lockfile | e36819a304d8eb00a404b3ff1dce1f708de985ca87f56e8c571a4a14740ffd62

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-04-2024 00:05

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General

Target

2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
Size

71KB
MD5

44fcd277d0a92c0b7eafd911ccc93864
SHA1

6beed4cec39a2f126738e9a8909cd84f4edb5736
SHA256

e36819a304d8eb00a404b3ff1dce1f708de985ca87f56e8c571a4a14740ffd62
SHA512

2b6085c757242f552b1db42e9353c41d9ff8c5f7b9cc69ee4441087862a16487ccc58690d08487fdb5fc9e8072b275bf74085ee901727fdd2eacdc4fa5eadf04
SSDEEP

1536:AXcbhZMBIWhuUsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2AH:lhZEVsrQLOJgY8Zp8LHD4XWaNH71dLdS

Score

10^/10

lockfile ransomware

Malware Config

Signatures

LockFile
LockFile is a new ransomware that emerged in July 2021 with ProxyShell vulnerabilties.
ransomware lockfile
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 (190) 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

Processes:

2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe

description	ioc	process
File opened (read-only)	\??\W:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\E:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\Z:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\R:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\T:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\Y:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\H:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\X:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\V:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\N:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\I:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\P:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\A:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\S:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\B:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\M:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\Q:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\U:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\O:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\G:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\J:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\K:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
File opened (read-only)	\??\L:	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_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

Processes:

vssadmin.exevssadmin.exe

pid process

1960 vssadmin.exe
1724 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe

pid process

1936 2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2908 vssvc.exe
Token: SeRestorePrivilege 2908 vssvc.exe
Token: SeAuditPrivilege 2908 vssvc.exe

pid	process
1960	vssadmin.exe
1724	vssadmin.exe

pid	process
1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe

description	pid	process
Token: SeBackupPrivilege	2908	vssvc.exe
Token: SeRestorePrivilege	2908	vssvc.exe
Token: SeAuditPrivilege	2908	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.execmd.execmd.exe

description	pid	process	target process
PID 1936 wrote to memory of 2984	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1936 wrote to memory of 2984	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1936 wrote to memory of 2984	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1936 wrote to memory of 2984	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 2984 wrote to memory of 1960	2984	cmd.exe	vssadmin.exe
PID 2984 wrote to memory of 1960	2984	cmd.exe	vssadmin.exe
PID 2984 wrote to memory of 1960	2984	cmd.exe	vssadmin.exe
PID 1936 wrote to memory of 1932	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1936 wrote to memory of 1932	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1936 wrote to memory of 1932	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1936 wrote to memory of 1932	1936	2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe	cmd.exe
PID 1932 wrote to memory of 1724	1932	cmd.exe	vssadmin.exe
PID 1932 wrote to memory of 1724	1932	cmd.exe	vssadmin.exe
PID 1932 wrote to memory of 1724	1932	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\2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-12_44fcd277d0a92c0b7eafd911ccc93864_babuk_destroyer.exe"
1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1936

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:2984

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:1960

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:1724

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2908

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\How To Restore Your Files.txt
Filesize
898B

MD5
0b382cae2e96dc2444193e0d1ff7f1a2

SHA1
f8100f578b0d07923ab9ba46361b2797228ab4ea

SHA256
5347b1ece7f3b476cfb778aa628134041078caf39f62c9da2f2479c5d74f1f1c

SHA512
fff1546d25f85c94cd629b975e2ba4f919e293d1bf79363cee2ff359ea3a292394313cc7ffcdcc2a0d5e18577e434bbad33418e9edf87b85db86edb1fe226acd

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