babuk | 5339981168dfcefb874dc7e82563fa7aca047f17b1184ae8db9336a2335473a9

Analysis

max time kernel
242s
max time network
206s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 05:59

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General

Target

exe.ransomware.babuk/02/8F/AC/028FACFF67136DE55FE200177A190DA625C8E1713B4E7D95BF5FC5412A5AFFFC/028FA.exe
Size

79KB
MD5

eb9e0b14e2235af24eeee881892fc825
SHA1

3fb00aa10ccfaedfd29f8b01ef6ef4434d260eb9
SHA256

028facff67136de55fe200177a190da625c8e1713b4e7d95bf5fc5412a5afffc
SHA512

c341517ba090bf530bd1324758644c8d6d2e488912bae19e0b066d508f3e37845ca8b39e5ee86fe75b22126d5d4bcb4957f58e02360c2606f9c0278382238c0a
SSDEEP

1536:m6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:ghZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI

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

Processes:

028FA.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\ConfirmRead.tiff	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\RestoreExit.tiff	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureGrant.raw.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\RestoreExit.tiff.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\UnprotectClose.raw.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\MeasureGrant.raw => C:\Users\Admin\Pictures\MeasureGrant.raw.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\RestoreExit.tiff => C:\Users\Admin\Pictures\RestoreExit.tiff.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\UnprotectClose.raw => C:\Users\Admin\Pictures\UnprotectClose.raw.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\ApproveNew.png.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\GetAssert.tif => C:\Users\Admin\Pictures\GetAssert.tif.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\GetAssert.tif.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\UnregisterComplete.tiff	028FA.exe
File renamed	C:\Users\Admin\Pictures\UnregisterComplete.tiff => C:\Users\Admin\Pictures\UnregisterComplete.tiff.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\AddUninstall.raw => C:\Users\Admin\Pictures\AddUninstall.raw.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\AddUninstall.raw.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\ApproveNew.png => C:\Users\Admin\Pictures\ApproveNew.png.babyk	028FA.exe
File renamed	C:\Users\Admin\Pictures\ConfirmRead.tiff => C:\Users\Admin\Pictures\ConfirmRead.tiff.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\ConfirmRead.tiff.babyk	028FA.exe
File opened for modification	C:\Users\Admin\Pictures\UnregisterComplete.tiff.babyk	028FA.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

Processes:

028FA.exe

description	ioc	process
File opened (read-only)	\??\H:	028FA.exe
File opened (read-only)	\??\L:	028FA.exe
File opened (read-only)	\??\W:	028FA.exe
File opened (read-only)	\??\T:	028FA.exe
File opened (read-only)	\??\U:	028FA.exe
File opened (read-only)	\??\I:	028FA.exe
File opened (read-only)	\??\N:	028FA.exe
File opened (read-only)	\??\F:	028FA.exe
File opened (read-only)	\??\Z:	028FA.exe
File opened (read-only)	\??\V:	028FA.exe
File opened (read-only)	\??\B:	028FA.exe
File opened (read-only)	\??\S:	028FA.exe
File opened (read-only)	\??\J:	028FA.exe
File opened (read-only)	\??\X:	028FA.exe
File opened (read-only)	\??\M:	028FA.exe
File opened (read-only)	\??\E:	028FA.exe
File opened (read-only)	\??\R:	028FA.exe
File opened (read-only)	\??\O:	028FA.exe
File opened (read-only)	\??\A:	028FA.exe
File opened (read-only)	\??\K:	028FA.exe
File opened (read-only)	\??\Q:	028FA.exe
File opened (read-only)	\??\Y:	028FA.exe
File opened (read-only)	\??\P:	028FA.exe
File opened (read-only)	\??\G:	028FA.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

Processes:

vssadmin.exevssadmin.exe

pid process

1552 vssadmin.exe
1376 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

028FA.exe

pid process

852 028FA.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 928 vssvc.exe
Token: SeRestorePrivilege 928 vssvc.exe
Token: SeAuditPrivilege 928 vssvc.exe

pid	process
1552	vssadmin.exe
1376	vssadmin.exe

pid	process
852	028FA.exe

description	pid	process
Token: SeBackupPrivilege	928	vssvc.exe
Token: SeRestorePrivilege	928	vssvc.exe
Token: SeAuditPrivilege	928	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

028FA.execmd.execmd.exe

description	pid	process	target process
PID 852 wrote to memory of 1192	852	028FA.exe	cmd.exe
PID 852 wrote to memory of 1192	852	028FA.exe	cmd.exe
PID 852 wrote to memory of 1192	852	028FA.exe	cmd.exe
PID 852 wrote to memory of 1192	852	028FA.exe	cmd.exe
PID 1192 wrote to memory of 1552	1192	cmd.exe	vssadmin.exe
PID 1192 wrote to memory of 1552	1192	cmd.exe	vssadmin.exe
PID 1192 wrote to memory of 1552	1192	cmd.exe	vssadmin.exe
PID 852 wrote to memory of 1076	852	028FA.exe	cmd.exe
PID 852 wrote to memory of 1076	852	028FA.exe	cmd.exe
PID 852 wrote to memory of 1076	852	028FA.exe	cmd.exe
PID 852 wrote to memory of 1076	852	028FA.exe	cmd.exe
PID 1076 wrote to memory of 1376	1076	cmd.exe	vssadmin.exe
PID 1076 wrote to memory of 1376	1076	cmd.exe	vssadmin.exe
PID 1076 wrote to memory of 1376	1076	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\exe.ransomware.babuk\02\8F\AC\028FACFF67136DE55FE200177A190DA625C8E1713B4E7D95BF5FC5412A5AFFFC\028FA.exe
"C:\Users\Admin\AppData\Local\Temp\exe.ransomware.babuk\02\8F\AC\028FACFF67136DE55FE200177A190DA625C8E1713B4E7D95BF5FC5412A5AFFFC\028FA.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:852
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1552
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1376

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:928

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

Replay Monitor

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Downloads

memory/852-54-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download
memory/1076-57-0x0000000000000000-mapping.dmp

Download
memory/1192-55-0x0000000000000000-mapping.dmp

Download
memory/1376-58-0x0000000000000000-mapping.dmp

Download
memory/1552-56-0x0000000000000000-mapping.dmp

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