asyncrat | 20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-08-2024 01:06

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General

Target

20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe
Size

577KB
MD5

b98dc1d3907a29896233f92a1f91cc15
SHA1

daf5fa345ab29376c10ada6065f4e77526e8b531
SHA256

20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03
SHA512

a387a75cdb72537458e692e2339ed0840d7a4ffec390becd5175e142f10467c8e67c8c268b682b5c9d05facbdd1164c1d35875994b1b2398fca4578256bd6c90
SSDEEP

3072:COsA++eZfkec3uppruBjYP2+t9deQ+rjnCvulC7/X3UcrBw5KPA:vsA++eFfniB853eQ+rTCvNxrCKP

Score

10^/10

asyncrat 591_grebe discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

591_GreBe

89.105.201.98:591

Mutex

NJ1234dfffddfddfdfKJHYGTGYHUJIKOuy7t6r5er6t7y98u0iH&GYFTRCVGBHU9u8y7T^R%DFTYG&UHJ(K)_

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4632 set thread context of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91

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	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe
4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91
PID 4632 wrote to memory of 2336	4632	20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe	91

C:\Users\Admin\AppData\Local\Temp\20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe
"C:\Users\Admin\AppData\Local\Temp\20e9ad367dd61cf76d9aa1bd6993cf2c6a289b433d44fb445b0fb6d8a634fd03.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336

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/2336-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2336-19-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/2336-18-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/2336-16-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4632-8-0x0000000007D10000-0x0000000007D1A000-memory.dmp

Filesize
40KB

Download
memory/4632-11-0x000000000A2B0000-0x000000000A2B6000-memory.dmp

Filesize
24KB

Download
memory/4632-6-0x000000000A690000-0x000000000AC34000-memory.dmp

Filesize
5.6MB

Download
memory/4632-7-0x00000000077D0000-0x0000000007862000-memory.dmp

Filesize
584KB

Download
memory/4632-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/4632-9-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4632-10-0x000000000A280000-0x000000000A29A000-memory.dmp

Filesize
104KB

Download
memory/4632-5-0x0000000004D30000-0x0000000004D36000-memory.dmp

Filesize
24KB

Download
memory/4632-12-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/4632-13-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4632-4-0x0000000007970000-0x0000000007C32000-memory.dmp

Filesize
2.8MB

Download
memory/4632-3-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4632-17-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4632-2-0x0000000005370000-0x000000000540C000-memory.dmp

Filesize
624KB

Download
memory/4632-1-0x00000000006D0000-0x0000000000766000-memory.dmp

Filesize
600KB

Download