babuk | adb10da10d9e2cc882bfadf2210a6cb2fdc62308470200401ffe869c01405995

General

Target

2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
Size

79KB
MD5

d5eaa5c4f55781bc3f161e7c583e45c4
SHA1

d3796032c80f40cd7e1c6c8b5896ac8945c3eee1
SHA256

adb10da10d9e2cc882bfadf2210a6cb2fdc62308470200401ffe869c01405995
SHA512

5ae0af58d804e8f1ec624d1f4ea68a625d75373d14c73ea7ce8f0a988c0427a69138fa8ceeab978f7db3c246a44169fa33aa79107897c94b483cd657bde176ff
SSDEEP

1536:apoUyFydC/ZbtsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2ncf:1UyFydC/NtsrQLOJgY8Zp8LHD4XWaNHY

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 (192) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

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)	\??\Q:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\P:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\S:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\K:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\W:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\R:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\T:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\Y:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\I:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\O:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\V:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\M:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\A:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\G:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\H:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\J:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\X:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\B:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\E:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\U:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\L:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\Z:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
File opened (read-only)	\??\N:	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe

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
2672	vssadmin.exe
1412	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2316	vssvc.exe
Token: SeRestorePrivilege	2316	vssvc.exe
Token: SeAuditPrivilege	2316	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 2476	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	28
PID 1368 wrote to memory of 2476	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	28
PID 1368 wrote to memory of 2476	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	28
PID 1368 wrote to memory of 2476	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	28
PID 2476 wrote to memory of 2672	2476	cmd.exe	30
PID 2476 wrote to memory of 2672	2476	cmd.exe	30
PID 2476 wrote to memory of 2672	2476	cmd.exe	30
PID 1368 wrote to memory of 780	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	34
PID 1368 wrote to memory of 780	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	34
PID 1368 wrote to memory of 780	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	34
PID 1368 wrote to memory of 780	1368	2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe	34
PID 780 wrote to memory of 1412	780	cmd.exe	36
PID 780 wrote to memory of 1412	780	cmd.exe	36
PID 780 wrote to memory of 1412	780	cmd.exe	36

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\2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-19_d5eaa5c4f55781bc3f161e7c583e45c4_babuk_destroyer.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2476
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2672
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:780
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1412

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2316

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

C:\How To Restore Your Files.txt

Filesize
8KB

MD5
2af817219bb1d24a11ab839b9453b5f3

SHA1
f9ff9075f9472c41aeb93df2e439fe624dc143b0

SHA256
6a16454cad4534d51025f65277abaec0ff4a30082840154a35889445bb3ad0a0

SHA512
d443e149d8b097cc64b0bbbf65e3d660de43943a4b36ac4c41bfbdfe814fb895d7ba97128aa1235b85d2292b79afc451fbcb89cc6a56d33ecff7d93e18a15c30

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Analysis

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