17ecc4b8e5c8b96f07f4c2f8a3293ae8ac17c983fd79c
SHA51230b5e0dbd3bd34e88138bea5aaf3f2c947254d86e8d1a450bc42638e461645528363b79b4470fb649876ccf0cbcec3b82711c3a707cdca7ae54bd7e4adc8817b
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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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
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Filesize
256KB