venomrat | 084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df

Analysis

max time kernel
46s
max time network
132s
platform
windows7_x64
resource
win7v20201028
submitted
25-02-2021 00:39

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General

Target

084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
Size

534KB
MD5

cd23ce6c110005107495869d929afc33
SHA1

07586d2d9420c74a7339293ea56c54d12760f292
SHA256

084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df
SHA512

cdac414d720f8e7dd45cc30cd24b9eef91660ac673bc8a6ee120a37d71c23e2fbb4d8043af8f7be854702472ac5d3d955f6c40bd23363511ffd3064f8aecb482

Score

10^/10

venomrat evasion rat rootkit stealer trojan

Malware Config

Signatures

Contains code to disable Windows Defender 3 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/files/0x00050000000130fd-7.dat	disable_win_def
behavioral1/files/0x00050000000130fd-9.dat	disable_win_def
behavioral1/files/0x00050000000130fd-10.dat	disable_win_def

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
1272	rundll.exe

Loads dropped DLL 1 IoCs

pid	Process
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.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	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.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
2	ip-api.com

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

System Information Discovery
T1082

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
1216	schtasks.exe
300	schtasks.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1552	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
288	powershell.exe
288	powershell.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
1596	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
Token: SeDebugPrivilege	288	powershell.exe
Token: SeDebugPrivilege	1272	rundll.exe
Token: SeDebugPrivilege	1272	rundll.exe
Token: SeDebugPrivilege	1596	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1272	rundll.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1216	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	30
PID 1724 wrote to memory of 1216	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	30
PID 1724 wrote to memory of 1216	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	30
PID 1724 wrote to memory of 1216	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	30
PID 1724 wrote to memory of 1272	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	32
PID 1724 wrote to memory of 1272	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	32
PID 1724 wrote to memory of 1272	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	32
PID 1724 wrote to memory of 1272	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	32
PID 1724 wrote to memory of 288	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	33
PID 1724 wrote to memory of 288	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	33
PID 1724 wrote to memory of 288	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	33
PID 1724 wrote to memory of 288	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	33
PID 1272 wrote to memory of 300	1272	rundll.exe	35
PID 1272 wrote to memory of 300	1272	rundll.exe	35
PID 1272 wrote to memory of 300	1272	rundll.exe	35
PID 1272 wrote to memory of 300	1272	rundll.exe	35
PID 1724 wrote to memory of 1016	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	37
PID 1724 wrote to memory of 1016	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	37
PID 1724 wrote to memory of 1016	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	37
PID 1724 wrote to memory of 1016	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	37
PID 1016 wrote to memory of 1340	1016	cmd.exe	39
PID 1016 wrote to memory of 1340	1016	cmd.exe	39
PID 1016 wrote to memory of 1340	1016	cmd.exe	39
PID 1016 wrote to memory of 1340	1016	cmd.exe	39
PID 1724 wrote to memory of 332	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	40
PID 1724 wrote to memory of 332	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	40
PID 1724 wrote to memory of 332	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	40
PID 1724 wrote to memory of 332	1724	084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe	40
PID 332 wrote to memory of 1580	332	cmd.exe	42
PID 332 wrote to memory of 1580	332	cmd.exe	42
PID 332 wrote to memory of 1580	332	cmd.exe	42
PID 332 wrote to memory of 1580	332	cmd.exe	42
PID 332 wrote to memory of 1552	332	cmd.exe	43
PID 332 wrote to memory of 1552	332	cmd.exe	43
PID 332 wrote to memory of 1552	332	cmd.exe	43
PID 332 wrote to memory of 1552	332	cmd.exe	43
PID 332 wrote to memory of 1596	332	cmd.exe	44
PID 332 wrote to memory of 1596	332	cmd.exe	44
PID 332 wrote to memory of 1596	332	cmd.exe	44
PID 332 wrote to memory of 1596	332	cmd.exe	44

C:\Users\Admin\AppData\Local\Temp\084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
"C:\Users\Admin\AppData\Local\Temp\084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe"
1⤵
- Loads dropped DLL
- Windows security modification
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "sc4" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:1216
- C:\Users\Admin\AppData\Roaming\sc\rundll.exe
  "C:\Users\Admin\AppData\Roaming\sc\rundll.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1272
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "sc4" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\sc\rundll.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:300
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:288
- 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:1016
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
    3⤵
    PID:1340
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\m5iuEOso2JwI.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:332
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:1580
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 10 localhost
    3⤵
    - Runs ping.exe
    PID:1552
- - C:\Users\Admin\AppData\Local\Temp\084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\084a9940f85047be896b1bb1769bd667cef30d15920d61bfc0728d8d87b839df.bin.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1596

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

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/288-22-0x0000000004710000-0x0000000004711000-memory.dmp

Filesize
4KB

Download
memory/288-27-0x0000000005630000-0x0000000005631000-memory.dmp

Filesize
4KB

Download
memory/288-57-0x00000000062F0000-0x00000000062F1000-memory.dmp

Filesize
4KB

Download
memory/288-56-0x00000000062A0000-0x00000000062A1000-memory.dmp

Filesize
4KB

Download
memory/288-49-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/288-41-0x00000000055F0000-0x00000000055F1000-memory.dmp

Filesize
4KB

Download
memory/288-15-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/288-16-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/288-17-0x0000000000980000-0x0000000000981000-memory.dmp

Filesize
4KB

Download
memory/288-40-0x0000000006220000-0x0000000006221000-memory.dmp

Filesize
4KB

Download
memory/288-18-0x0000000004820000-0x0000000004821000-memory.dmp

Filesize
4KB

Download
memory/288-20-0x00000000047E0000-0x00000000047E1000-memory.dmp

Filesize
4KB

Download
memory/288-21-0x00000000047E2000-0x00000000047E3000-memory.dmp

Filesize
4KB

Download
memory/288-33-0x0000000005770000-0x0000000005771000-memory.dmp

Filesize
4KB

Download
memory/288-32-0x0000000005730000-0x0000000005731000-memory.dmp

Filesize
4KB

Download
memory/288-24-0x0000000005260000-0x0000000005261000-memory.dmp

Filesize
4KB

Download
memory/1272-13-0x0000000001020000-0x0000000001021000-memory.dmp

Filesize
4KB

Download
memory/1272-12-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/1272-19-0x0000000004890000-0x0000000004891000-memory.dmp

Filesize
4KB

Download
memory/1596-65-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/1596-68-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/1724-5-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/1724-2-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/1724-3-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download