babuk | c2f96661a63e6a894a46ae5bf83f85c3f9fa74cf20cc7b6d34b4888289ea7ae4

General

Target

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
Size

1.7MB
MD5

fd49374b6bf5ddfcf665a110da75f127
SHA1

b45353452bc2d9e1a93fd35a4438f97a068af1bf
SHA256

c2f96661a63e6a894a46ae5bf83f85c3f9fa74cf20cc7b6d34b4888289ea7ae4
SHA512

a43d9e63b4d1dff27e03fda00f347dabbf640c1a5e51397a15662a48050decbd8f908b8e63f16de75bafbe1ab0fece3fb689ced3d503e0a406a30b12997d2d50
SSDEEP

49152:k6MLyu3iyTEk+EPmk4O+jJWuuiA2TxyNwycImYYNZ:ktGwiq+EP+ZnuiA21yNw3Imd/

Score

10^/10

babuk evasion 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
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
Renames multiple (204) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Wine	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.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

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

description	ioc	process
File opened (read-only)	\??\R:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\U:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\K:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\B:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\M:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\Q:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\E:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\I:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\P:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\A:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\G:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\H:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\W:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\T:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\J:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\L:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\Z:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\X:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\O:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\S:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\N:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\Y:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
File opened (read-only)	\??\V:	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

pid process

2896 fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.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

Processes:

vssadmin.exevssadmin.exe

pid process

2964 vssadmin.exe
2884 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

pid process

2896 fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
2896 fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2540 vssvc.exe
Token: SeRestorePrivilege 2540 vssvc.exe
Token: SeAuditPrivilege 2540 vssvc.exe

pid	process
2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

pid	process
2964	vssadmin.exe
2884	vssadmin.exe

pid	process
2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe

description	pid	process
Token: SeBackupPrivilege	2540	vssvc.exe
Token: SeRestorePrivilege	2540	vssvc.exe
Token: SeAuditPrivilege	2540	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.execmd.execmd.exe

description	pid	process	target process
PID 2896 wrote to memory of 2512	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2896 wrote to memory of 2512	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2896 wrote to memory of 2512	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2896 wrote to memory of 2512	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2512 wrote to memory of 2964	2512	cmd.exe	vssadmin.exe
PID 2512 wrote to memory of 2964	2512	cmd.exe	vssadmin.exe
PID 2512 wrote to memory of 2964	2512	cmd.exe	vssadmin.exe
PID 2896 wrote to memory of 520	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2896 wrote to memory of 520	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2896 wrote to memory of 520	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 2896 wrote to memory of 520	2896	fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe	cmd.exe
PID 520 wrote to memory of 2884	520	cmd.exe	vssadmin.exe
PID 520 wrote to memory of 2884	520	cmd.exe	vssadmin.exe
PID 520 wrote to memory of 2884	520	cmd.exe	vssadmin.exe

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\fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fd49374b6bf5ddfcf665a110da75f127_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2964
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:520
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2884

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2540

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\PerfLogs\Admin\How To Restore Your Files.txt

Filesize
196B

MD5
593315f8f4d3337a6fa10980eb1a8459

SHA1
d4865a0c50b100f817e147541efcdca7a34e4fbd

SHA256
9fc95ab4b5f6e41aeb79aa5e77bb97e28e38df4eba77f5797b8a28749c005f26

SHA512
60e7ebf8729701c4a022708b399bb250eb4622a7b7d8e9ba636f65bc163622243f92997ee9b88ec47b57176dad0c966e0d8c2a51aa00de5ee80fc65d2ca3b469

Download Submit
memory/2896-9-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/2896-6-0x00000000009A0000-0x00000000009A2000-memory.dmp

Filesize
8KB

Download
memory/2896-4-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download
memory/2896-3-0x0000000000F00000-0x0000000001361000-memory.dmp

Filesize
4.4MB

Download
memory/2896-7-0x0000000000B80000-0x0000000000B81000-memory.dmp

Filesize
4KB

Download
memory/2896-0-0x0000000000F00000-0x0000000001361000-memory.dmp

Filesize
4.4MB

Download
memory/2896-8-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/2896-2-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/2896-5-0x0000000000940000-0x0000000000941000-memory.dmp

Filesize
4KB

Download
memory/2896-1-0x0000000077330000-0x0000000077332000-memory.dmp

Filesize
8KB

Download
memory/2896-31-0x0000000000BD0000-0x0000000000BD2000-memory.dmp

Filesize
8KB

Download
memory/2896-16-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

Filesize
4KB

Download
memory/2896-36-0x0000000000950000-0x0000000000951000-memory.dmp

Filesize
4KB

Download
memory/2896-285-0x0000000000F00000-0x0000000001361000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads