babuk | cc65535243dfd3cd54a9c5ecfcb93c7f918a87c725e9c52925017ab92effe278

Resubmissions

05/02/2025, 08:57

250205-kwyvwayrgv10

13/07/2024, 09:29

240713-lf7nhsvgrp10

Analysis

max time kernel
122s
max time network
129s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13/07/2024, 09:29

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General

Target
01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
Size 79KB
Sample240713-lf7nhsvgrp
SHA256 01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f
MD5 f9afb31bc17811e5ab4fa406f105b1fe
SHA1 d1a9449dcc8a3aa0c887bce71f128866175f679a
SHA512 6feca3dfa221b704208754e67bcdce02a2253961da098b3e376d11217cd00b9f77e42f37f242e1a1f4b759b5fd172c29c9f153fce32eace48e07e802aff40b55
SSDEEP 1536:SX6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:uhZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

babuk darkside defense_evasion execution impact ransomware

Malware Config

Extracted

Path

C:\Users\How To Restore Your Files.txt

darkside

Ransom Note

----------- [ Hello! ] -------------> ****BY BABUK LOCKER**** What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted from your network and copied. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - a universal decoder. This program will restore your entire network. Follow our instructions below and you will recover all your data. If you continue to ignore this for a long time, we will start reporting the hack to mainstream media and posting your data to the dark web. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. How to contact us? ---------------------------------------------- Using EMAIL: 1) Open your mail 2) Write us: [email protected] backup address: [email protected] [email protected] TO SEND TO THE EMAIL ONLY PERSONAL ID!!! YOUR PERSONAL ID, ATTACH IT: beRv79st1xwM9NTHA1NluiebVXTdr4FS0eRnD5W9wMjAqbKQctyvdxbYuZ8e !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!

Emails

Signatures

Babuk Locker
RaaS first seen in 2021 initially called Vasa Locker.
ransomware babuk
DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
ransomware darkside
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (189) 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)	\??\O:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\G:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\H:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\L:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\X:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\V:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\Y:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\W:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\R:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\A:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\Z:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\B:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\M:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\Q:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\I:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\P:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\K:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\U:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\T:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\S:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\J:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\N:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
File opened (read-only)	\??\E:	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe

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

System Information Discovery
T1082

Interacts with shadow copies 3 TTPs 2 IoCs

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

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
2448	vssadmin.exe
2740	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	2680	vssvc.exe
Token: SeRestorePrivilege	2680	vssvc.exe
Token: SeAuditPrivilege	2680	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 1524	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	31
PID 804 wrote to memory of 1524	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	31
PID 804 wrote to memory of 1524	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	31
PID 804 wrote to memory of 1524	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	31
PID 1524 wrote to memory of 2448	1524	cmd.exe	33
PID 1524 wrote to memory of 2448	1524	cmd.exe	33
PID 1524 wrote to memory of 2448	1524	cmd.exe	33
PID 804 wrote to memory of 2880	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	38
PID 804 wrote to memory of 2880	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	38
PID 804 wrote to memory of 2880	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	38
PID 804 wrote to memory of 2880	804	01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe	38
PID 2880 wrote to memory of 2740	2880	cmd.exe	40
PID 2880 wrote to memory of 2740	2880	cmd.exe	40
PID 2880 wrote to memory of 2740	2880	cmd.exe	40

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\01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe
"C:\Users\Admin\AppData\Local\Temp\01c647838c374e91e8f9fe967fd25235d72264414bb0d5b82c4fbd4151a9717f.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:804
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1524
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2448
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2740

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

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

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Downloads

How To Restore Your Files.txt

Path C:\Users\How To Restore Your Files.txt
Size 1KB
SHA256 d7c3edc0231627dccb4c8fc5477ef3bb556f73b5f44d26d7b979c86e856731d6
MD5 9b57be4df98eb3b740a28da699734499
SHA1 abee599dc58c21a7cacf4bc6a727fee782df8b23
SHA512 96299b107c3623bda24845a732147b988b153664355a6748c5085e443b626377c8b5cc4c5a83347cc00093dffa7233d6a9665f2b812a2f6e7244b9a9c8f3a389
MD5 SHA1 SHA512

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