babuk | 5339981168dfcefb874dc7e82563fa7aca047f17b1184ae8db9336a2335473a9

Analysis

max time kernel
191s
max time network
286s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 05:59

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General

Target

exe.ransomware.babuk/03/11/0B/03110BAA5AAD9D01610293F2B8CD21B44CC7EFA0A465E677D6B3F92510A4B1D7/03110.exe
Size

79KB
MD5

1dbd0abfdd692d5939f2aa201674d870
SHA1

5a8d3472a642eb62cfde5e4db469c62422b16792
SHA256

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7
SHA512

ad1398d865cda6c009cfab67901fcb7f2928a5b7dfd8cdc0a892bb6f1ec62f8d492f1f3a59277afac2251ebe2069a243b66d57754629290bbf68791f586c7311
SSDEEP

1536:d6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:5hZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI

Score

10^/10

babuk ransomware

Malware Config

Signatures

Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
ransomware babuk
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 19 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\CompleteResolve.tiff => C:\Users\Admin\Pictures\CompleteResolve.tiff.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureDeny.raw.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\UninstallRename.png => C:\Users\Admin\Pictures\UninstallRename.png.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\CompleteResolve.tiff	03110.exe
File renamed	C:\Users\Admin\Pictures\DebugEnable.crw => C:\Users\Admin\Pictures\DebugEnable.crw.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\MeasureDeny.raw => C:\Users\Admin\Pictures\MeasureDeny.raw.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\OutStop.raw.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\SetWrite.crw => C:\Users\Admin\Pictures\SetWrite.crw.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\RestartAdd.crw => C:\Users\Admin\Pictures\RestartAdd.crw.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\RestartAdd.crw.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\UninstallRename.png.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\WaitShow.crw => C:\Users\Admin\Pictures\WaitShow.crw.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\CompleteResolve.tiff.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\ConvertToInvoke.png => C:\Users\Admin\Pictures\ConvertToInvoke.png.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertToInvoke.png.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\DebugEnable.crw.babyk	03110.exe
File renamed	C:\Users\Admin\Pictures\OutStop.raw => C:\Users\Admin\Pictures\OutStop.raw.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\SetWrite.crw.babyk	03110.exe
File opened for modification	C:\Users\Admin\Pictures\WaitShow.crw.babyk	03110.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	03110.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\L:	03110.exe
File opened (read-only)	\??\B:	03110.exe
File opened (read-only)	\??\U:	03110.exe
File opened (read-only)	\??\O:	03110.exe
File opened (read-only)	\??\G:	03110.exe
File opened (read-only)	\??\P:	03110.exe
File opened (read-only)	\??\H:	03110.exe
File opened (read-only)	\??\K:	03110.exe
File opened (read-only)	\??\Z:	03110.exe
File opened (read-only)	\??\E:	03110.exe
File opened (read-only)	\??\R:	03110.exe
File opened (read-only)	\??\Y:	03110.exe
File opened (read-only)	\??\S:	03110.exe
File opened (read-only)	\??\F:	03110.exe
File opened (read-only)	\??\J:	03110.exe
File opened (read-only)	\??\V:	03110.exe
File opened (read-only)	\??\N:	03110.exe
File opened (read-only)	\??\Q:	03110.exe
File opened (read-only)	\??\W:	03110.exe
File opened (read-only)	\??\T:	03110.exe
File opened (read-only)	\??\M:	03110.exe
File opened (read-only)	\??\I:	03110.exe
File opened (read-only)	\??\A:	03110.exe
File opened (read-only)	\??\X:	03110.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 2 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
4240	vssadmin.exe
3628	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3352	03110.exe
3352	03110.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	964	vssvc.exe
Token: SeRestorePrivilege	964	vssvc.exe
Token: SeAuditPrivilege	964	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 5020	3352	03110.exe	78
PID 3352 wrote to memory of 5020	3352	03110.exe	78
PID 5020 wrote to memory of 3628	5020	cmd.exe	81
PID 5020 wrote to memory of 3628	5020	cmd.exe	81
PID 3352 wrote to memory of 3060	3352	03110.exe	84
PID 3352 wrote to memory of 3060	3352	03110.exe	84
PID 3060 wrote to memory of 4240	3060	cmd.exe	86
PID 3060 wrote to memory of 4240	3060	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\exe.ransomware.babuk\03\11\0B\03110BAA5AAD9D01610293F2B8CD21B44CC7EFA0A465E677D6B3F92510A4B1D7\03110.exe
"C:\Users\Admin\AppData\Local\Temp\exe.ransomware.babuk\03\11\0B\03110BAA5AAD9D01610293F2B8CD21B44CC7EFA0A465E677D6B3F92510A4B1D7\03110.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5020
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3628
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3060
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:4240

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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