babuk | 5339981168dfcefb874dc7e82563fa7aca047f17b1184ae8db9336a2335473a9

Analysis

max time kernel
53s
max time network
54s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 05:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

exe.ransomware.babuk/00/E5/59/00E559A406F5D78514ADA50FE573374D78FCC5C12C6D443D07311131B2542E2F/00E55.exe
Size

79KB
MD5

e9fca248189c7cf66e7b6471713b0f98
SHA1

a17d9d6dbb4fda3aa7bd4600d0fef75cc9a8a405
SHA256

00e559a406f5d78514ada50fe573374d78fcc5c12c6d443d07311131b2542e2f
SHA512

460c32147156d63160a51a7710be9bd4c1bcea944a54c0fe57adc05911377ef922e3d9e2c9a310d664c2c20d683454cc5984395649e47ec6a2033d6d15ab900d
SSDEEP

1536:r6UhZM4hubesrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2zs4:vhZ5YesrQLOJgY8Zp8LHD4XWaNH71dLI

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 15 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

00E55.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\FormatPush.png => C:\Users\Admin\Pictures\FormatPush.png.babyk	00E55.exe
File renamed	C:\Users\Admin\Pictures\MountNew.tiff => C:\Users\Admin\Pictures\MountNew.tiff.babyk	00E55.exe
File renamed	C:\Users\Admin\Pictures\CompleteCompress.crw => C:\Users\Admin\Pictures\CompleteCompress.crw.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\MountNew.tiff	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\StopMount.png.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\CompleteCompress.crw.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\MountNew.tiff.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\UninstallBlock.tif.babyk	00E55.exe
File renamed	C:\Users\Admin\Pictures\UnprotectSave.raw => C:\Users\Admin\Pictures\UnprotectSave.raw.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\UnprotectSave.raw.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\FormatPush.png.babyk	00E55.exe
File renamed	C:\Users\Admin\Pictures\StopMount.png => C:\Users\Admin\Pictures\StopMount.png.babyk	00E55.exe
File renamed	C:\Users\Admin\Pictures\TestSkip.raw => C:\Users\Admin\Pictures\TestSkip.raw.babyk	00E55.exe
File renamed	C:\Users\Admin\Pictures\UninstallBlock.tif => C:\Users\Admin\Pictures\UninstallBlock.tif.babyk	00E55.exe
File opened for modification	C:\Users\Admin\Pictures\TestSkip.raw.babyk	00E55.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:

00E55.exe

description	ioc	process
File opened (read-only)	\??\Q:	00E55.exe
File opened (read-only)	\??\T:	00E55.exe
File opened (read-only)	\??\Z:	00E55.exe
File opened (read-only)	\??\B:	00E55.exe
File opened (read-only)	\??\M:	00E55.exe
File opened (read-only)	\??\J:	00E55.exe
File opened (read-only)	\??\K:	00E55.exe
File opened (read-only)	\??\Y:	00E55.exe
File opened (read-only)	\??\U:	00E55.exe
File opened (read-only)	\??\I:	00E55.exe
File opened (read-only)	\??\P:	00E55.exe
File opened (read-only)	\??\S:	00E55.exe
File opened (read-only)	\??\G:	00E55.exe
File opened (read-only)	\??\L:	00E55.exe
File opened (read-only)	\??\N:	00E55.exe
File opened (read-only)	\??\O:	00E55.exe
File opened (read-only)	\??\A:	00E55.exe
File opened (read-only)	\??\V:	00E55.exe
File opened (read-only)	\??\W:	00E55.exe
File opened (read-only)	\??\E:	00E55.exe
File opened (read-only)	\??\R:	00E55.exe
File opened (read-only)	\??\F:	00E55.exe
File opened (read-only)	\??\H:	00E55.exe
File opened (read-only)	\??\X:	00E55.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

764 vssadmin.exe
1948 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

00E55.exe

pid process

1524 00E55.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1724 vssvc.exe
Token: SeRestorePrivilege 1724 vssvc.exe
Token: SeAuditPrivilege 1724 vssvc.exe

pid	process
764	vssadmin.exe
1948	vssadmin.exe

pid	process
1524	00E55.exe

description	pid	process
Token: SeBackupPrivilege	1724	vssvc.exe
Token: SeRestorePrivilege	1724	vssvc.exe
Token: SeAuditPrivilege	1724	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

00E55.execmd.execmd.exe

description	pid	process	target process
PID 1524 wrote to memory of 812	1524	00E55.exe	cmd.exe
PID 1524 wrote to memory of 812	1524	00E55.exe	cmd.exe
PID 1524 wrote to memory of 812	1524	00E55.exe	cmd.exe
PID 1524 wrote to memory of 812	1524	00E55.exe	cmd.exe
PID 812 wrote to memory of 764	812	cmd.exe	vssadmin.exe
PID 812 wrote to memory of 764	812	cmd.exe	vssadmin.exe
PID 812 wrote to memory of 764	812	cmd.exe	vssadmin.exe
PID 1524 wrote to memory of 2028	1524	00E55.exe	cmd.exe
PID 1524 wrote to memory of 2028	1524	00E55.exe	cmd.exe
PID 1524 wrote to memory of 2028	1524	00E55.exe	cmd.exe
PID 1524 wrote to memory of 2028	1524	00E55.exe	cmd.exe
PID 2028 wrote to memory of 1948	2028	cmd.exe	vssadmin.exe
PID 2028 wrote to memory of 1948	2028	cmd.exe	vssadmin.exe
PID 2028 wrote to memory of 1948	2028	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\exe.ransomware.babuk\00\E5\59\00E559A406F5D78514ADA50FE573374D78FCC5C12C6D443D07311131B2542E2F\00E55.exe
"C:\Users\Admin\AppData\Local\Temp\exe.ransomware.babuk\00\E5\59\00E559A406F5D78514ADA50FE573374D78FCC5C12C6D443D07311131B2542E2F\00E55.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:812
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:764
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1948

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1724

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

Loading Replay Monitor...

Downloads

memory/764-56-0x0000000000000000-mapping.dmp

Download
memory/812-55-0x0000000000000000-mapping.dmp

Download
memory/1524-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1948-58-0x0000000000000000-mapping.dmp

Download
memory/2028-57-0x0000000000000000-mapping.dmp

Download