asyncrat | 0ffd5b54317e01a658684577fee5d5c5f53d5b2e105e7cf8c1cdfd9bd8fee780

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
04/03/2025, 00:51

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General

Target

157a3f7a20b22e78c4d3f7ea88538ff7.exe
Size

88KB
MD5

157a3f7a20b22e78c4d3f7ea88538ff7
SHA1

5289f49becfab4122f62ac5dc5f4ed4a6430d1e3
SHA256

0ffd5b54317e01a658684577fee5d5c5f53d5b2e105e7cf8c1cdfd9bd8fee780
SHA512

cd517f17d8253dfd8681fce97eaf5f591b8a7427cea2de132d68e1bc047227c287e9d5b11890e16503cf730d52c1117a5312b506ddcca4e223413f271f79f652
SSDEEP

1536:fMQTBX+ACkkNQDm4KWtVeZJmDKmVBo2wJhtycPPsahIP7fsLt/vO35T:fMuzFkeS47tgJeKmfoBJhNPsahIP7fsy

Score

10^/10

asyncrat 1 discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

164.92.163.239:3898

Mutex

AbDUeHz1cUxL

Attributes

delay
3
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 2148 set thread context of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88

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	157a3f7a20b22e78c4d3f7ea88538ff7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88
PID 2148 wrote to memory of 1692	2148	157a3f7a20b22e78c4d3f7ea88538ff7.exe	88

C:\Users\Admin\AppData\Local\Temp\157a3f7a20b22e78c4d3f7ea88538ff7.exe
"C:\Users\Admin\AppData\Local\Temp\157a3f7a20b22e78c4d3f7ea88538ff7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #system32
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1692

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/1692-6-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/1692-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1692-7-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/1692-10-0x0000000005580000-0x000000000561C000-memory.dmp

Filesize
624KB

Download
memory/1692-12-0x0000000005690000-0x00000000056F6000-memory.dmp

Filesize
408KB

Download
memory/1692-11-0x0000000005BD0000-0x0000000006174000-memory.dmp

Filesize
5.6MB

Download
memory/1692-13-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/1692-14-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/2148-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2148-1-0x00000000007A0000-0x00000000007BC000-memory.dmp

Filesize
112KB

Download
memory/2148-4-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/2148-5-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download