asyncrat | 249f9bd035685660ae45fc4138334e744c30ce7e1038c140a98529b90c4270c5

Analysis

max time kernel
132s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:17

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General

Target

de41dac906b1f4218d2cf3e93d994af2.exe
Size

211KB
MD5

de41dac906b1f4218d2cf3e93d994af2
SHA1

f7f121a5c283da23bd6038119cefb56ffe956074
SHA256

4725aee3b6b9b01f81a1288d83f24a061adeea4a18a61e9255063900041ffa46
SHA512

1c165685801c23fd45f7ae28b4c3ea48fa9a354a47edf417d345573219ede67663174cbdf18fb202d0ba2b2495016f1c8be7d66be92337e1f0324cf56205998b
SSDEEP

6144:ShOGf/c6q4gHtLu3faUzPFzzGy2jt45JrzrnKpUsD4l:mf/c6rSK3faGX1r3lsD4l

Score

10^/10

asyncrat venom clients discovery execution persistence rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

103.125.217.116:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
install
false
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

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\chome_exe = "C:\\Users\\Admin\\Videos\\vlc\\swatdla trtvg.exe"	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2004	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1736 set thread context of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de41dac906b1f4218d2cf3e93d994af2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2004	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	powershell.exe
Token: SeDebugPrivilege	2168	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 2004	1736	de41dac906b1f4218d2cf3e93d994af2.exe	30
PID 1736 wrote to memory of 2004	1736	de41dac906b1f4218d2cf3e93d994af2.exe	30
PID 1736 wrote to memory of 2004	1736	de41dac906b1f4218d2cf3e93d994af2.exe	30
PID 1736 wrote to memory of 2004	1736	de41dac906b1f4218d2cf3e93d994af2.exe	30
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32
PID 1736 wrote to memory of 2168	1736	de41dac906b1f4218d2cf3e93d994af2.exe	32

C:\Users\Admin\AppData\Local\Temp\de41dac906b1f4218d2cf3e93d994af2.exe
"C:\Users\Admin\AppData\Local\Temp\de41dac906b1f4218d2cf3e93d994af2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'chome_exe';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'chome_exe' -Value '"C:\Users\Admin\Videos\vlc\swatdla trtvg.exe"' -PropertyType 'String'
  2⤵
  - Adds Run key to start application
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2004
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1736-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/1736-1-0x0000000000AF0000-0x0000000000B2A000-memory.dmp

Filesize
232KB

Download
memory/1736-2-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1736-3-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/1736-4-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1736-5-0x0000000000390000-0x00000000003AA000-memory.dmp

Filesize
104KB

Download
memory/1736-21-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2168-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-20-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2168-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-9-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2168-24-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download