venus | 4f92e2f752e4b0b30193d53375cd2fbd4beff02db9d6b3b6cadbf3b50e503498

General

Target

Venus.exe
Size

225KB
MD5

07f5fbcb96179acffab2638392d08fb8
SHA1

22d84ca8e620ef5fc0027b3e06876d1a04d10406
SHA256

4f92e2f752e4b0b30193d53375cd2fbd4beff02db9d6b3b6cadbf3b50e503498
SHA512

0ed902259cf218f0d1f6349ff4ee45b674f19f867cbbe7fee28cf80b7edf67e691738274df4b2c7be01aac60639c45e35717e2b9c59518bc6e1240a022acabf4
SSDEEP

6144:FQJmXLQwAhWUkJ0kfV50DEr2MxgTw7ozFD254W:FeeLQwAi07DWGcopfW

Score

10^/10

venus evasion persistence ransomware

Malware Config

Signatures

Venus
Venus is a ransomware first seen in 2022.
ransomware venus

Venus Ransomware 4 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000054a8-56.dat	family_venus
behavioral1/memory/1944-59-0x0000000000400000-0x000000000043E000-memory.dmp	family_venus
behavioral1/memory/1380-66-0x0000000000400000-0x000000000043E000-memory.dmp	family_venus
behavioral1/memory/1380-67-0x0000000000400000-0x000000000043E000-memory.dmp	family_venus

Executes dropped EXE 1 IoCs

pid	Process
1380	Venus.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1776	netsh.exe

Deletes itself 1 IoCs

pid	Process
1316	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Venus.exe = "C:\\Windows\\Venus.exe"	Venus.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	\??\E:\$RECYCLE.BIN\S-1-5-21-3845472200-3839195424-595303356-1000\desktop.ini	Venus.exe

Enumerates connected drives 3 TTPs 2 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

description	ioc	Process
File opened (read-only)	\??\F:	Venus.exe
File opened (read-only)	\??\E:	Venus.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\34870686271972527219.png	Venus.exe
File created	C:\Windows\Venus.exe	Venus.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
556	taskkill.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.venus	Venus.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.venus\DefaultIcon	Venus.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.venus\DefaultIcon\ = "C:\\Windows\\34870686271972527219.png"	Venus.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1132	PING.EXE

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1380	Venus.exe
Token: SeTcbPrivilege	1380	Venus.exe
Token: SeTakeOwnershipPrivilege	1380	Venus.exe
Token: SeSecurityPrivilege	1380	Venus.exe
Token: SeDebugPrivilege	556	taskkill.exe
Token: 33	2336	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2336	AUDIODG.EXE
Token: 33	2336	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2336	AUDIODG.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 1380	1944	Venus.exe	27
PID 1944 wrote to memory of 1380	1944	Venus.exe	27
PID 1944 wrote to memory of 1380	1944	Venus.exe	27
PID 1944 wrote to memory of 1380	1944	Venus.exe	27
PID 1944 wrote to memory of 1316	1944	Venus.exe	28
PID 1944 wrote to memory of 1316	1944	Venus.exe	28
PID 1944 wrote to memory of 1316	1944	Venus.exe	28
PID 1944 wrote to memory of 1316	1944	Venus.exe	28
PID 1380 wrote to memory of 1716	1380	Venus.exe	30
PID 1380 wrote to memory of 1716	1380	Venus.exe	30
PID 1380 wrote to memory of 1716	1380	Venus.exe	30
PID 1380 wrote to memory of 1716	1380	Venus.exe	30
PID 1316 wrote to memory of 1132	1316	cmd.exe	32
PID 1316 wrote to memory of 1132	1316	cmd.exe	32
PID 1316 wrote to memory of 1132	1316	cmd.exe	32
PID 1380 wrote to memory of 896	1380	Venus.exe	34
PID 1380 wrote to memory of 896	1380	Venus.exe	34
PID 1380 wrote to memory of 896	1380	Venus.exe	34
PID 1380 wrote to memory of 896	1380	Venus.exe	34
PID 1716 wrote to memory of 1776	1716	cmd.exe	33
PID 1716 wrote to memory of 1776	1716	cmd.exe	33
PID 1716 wrote to memory of 1776	1716	cmd.exe	33
PID 896 wrote to memory of 556	896	cmd.exe	36
PID 896 wrote to memory of 556	896	cmd.exe	36
PID 896 wrote to memory of 556	896	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\Venus.exe
"C:\Users\Admin\AppData\Local\Temp\Venus.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\Venus.exe
  "C:\Windows\Venus.exe" g g g o n e123
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Enumerates connected drives
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1380
- - C:\Windows\System32\cmd.exe
    /C netsh advfirewall firewall set rule group="File and Printer Sharing" new enable=Yes
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1716
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall set rule group="File and Printer Sharing" new enable=Yes
      4⤵
      Modifies Windows Firewall
      PID:1776
- - C:\Windows\System32\cmd.exe
    /C taskkill /F /IM msftesql.exe /IM sqlagent.exe /IM sqlbrowser.exe /IM sqlservr.exe /IM sqlwriter.exe /IM oracle.exe /IM ocssd.exe /IM dbsnmp.exe /IM synctime.exe /IM mydesktopqos.exe /IM agntsvc.exe /IM isqlplussvc.exe /IM xfssvccon.exe /IM mydesktopservice.exe /IM ocautoupds.exe /IM agntsvc.exe /IM agntsvc.exe /IM agntsvc.exe /IM encsvc.exe /IM firefoxconfig.exe /IM tbirdconfig.exe /IM ocomm.exe /IM mysqld.exe /IM mysqld-nt.exe /IM mysqld-opt.exe /IM dbeng50.exe /IM sqbcoreservice.exe /IM excel.exe /IM infopath.exe /IM msaccess.exe /IM mspub.exe /IM onenote.exe /IM outlook.exe /IM powerpnt.exe /IM sqlservr.exe /IM thebat64.exe /IM thunderbird.exe /IM winword.exe /IM wordpad.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:896
  - - C:\Windows\system32\taskkill.exe
      taskkill /F /IM msftesql.exe /IM sqlagent.exe /IM sqlbrowser.exe /IM sqlservr.exe /IM sqlwriter.exe /IM oracle.exe /IM ocssd.exe /IM dbsnmp.exe /IM synctime.exe /IM mydesktopqos.exe /IM agntsvc.exe /IM isqlplussvc.exe /IM xfssvccon.exe /IM mydesktopservice.exe /IM ocautoupds.exe /IM agntsvc.exe /IM agntsvc.exe /IM agntsvc.exe /IM encsvc.exe /IM firefoxconfig.exe /IM tbirdconfig.exe /IM ocomm.exe /IM mysqld.exe /IM mysqld-nt.exe /IM mysqld-opt.exe /IM dbeng50.exe /IM sqbcoreservice.exe /IM excel.exe /IM infopath.exe /IM msaccess.exe /IM mspub.exe /IM onenote.exe /IM outlook.exe /IM powerpnt.exe /IM sqlservr.exe /IM thebat64.exe /IM thunderbird.exe /IM winword.exe /IM wordpad.exe
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:556
- C:\Windows\System32\cmd.exe
  /c ping localhost -n 3 > nul & del C:\Users\Admin\AppData\Local\Temp\Venus.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1316
- - C:\Windows\system32\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:1132

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4d0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Venus.exe

Filesize
225KB

MD5
07f5fbcb96179acffab2638392d08fb8

SHA1
22d84ca8e620ef5fc0027b3e06876d1a04d10406

SHA256
4f92e2f752e4b0b30193d53375cd2fbd4beff02db9d6b3b6cadbf3b50e503498

SHA512
0ed902259cf218f0d1f6349ff4ee45b674f19f867cbbe7fee28cf80b7edf67e691738274df4b2c7be01aac60639c45e35717e2b9c59518bc6e1240a022acabf4

Download Submit
memory/1380-66-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1380-67-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1776-65-0x000007FEFC511000-0x000007FEFC513000-memory.dmp

Filesize
8KB

Download
memory/1944-59-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1944-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

Filesize
8KB

Download

Analysis

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