asyncrat | 7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f

Analysis

max time kernel
144s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
01/06/2024, 04:45

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General

Target
7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe
Size 204KB
Sample240601-fdlqdaah99
SHA256 7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f
MD5 a13c1ec24d6b087a6ac188b0fd254178
SHA1 fbe22171427327ec23240f5bc9896854110f360a
SHA512 1ab541db748b8817e069d1ff73037e606f2913a57078e2080d60a1fbdb108d7d5b7698b10304ea271a48493432b20a14ac464fa584c0fa6bea27d7c78369acf5
SSDEEP 6144:xwNoDdeAXRBEKws40lwQv/Xs/Vs7TCh5j:xwNgdXeslzXs/Vs7Oh
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

192.168.1.2:1800

Mutex

DcRatMutex_qwqdanchun

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 1788 set thread context of 3728	1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1272	1788	WerFault.exe	78

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	1	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 3728	1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe	80
PID 1788 wrote to memory of 3728	1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe	80
PID 1788 wrote to memory of 3728	1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe	80
PID 1788 wrote to memory of 3728	1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe	80
PID 1788 wrote to memory of 3728	1788	7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe	80

C:\Users\Admin\AppData\Local\Temp\7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe
"C:\Users\Admin\AppData\Local\Temp\7b7f9647dbc512c0f9857332b181991b1e8f6b1ab0634f31d8612ee483d2933f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  -arguments
  2⤵
  PID:3728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 920
  2⤵
  - Program crash
  PID:1272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1788 -ip 1788
1⤵
PID:952

Network

MITRE ATT&CK Matrix

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Downloads

memory/3728-2-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/3728-7-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Download

memory/3728-8-0x0000000074A20000-0x00000000751D1000-memory.dmp

Download

memory/3728-9-0x0000000074A20000-0x00000000751D1000-memory.dmp

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads