venus | fa7ba459236c7b27a0429f1961b992ab87fc8b3427469fd98bfc272ae6852063

General

Target

1c45c33e9884cb10264c1a2a0255e72a.exe
Size

225KB
MD5

1c45c33e9884cb10264c1a2a0255e72a
SHA1

1992336a5d752187c979e24a95a871d8932ade6d
SHA256

fa7ba459236c7b27a0429f1961b992ab87fc8b3427469fd98bfc272ae6852063
SHA512

ef8613f273ae04ae61c477ccaf81799f91d38b5f6453ebbdc39c05745cbab927849321f90547982016eefa43574efa1bedc5f90e9c7a5e38b70bc79e442ed9ad
SSDEEP

6144:AeJmXCQwAhozkJQkRV50DErCMxgTw7ozFD254W:AQeCQwARQBD+GcopfW

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/0x000b000000012319-56.dat	family_venus
behavioral1/memory/1368-59-0x0000000000400000-0x000000000043E000-memory.dmp	family_venus
behavioral1/memory/1912-66-0x0000000000400000-0x000000000043E000-memory.dmp	family_venus
behavioral1/memory/1912-67-0x0000000000400000-0x000000000043E000-memory.dmp	family_venus

Executes dropped EXE 1 IoCs

pid	Process
1912	1c45c33e9884cb10264c1a2a0255e72a.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1352	netsh.exe

Deletes itself 1 IoCs

pid	Process
1884	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-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\1c45c33e9884cb10264c1a2a0255e72a.exe = "C:\\Windows\\1c45c33e9884cb10264c1a2a0255e72a.exe"	1c45c33e9884cb10264c1a2a0255e72a.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	\??\E:\$RECYCLE.BIN\S-1-5-21-575491160-2295418218-1540667289-1000\desktop.ini	1c45c33e9884cb10264c1a2a0255e72a.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)	\??\E:	1c45c33e9884cb10264c1a2a0255e72a.exe
File opened (read-only)	\??\F:	1c45c33e9884cb10264c1a2a0255e72a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\1c45c33e9884cb10264c1a2a0255e72a.exe	1c45c33e9884cb10264c1a2a0255e72a.exe
File created	C:\Windows\8563653131972527219.png	1c45c33e9884cb10264c1a2a0255e72a.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
560	taskkill.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.venus	1c45c33e9884cb10264c1a2a0255e72a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.venus\DefaultIcon	1c45c33e9884cb10264c1a2a0255e72a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.venus\DefaultIcon\ = "C:\\Windows\\8563653131972527219.png"	1c45c33e9884cb10264c1a2a0255e72a.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1484	PING.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1912	1c45c33e9884cb10264c1a2a0255e72a.exe
Token: SeTcbPrivilege	1912	1c45c33e9884cb10264c1a2a0255e72a.exe
Token: SeTakeOwnershipPrivilege	1912	1c45c33e9884cb10264c1a2a0255e72a.exe
Token: SeSecurityPrivilege	1912	1c45c33e9884cb10264c1a2a0255e72a.exe
Token: SeDebugPrivilege	560	taskkill.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1912	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	28
PID 1368 wrote to memory of 1912	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	28
PID 1368 wrote to memory of 1912	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	28
PID 1368 wrote to memory of 1912	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	28
PID 1368 wrote to memory of 1884	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	29
PID 1368 wrote to memory of 1884	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	29
PID 1368 wrote to memory of 1884	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	29
PID 1368 wrote to memory of 1884	1368	1c45c33e9884cb10264c1a2a0255e72a.exe	29
PID 1884 wrote to memory of 1484	1884	cmd.exe	32
PID 1884 wrote to memory of 1484	1884	cmd.exe	32
PID 1884 wrote to memory of 1484	1884	cmd.exe	32
PID 1912 wrote to memory of 268	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	31
PID 1912 wrote to memory of 268	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	31
PID 1912 wrote to memory of 268	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	31
PID 1912 wrote to memory of 268	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	31
PID 1912 wrote to memory of 1548	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	34
PID 1912 wrote to memory of 1548	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	34
PID 1912 wrote to memory of 1548	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	34
PID 1912 wrote to memory of 1548	1912	1c45c33e9884cb10264c1a2a0255e72a.exe	34
PID 268 wrote to memory of 1352	268	cmd.exe	36
PID 268 wrote to memory of 1352	268	cmd.exe	36
PID 268 wrote to memory of 1352	268	cmd.exe	36
PID 1548 wrote to memory of 560	1548	cmd.exe	37
PID 1548 wrote to memory of 560	1548	cmd.exe	37
PID 1548 wrote to memory of 560	1548	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\1c45c33e9884cb10264c1a2a0255e72a.exe
"C:\Users\Admin\AppData\Local\Temp\1c45c33e9884cb10264c1a2a0255e72a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\1c45c33e9884cb10264c1a2a0255e72a.exe
  "C:\Windows\1c45c33e9884cb10264c1a2a0255e72a.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:1912
- - 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:268
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall set rule group="File and Printer Sharing" new enable=Yes
      4⤵
      Modifies Windows Firewall
      PID:1352
- - 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:1548
  - - 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:560
- C:\Windows\System32\cmd.exe
  /c ping localhost -n 3 > nul & del C:\Users\Admin\AppData\Local\Temp\1c45c33e9884cb10264c1a2a0255e72a.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Windows\system32\PING.EXE
    ping localhost -n 3
    3⤵
    - Runs ping.exe
    PID:1484

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\1c45c33e9884cb10264c1a2a0255e72a.exe

Filesize
225KB

MD5
1c45c33e9884cb10264c1a2a0255e72a

SHA1
1992336a5d752187c979e24a95a871d8932ade6d

SHA256
fa7ba459236c7b27a0429f1961b992ab87fc8b3427469fd98bfc272ae6852063

SHA512
ef8613f273ae04ae61c477ccaf81799f91d38b5f6453ebbdc39c05745cbab927849321f90547982016eefa43574efa1bedc5f90e9c7a5e38b70bc79e442ed9ad

Download Submit
memory/1352-65-0x000007FEFBA21000-0x000007FEFBA23000-memory.dmp

Filesize
8KB

Download
memory/1368-59-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1368-54-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/1912-66-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1912-67-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download

Analysis

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