asyncrat | dcb9b3bd02e4bca6dab8da73cfe8ff256cf70b2fef9aebd35f9c860b2e1df60e

General

Target

VenomRATv6.0.3.exe
Size

14.3MB
MD5

674fb9de862cbbb47a6ab5a7adb91d7e
SHA1

5895e99a1cb66771735bb93d6fc85110d064ac88
SHA256

dcb9b3bd02e4bca6dab8da73cfe8ff256cf70b2fef9aebd35f9c860b2e1df60e
SHA512

444d9c6519c1564520a93ca49edf1a7bb742043f53bcf3cb6fe7ae5561253515f39aa197cb39d10a140ac2fdf3b4986034d9f6f2264000965bd2eba94ec99602
SSDEEP

393216:vPv87RoDvSCG33lKqxsyEFfy1MpRt/RlY1V:vPv8727S/nweEFPRt5W1V

Score

10^/10

asyncrat venomrat xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:4444

heheyanel.ddns.net:4444

Attributes

Install_directory
%ProgramData%
install_file
Activator.exe
telegram
https://api.telegram.org/bot7427144754:AAHRLM93AsaKo2dFejmZxunuQW0uH41yfn0/sendMessage?chat_id=7294780361

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b85-16.dat	family_xworm
behavioral2/memory/4216-25-0x00000000006F0000-0x000000000070A000-memory.dmp	family_xworm

VenomRAT 2 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/files/0x000c000000023b7e-6.dat	VenomRAT
behavioral2/memory/660-26-0x000001C3D75F0000-0x000001C3D8424000-memory.dmp	VenomRAT

Venomrat family
venomrat
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2904	powershell.exe
2720	powershell.exe
3068	powershell.exe
1756	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	VenomRATv6.0.3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	venom.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	venom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	venom.exe

Executes dropped EXE 4 IoCs

pid	Process
660	Venom RAT + HVNC + Stealer + Grabber.exe
4216	venom.exe
3228	svchost
2724	svchost

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\ProgramData\\svchost"	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
13	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3168	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2720	powershell.exe
2720	powershell.exe
3068	powershell.exe
3068	powershell.exe
1756	powershell.exe
1756	powershell.exe
2904	powershell.exe
2904	powershell.exe
4216	venom.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4216	venom.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	2904	powershell.exe
Token: SeDebugPrivilege	4216	venom.exe
Token: SeDebugPrivilege	3228	svchost
Token: SeDebugPrivilege	2724	svchost

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4216	venom.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 660	4712	VenomRATv6.0.3.exe	83
PID 4712 wrote to memory of 660	4712	VenomRATv6.0.3.exe	83
PID 4712 wrote to memory of 4216	4712	VenomRATv6.0.3.exe	84
PID 4712 wrote to memory of 4216	4712	VenomRATv6.0.3.exe	84
PID 4216 wrote to memory of 2720	4216	venom.exe	89
PID 4216 wrote to memory of 2720	4216	venom.exe	89
PID 4216 wrote to memory of 3068	4216	venom.exe	91
PID 4216 wrote to memory of 3068	4216	venom.exe	91
PID 4216 wrote to memory of 1756	4216	venom.exe	93
PID 4216 wrote to memory of 1756	4216	venom.exe	93
PID 4216 wrote to memory of 2904	4216	venom.exe	95
PID 4216 wrote to memory of 2904	4216	venom.exe	95
PID 4216 wrote to memory of 3168	4216	venom.exe	97
PID 4216 wrote to memory of 3168	4216	venom.exe	97

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\VenomRATv6.0.3.exe
"C:\Users\Admin\AppData\Local\Temp\VenomRATv6.0.3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Users\Admin\AppData\Roaming\Venom RAT + HVNC + Stealer + Grabber.exe
  "C:\Users\Admin\AppData\Roaming\Venom RAT + HVNC + Stealer + Grabber.exe"
  2⤵
  - Executes dropped EXE
  PID:660
- C:\Users\Admin\AppData\Roaming\venom.exe
  "C:\Users\Admin\AppData\Roaming\venom.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\venom.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2720
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'venom.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3068
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svchost'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1756
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2904
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\ProgramData\svchost"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3168

C:\ProgramData\svchost
C:\ProgramData\svchost
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3228

C:\ProgramData\svchost
C:\ProgramData\svchost
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
5cfe303e798d1cc6c1dab341e7265c15

SHA1
cd2834e05191a24e28a100f3f8114d5a7708dc7c

SHA256
c4d16552769ca1762f6867bce85589c645ac3dc490b650083d74f853f898cfab

SHA512
ef151bbe0033a2caf2d40aff74855a3f42c8171e05a11c8ce93c7039d9430482c43fe93d9164ee94839aff253cad774dbf619dde9a8af38773ca66d59ac3400e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
60945d1a2e48da37d4ce8d9c56b6845a

SHA1
83e80a6acbeb44b68b0da00b139471f428a9d6c1

SHA256
314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

SHA512
5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w3atz3au.z5d.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Venom RAT + HVNC + Stealer + Grabber.exe

Filesize
14.2MB

MD5
3b3a304c6fc7a3a1d9390d7cbff56634

SHA1
e8bd5244e6362968f5017680da33f1e90ae63dd7

SHA256
7331368c01b2a16bda0f013f376a039e6aeb4cb2dd8b0c2afc7ca208fb544c58

SHA512
7f1beacb6449b3b3e108016c8264bb9a21ecba526c2778794f16a7f9c817c0bbd5d4cf0c208d706d25c54322a875da899ab047aab1e07684f6b7b6083981abe5

Download Submit
C:\Users\Admin\AppData\Roaming\venom.exe

Filesize
81KB

MD5
ac5c47b2a86a3042f02e26a338e99466

SHA1
98e8c13d41179575145cdc800e603b467c2b18f1

SHA256
837d509ad49a587036361ee7fc30f5b18238bb98a310418298b5a6c1d350cb96

SHA512
8468268c03c0e286fdd767f961e90ade962ee46b8e12eddbb3204e77aa26475add2a8d8e61e6c8dd08952a0571942915b926192b34029155489813221d7135b3

Download Submit
memory/660-26-0x000001C3D75F0000-0x000001C3D8424000-memory.dmp

Filesize
14.2MB

Download
memory/660-29-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/660-27-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/2720-40-0x00000207B96C0000-0x00000207B96E2000-memory.dmp

Filesize
136KB

Download
memory/4216-30-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/4216-28-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/4216-25-0x00000000006F0000-0x000000000070A000-memory.dmp

Filesize
104KB

Download
memory/4216-80-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/4216-81-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/4712-0-0x00007FFB5E6D3000-0x00007FFB5E6D5000-memory.dmp

Filesize
8KB

Download
memory/4712-1-0x0000000000370000-0x00000000011BE000-memory.dmp

Filesize
14.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads