babuk | a3788d8cf37d691627bdbc5add07b598fdde66bdfcdb05299b0976715b392a61

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-en-20211208
submitted
15-12-2021 06:21

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General

Target

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
Size

79KB
MD5

1dbd0abfdd692d5939f2aa201674d870
SHA1

5a8d3472a642eb62cfde5e4db469c62422b16792
SHA256

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7
SHA512

ad1398d865cda6c009cfab67901fcb7f2928a5b7dfd8cdc0a892bb6f1ec62f8d492f1f3a59277afac2251ebe2069a243b66d57754629290bbf68791f586c7311

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 9 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\ExitExport.tif.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened for modification	C:\Users\Admin\Pictures\PopInitialize.tiff	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened for modification	C:\Users\Admin\Pictures\PopInitialize.tiff.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File renamed	C:\Users\Admin\Pictures\PopInitialize.tiff => C:\Users\Admin\Pictures\PopInitialize.tiff.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File renamed	C:\Users\Admin\Pictures\RequestClear.tif => C:\Users\Admin\Pictures\RequestClear.tif.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened for modification	C:\Users\Admin\Pictures\RequestClear.tif.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File renamed	C:\Users\Admin\Pictures\CopySkip.png => C:\Users\Admin\Pictures\CopySkip.png.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened for modification	C:\Users\Admin\Pictures\CopySkip.png.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File renamed	C:\Users\Admin\Pictures\ExitExport.tif => C:\Users\Admin\Pictures\ExitExport.tif.babyk	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.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:

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe

description	ioc	process
File opened (read-only)	\??\I:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\H:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\J:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\K:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\T:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\Y:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\U:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\O:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\P:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\V:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\N:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\W:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\E:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\R:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\A:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\G:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\L:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\B:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\Q:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\S:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\F:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\Z:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\X:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
File opened (read-only)	\??\M:	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.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

524 vssadmin.exe
2024 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe

pid process

944 03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1132 vssvc.exe
Token: SeRestorePrivilege 1132 vssvc.exe
Token: SeAuditPrivilege 1132 vssvc.exe

pid	process
524	vssadmin.exe
2024	vssadmin.exe

pid	process
944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe

description	pid	process
Token: SeBackupPrivilege	1132	vssvc.exe
Token: SeRestorePrivilege	1132	vssvc.exe
Token: SeAuditPrivilege	1132	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.execmd.execmd.exe

description	pid	process	target process
PID 944 wrote to memory of 820	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 944 wrote to memory of 820	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 944 wrote to memory of 820	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 944 wrote to memory of 820	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 820 wrote to memory of 524	820	cmd.exe	vssadmin.exe
PID 820 wrote to memory of 524	820	cmd.exe	vssadmin.exe
PID 820 wrote to memory of 524	820	cmd.exe	vssadmin.exe
PID 944 wrote to memory of 1252	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 944 wrote to memory of 1252	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 944 wrote to memory of 1252	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 944 wrote to memory of 1252	944	03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe	cmd.exe
PID 1252 wrote to memory of 2024	1252	cmd.exe	vssadmin.exe
PID 1252 wrote to memory of 2024	1252	cmd.exe	vssadmin.exe
PID 1252 wrote to memory of 2024	1252	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe
"C:\Users\Admin\AppData\Local\Temp\03110baa5aad9d01610293f2b8cd21b44cc7efa0a465e677d6b3f92510a4b1d7.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:944

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:820

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:524

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:2024

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1132

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

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Downloads

memory/524-56-0x0000000000000000-mapping.dmp

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memory/820-55-0x0000000000000000-mapping.dmp

Download
memory/944-54-0x0000000076911000-0x0000000076913000-memory.dmp

Filesize
8KB

Download
memory/1252-57-0x0000000000000000-mapping.dmp

Download
memory/2024-58-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads