Analysis
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max time kernel
85s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
16-04-2024 12:30
Static task
static1
Behavioral task
behavioral1
Sample
c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe
Resource
win10v2004-20240412-en
General
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Target
c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe
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Size
270KB
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MD5
0922b67facd189b672670001d2910eca
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SHA1
140f950dc6d83d80185d75136d5ce72821b83f8e
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SHA256
c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25
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SHA512
ed94a848e3a42674054c5c24b7c8bc775ee8e695331a9348b15247b3983ff0cceb3a088329757b8a52398cd850fda2ef7199086479fa4ea1c4e07a916d46536b
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SSDEEP
6144:XdohG1el4VQg/U+Dgx3bMAVVzddi6jWGPxF:XdoJlK53DgZMSVFjW0x
Malware Config
Extracted
C:\Users\Admin\Data breach warning.txt
https://qtox.github.io
http://raworldw32b2qxevn3gp63pvibgixr4v75z62etlptg3u3pmajwra4ad.onion
http://161.35.200.18
https://gofile.io/d/ufuFye
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (159) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\O: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\A: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\H: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\X: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\W: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\E: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\P: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\K: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\T: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\U: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\B: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\N: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\M: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\I: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\S: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\Y: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\G: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\J: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\L: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\Z: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\V: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\Q: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe File opened (read-only) \??\R: c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Help\Finish.exe c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1160 vssadmin.exe 4992 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2372 c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe 2372 c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 5032 vssvc.exe Token: SeRestorePrivilege 5032 vssvc.exe Token: SeAuditPrivilege 5032 vssvc.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2372 wrote to memory of 2928 2372 c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe 87 PID 2372 wrote to memory of 2928 2372 c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe 87 PID 2928 wrote to memory of 1160 2928 cmd.exe 91 PID 2928 wrote to memory of 1160 2928 cmd.exe 91 PID 2372 wrote to memory of 548 2372 c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe 93 PID 2372 wrote to memory of 548 2372 c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe 93 PID 548 wrote to memory of 4992 548 cmd.exe 95 PID 548 wrote to memory of 4992 548 cmd.exe 95 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe"C:\Users\Admin\AppData\Local\Temp\c1a1809621329fce9021f0b891e4594a702184daef71bc19adf438389ebaec25.exe"1⤵
- Checks computer location settings
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:2928 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1160
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:4992
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5032
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5e7264a4c331eac851fa75438919e0531
SHA138f6dc2b0c5e86d38c2a9bd7f5aaf4447be97a61
SHA25607ab218d5c865cb4fe78353340ab923e24a1f2881ec7206520651c5246b1a492
SHA512f8aca867b199f5494dbc6919423788533b4b55f249ac1ab2707c38788212b585eb39234be74d1f2b039d00ee096b5d2036c1066e19e4fa304b048ffb61ca1edb