asyncrat | 175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010

Resubmissions

06-01-2025 18:42

250106-xcbx8atqby 10

06-01-2025 18:37

250106-w9w4zstpdz 10

Analysis

max time kernel
11s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
06-01-2025 18:42

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General

Target

175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe
Size

492KB
MD5

03675c1d7bd0f0dd4f91a4d86249a69a
SHA1

13acf91b9467df368059be73f3448d4d49b637e4
SHA256

175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010
SHA512

138fb15c2411f233b39b652d51b0901d686d78fd5e85cabd4559d672b084a4febbf67726f334eaaa2514f0aa75d2b2e5758336a29483521c0cf9ca740e79e334
SSDEEP

12288:VdR/L2wA8UePh0KtiKZ6Jk6J9aQqAmkeyI8b9M:dL3AfeqnazAmtyI8b9M

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

8.218.196.187:4449

127.0.0.1:4449

Mutex

vidjpdoqlri

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3700 set thread context of 2900	3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe	77

System Location Discovery: System Language Discovery 1 TTPs 2 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	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2900	regasm.exe
2900	regasm.exe
2900	regasm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	regasm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe
2900	regasm.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 2900	3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe	77
PID 3700 wrote to memory of 2900	3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe	77
PID 3700 wrote to memory of 2900	3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe	77
PID 3700 wrote to memory of 2900	3700	175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe	77

C:\Users\Admin\AppData\Local\Temp\175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe
"C:\Users\Admin\AppData\Local\Temp\175b9ab6fec60b890beea9ee142ce6cedc00d213ab8bf95b129d690061388010.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3700
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/2900-9-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2900-11-0x0000000005E80000-0x0000000006426000-memory.dmp

Filesize
5.6MB

Download
memory/2900-17-0x0000000005C80000-0x0000000005C8A000-memory.dmp

Filesize
40KB

Download
memory/2900-5-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2900-7-0x0000000077844000-0x0000000077845000-memory.dmp

Filesize
4KB

Download
memory/2900-8-0x00000000013C0000-0x00000000013C1000-memory.dmp

Filesize
4KB

Download
memory/2900-16-0x0000000074430000-0x0000000074BE1000-memory.dmp

Filesize
7.7MB

Download
memory/2900-15-0x0000000005CB0000-0x0000000005D42000-memory.dmp

Filesize
584KB

Download
memory/2900-14-0x0000000074430000-0x0000000074BE1000-memory.dmp

Filesize
7.7MB

Download
memory/2900-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3700-13-0x0000000002C90000-0x0000000002C98000-memory.dmp

Filesize
32KB

Download
memory/3700-2-0x0000000077844000-0x0000000077845000-memory.dmp

Filesize
4KB

Download
memory/3700-3-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/3700-4-0x0000000002C90000-0x0000000002C98000-memory.dmp

Filesize
32KB

Download