asyncrat | 068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
30-07-2024 07:39

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General

Target

5393855b310e160d5643744a5ad1cc91.exe
Size

131KB
MD5

5393855b310e160d5643744a5ad1cc91
SHA1

a2b4b4504f1f272e33b18a6fbb98f4e5c0c371f2
SHA256

068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1
SHA512

ab1b87b32f79559b1d9756f982c8f992f86e0554de57abe19c6b5567ce0bd3c4cd275d0f3aa1a41c9ac18ea49f265f85d5a94967e0240cf840a8f779bbbd6b85
SSDEEP

3072:vWayOLin02remkN7l5cZcLVSZhYoCL26+9P46yf8GOrOfm:v3yOmBr0yyfi7NNy

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

85.28.47.123:7707

Mutex

QTApl4idKp8T

Attributes

delay
3
install
false
install_file
microsoftedge.exe
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 1932 set thread context of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86

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	5393855b310e160d5643744a5ad1cc91.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1932	5393855b310e160d5643744a5ad1cc91.exe
1932	5393855b310e160d5643744a5ad1cc91.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1932	5393855b310e160d5643744a5ad1cc91.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1932 wrote to memory of 4260	1932	5393855b310e160d5643744a5ad1cc91.exe	84
PID 1932 wrote to memory of 4260	1932	5393855b310e160d5643744a5ad1cc91.exe	84
PID 1932 wrote to memory of 4260	1932	5393855b310e160d5643744a5ad1cc91.exe	84
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86
PID 1932 wrote to memory of 2512	1932	5393855b310e160d5643744a5ad1cc91.exe	86

C:\Users\Admin\AppData\Local\Temp\5393855b310e160d5643744a5ad1cc91.exe
"C:\Users\Admin\AppData\Local\Temp\5393855b310e160d5643744a5ad1cc91.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1932
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4260
- 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
  PID:2512

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/1932-0-0x00000000747BE000-0x00000000747BF000-memory.dmp

Filesize
4KB

Download
memory/1932-1-0x0000000000D00000-0x0000000000D28000-memory.dmp

Filesize
160KB

Download
memory/1932-2-0x00000000747B0000-0x0000000074F60000-memory.dmp

Filesize
7.7MB

Download
memory/1932-5-0x00000000747B0000-0x0000000074F60000-memory.dmp

Filesize
7.7MB

Download
memory/2512-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2512-6-0x00000000747B0000-0x0000000074F60000-memory.dmp

Filesize
7.7MB

Download
memory/2512-7-0x00000000747B0000-0x0000000074F60000-memory.dmp

Filesize
7.7MB

Download
memory/2512-8-0x00000000747B0000-0x0000000074F60000-memory.dmp

Filesize
7.7MB

Download