venomrat | 5e74c2b7ac2d1ad593abac2e47d690a083bf96f1566901e58a5f59d221bc9853

Analysis

max time kernel
138s
max time network
143s
platform
windows10_x64
resource
win10
submitted
15/08/2020, 22:45

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General

Target
7-Venom.exe
Size 625KB
Sample200815-gd986etyce
SHA256 5e74c2b7ac2d1ad593abac2e47d690a083bf96f1566901e58a5f59d221bc9853
MD5 8e0459ea44e2e136a66683b4bb1b9c66
SHA1 e675cd144db3f6adeef99c1d790caae6df4d2b49
SHA512 257f134d34a6016295e2807e1ff94afb84e25897ae5dd346a8c17e5e28e9dbc130055d22adadfd1f31776d4d62c055d204f3f1293df9c58da2daa9244e2f5059
MD5 SHA1 SHA512

Score

10^/10

rat rootkit stealer venomrat evasion trojan

Malware Config

Signatures

Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089
VenomRAT
VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
rat rootkit stealer venomrat

Executes dropped EXE 1 IoCs

pid	Process
512	windowsrc.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	7-Venom.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	7-Venom.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3660	schtasks.exe
1340	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
704	powershell.exe
704	powershell.exe
704	powershell.exe
3180	7-Venom.exe
3180	7-Venom.exe
3180	7-Venom.exe
3180	7-Venom.exe
3180	7-Venom.exe
3180	7-Venom.exe
3180	7-Venom.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3180	7-Venom.exe
Token: SeDebugPrivilege	704	powershell.exe
Token: SeDebugPrivilege	512	windowsrc.exe
Token: SeDebugPrivilege	512	windowsrc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
512	windowsrc.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 3660	3180	7-Venom.exe	68
PID 3180 wrote to memory of 3660	3180	7-Venom.exe	68
PID 3180 wrote to memory of 3660	3180	7-Venom.exe	68
PID 3180 wrote to memory of 512	3180	7-Venom.exe	70
PID 3180 wrote to memory of 512	3180	7-Venom.exe	70
PID 3180 wrote to memory of 512	3180	7-Venom.exe	70
PID 3180 wrote to memory of 704	3180	7-Venom.exe	71
PID 3180 wrote to memory of 704	3180	7-Venom.exe	71
PID 3180 wrote to memory of 704	3180	7-Venom.exe	71
PID 512 wrote to memory of 1340	512	windowsrc.exe	73
PID 512 wrote to memory of 1340	512	windowsrc.exe	73
PID 512 wrote to memory of 1340	512	windowsrc.exe	73
PID 3180 wrote to memory of 2144	3180	7-Venom.exe	75
PID 3180 wrote to memory of 2144	3180	7-Venom.exe	75
PID 3180 wrote to memory of 2144	3180	7-Venom.exe	75
PID 3180 wrote to memory of 2232	3180	7-Venom.exe	77
PID 3180 wrote to memory of 2232	3180	7-Venom.exe	77
PID 3180 wrote to memory of 2232	3180	7-Venom.exe	77
PID 2144 wrote to memory of 2392	2144	cmd.exe	78
PID 2144 wrote to memory of 2392	2144	cmd.exe	78
PID 2144 wrote to memory of 2392	2144	cmd.exe	78
PID 2232 wrote to memory of 3848	2232	cmd.exe	80
PID 2232 wrote to memory of 3848	2232	cmd.exe	80
PID 2232 wrote to memory of 3848	2232	cmd.exe	80

C:\Users\Admin\AppData\Local\Temp\7-Venom.exe
"C:\Users\Admin\AppData\Local\Temp\7-Venom.exe"
1⤵
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3180
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Windows Registry Handler" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\7-Venom.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:3660
- C:\Users\Admin\AppData\Roaming\bin\windowsrc.exe
  "C:\Users\Admin\AppData\Roaming\bin\windowsrc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:512
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Windows Registry Handler" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\bin\windowsrc.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:1340
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
    3⤵
    PID:2392
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XyXsUOzPlZxQ.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:3848

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/512-32-0x0000000006440000-0x0000000006441000-memory.dmp

Download

memory/512-13-0x0000000073560000-0x0000000073C4E000-memory.dmp

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memory/704-24-0x0000000007890000-0x0000000007891000-memory.dmp

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memory/704-27-0x0000000007FF0000-0x0000000007FF1000-memory.dmp

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memory/704-46-0x0000000009240000-0x0000000009241000-memory.dmp

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memory/704-44-0x0000000009250000-0x0000000009251000-memory.dmp

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memory/704-43-0x00000000092A0000-0x00000000092A1000-memory.dmp

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memory/704-42-0x0000000009110000-0x0000000009111000-memory.dmp

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memory/704-17-0x0000000073560000-0x0000000073C4E000-memory.dmp

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memory/704-19-0x00000000044D0000-0x00000000044D1000-memory.dmp

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memory/704-20-0x00000000070A0000-0x00000000070A1000-memory.dmp

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memory/704-21-0x0000000006F40000-0x0000000006F41000-memory.dmp

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memory/704-22-0x0000000007740000-0x0000000007741000-memory.dmp

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memory/704-41-0x0000000008D70000-0x0000000008D71000-memory.dmp

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memory/704-25-0x0000000007CE0000-0x0000000007CE1000-memory.dmp

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memory/704-26-0x0000000008140000-0x0000000008141000-memory.dmp

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memory/704-34-0x0000000008D90000-0x0000000008DC3000-memory.dmp

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memory/3180-0-0x0000000073560000-0x0000000073C4E000-memory.dmp

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memory/3180-6-0x0000000005E50000-0x0000000005E51000-memory.dmp

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memory/3180-7-0x0000000006A50000-0x0000000006A51000-memory.dmp

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memory/3180-5-0x00000000058E0000-0x00000000058E1000-memory.dmp

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memory/3180-4-0x0000000005980000-0x0000000005981000-memory.dmp

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memory/3180-3-0x0000000005E80000-0x0000000005E81000-memory.dmp

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memory/3180-1-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

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