Analysis
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max time kernel
172s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
14-03-2024 08:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe
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Size
80KB
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MD5
13616e15e6e161bf2c187d4ccff0a74a
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SHA1
5dc358621f84c54e25a5127e6c75873b302878c0
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SHA256
c16db5977b4fc0999e81d73641a520b05384431102acc29a3976b47bbad97751
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SHA512
e65ec8a0258f0046801e84785355c379aaf375b05bf0759bb49d8a89fc289a1ff446d978842f03de96aa76eb07484c92bcf9e7118665f2c2ffc60384c078e41e
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SSDEEP
1536:nc2hl9N/IolKfGsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG24m:nc2N/4usrQLOJgY8Zp8LHD4XWaNH71dc
Malware Config
Extracted
C:\Recovery\readme_for_unlock.txt
https://gdpr-info.eu/
http://s4xpejatghnopeieoqvjqsnfl576jekizgmw52s7ydth6wgyi2wh2gid.onion
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 (1447) 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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\readme_for_unlock.txt 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe -
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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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) \??\M: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\R: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\U: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\G: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\H: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\X: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\V: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\W: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\E: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\O: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\J: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\L: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\B: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\Q: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\T: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\K: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\Z: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\N: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\Y: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\I: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\P: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\A: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened (read-only) \??\S: 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 436 404 WerFault.exe 86 -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3348 vssadmin.exe -
NTFS ADS 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Temp\╠Ĥ우ĢC:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\ContentManagementSDK\Creatives\310091\1710404878.~tmp.crYptA3 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe File opened for modification C:\Users\Admin\AppData\Local\Temp\ఀğ傘ĤC:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\ContentManagementSDK\Creatives\310091\imprbeacons.dat.crYptA3 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 2620 vssvc.exe Token: SeRestorePrivilege 2620 vssvc.exe Token: SeAuditPrivilege 2620 vssvc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 404 wrote to memory of 4276 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 93 PID 404 wrote to memory of 4276 404 2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe 93 PID 4276 wrote to memory of 3348 4276 cmd.exe 95 PID 4276 wrote to memory of 3348 4276 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\2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-14_13616e15e6e161bf2c187d4ccff0a74a_babuk_destroyer.exe"1⤵
- Checks computer location settings
- Drops startup file
- Enumerates connected drives
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:4276 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:3348
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 10442⤵
- Program crash
PID:436
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2620
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 404 -ip 4041⤵PID:4264
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5405c5458425f5bdb2cc6ca2351ba883f
SHA14f8890c8ee0ea19a7c8986073d78e6dbf396b59c
SHA256fc9dddc880f6b0dd15957f82df4468ae63dbaf67542372357ba7a992ff426a46
SHA51221c5539122414dca1dafe6ad65122c5296514edbe528414e4871e04eaa9390c890dbaa6fb3bb794455da095fc24390c708527c2eb81a230b551d0527bb419402