babuk | 9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0

General

Target

cf88599048145e4911915215a91527f4.exe
Size

1.1MB
MD5

cf88599048145e4911915215a91527f4
SHA1

f4ba5c7117736388c4de3442b1d6e4f84628c15d
SHA256

9f7d6949fd359dce79d3233eb80101ff706a35de5308543b0488450c19eba0f0
SHA512

254f6e26ed075ff1fe46493e36e6ec7eb70db52d2219070b6a77cbf7202d231fc826bd3fb69bdcaee86e45c9ce4ee8bc7085d37d5627a0bc1d2ec86aa9f2c0f7
SSDEEP

24576:tFJpkHzc3HYxhOIxYk3+cG5w1Uz4RcU96o/pkFMzs3pOqA:zkHzl+0OFO1a4RcU8o/pCMzWO

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
T1070.004

Inhibit System Recovery
T1490
Renames multiple (199) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	cf88599048145e4911915215a91527f4.exe

Enumerates connected drives 3 TTPs 23 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)	\??\J:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\K:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\L:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\B:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\W:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\E:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\U:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\G:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\M:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\T:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\I:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\P:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\Z:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\V:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\Q:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\A:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\S:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\X:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\N:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\R:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\Y:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\O:	cf88599048145e4911915215a91527f4.exe
File opened (read-only)	\??\H:	cf88599048145e4911915215a91527f4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 1468	1704	cf88599048145e4911915215a91527f4.exe	95

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

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

T1070.004

Inhibit System Recovery

T1490

pid	Process
2592	vssadmin.exe
3680	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1704	cf88599048145e4911915215a91527f4.exe
1704	cf88599048145e4911915215a91527f4.exe
1704	cf88599048145e4911915215a91527f4.exe
1704	cf88599048145e4911915215a91527f4.exe
1468	cf88599048145e4911915215a91527f4.exe
1468	cf88599048145e4911915215a91527f4.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	cf88599048145e4911915215a91527f4.exe
Token: SeBackupPrivilege	4440	vssvc.exe
Token: SeRestorePrivilege	4440	vssvc.exe
Token: SeAuditPrivilege	4440	vssvc.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 3096	1704	cf88599048145e4911915215a91527f4.exe	93
PID 1704 wrote to memory of 3096	1704	cf88599048145e4911915215a91527f4.exe	93
PID 1704 wrote to memory of 3096	1704	cf88599048145e4911915215a91527f4.exe	93
PID 1704 wrote to memory of 1048	1704	cf88599048145e4911915215a91527f4.exe	94
PID 1704 wrote to memory of 1048	1704	cf88599048145e4911915215a91527f4.exe	94
PID 1704 wrote to memory of 1048	1704	cf88599048145e4911915215a91527f4.exe	94
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1704 wrote to memory of 1468	1704	cf88599048145e4911915215a91527f4.exe	95
PID 1468 wrote to memory of 4292	1468	cf88599048145e4911915215a91527f4.exe	96
PID 1468 wrote to memory of 4292	1468	cf88599048145e4911915215a91527f4.exe	96
PID 4292 wrote to memory of 2592	4292	cmd.exe	98
PID 4292 wrote to memory of 2592	4292	cmd.exe	98
PID 1468 wrote to memory of 3592	1468	cf88599048145e4911915215a91527f4.exe	102
PID 1468 wrote to memory of 3592	1468	cf88599048145e4911915215a91527f4.exe	102
PID 3592 wrote to memory of 3680	3592	cmd.exe	104
PID 3592 wrote to memory of 3680	3592	cmd.exe	104

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe
"C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe
  "C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe"
  2⤵
  PID:3096
- C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe
  "C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe"
  2⤵
  PID:1048
- C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe
  "C:\Users\Admin\AppData\Local\Temp\cf88599048145e4911915215a91527f4.exe"
  2⤵
  - Checks computer location settings
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4292
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2592
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3592
  - - C:\Windows\system32\vssadmin.exe
      vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:3680

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

2

T1070

File Deletion

2

T1070.004

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Recovery\WindowsRE\How To Restore Your Files.txt

Filesize
233B

MD5
715b331e31300f275b8050ab87f43600

SHA1
3205f66c28528831a3298be5278598d15b871297

SHA256
18e4c88e767b5bd0cc90b63a626d0e68e7fa5c1bca45419ed47dc94c7f085d92

SHA512
351077a945e166a1a45644403eaffeb25fd941db87074abe7813e55f89a5d7f49e911060779918724e55b03518b5d114e105ec35ba4f287236323573277be738

Download Submit
memory/1468-13-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1468-331-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1468-315-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1468-19-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1468-17-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1468-16-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1704-2-0x0000000006010000-0x00000000065B4000-memory.dmp

Filesize
5.6MB

Download
memory/1704-6-0x00000000058D0000-0x00000000058D1000-memory.dmp

Filesize
4KB

Download
memory/1704-9-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/1704-10-0x0000000005950000-0x0000000005960000-memory.dmp

Filesize
64KB

Download
memory/1704-11-0x0000000009110000-0x00000000091B2000-memory.dmp

Filesize
648KB

Download
memory/1704-12-0x000000000B8A0000-0x000000000B8D6000-memory.dmp

Filesize
216KB

Download
memory/1704-7-0x0000000005A20000-0x0000000005A2A000-memory.dmp

Filesize
40KB

Download
memory/1704-8-0x0000000008DE0000-0x0000000008DF8000-memory.dmp

Filesize
96KB

Download
memory/1704-1-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/1704-18-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/1704-4-0x0000000005B00000-0x0000000005B9C000-memory.dmp

Filesize
624KB

Download
memory/1704-5-0x0000000005950000-0x0000000005960000-memory.dmp

Filesize
64KB

Download
memory/1704-3-0x0000000005960000-0x00000000059F2000-memory.dmp

Filesize
584KB

Download
memory/1704-0-0x0000000000E10000-0x0000000000F3A000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads