asyncrat | a1d8230807e2247c48b5c732ab306ed66c6db923f21d9c50a0508a1cf1e03193

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 08:02

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General

Target

JaffaCakes118_0cb84ba13936d8dcbc4fdd891932243f.dll
Size

61KB
MD5

0cb84ba13936d8dcbc4fdd891932243f
SHA1

756348d07f38f9dea09962a07a8ff6bf671daace
SHA256

a1d8230807e2247c48b5c732ab306ed66c6db923f21d9c50a0508a1cf1e03193
SHA512

3cd5770fbb17b35012ad930fdc53a6358d6da320dcc4dd67ff1cd27f07f05ccb1762c80c9b67b44a9d97b3d87bad60893c2a3434eff80ff232a4da3778430039
SSDEEP

1536:CuWIiKAPnPMspbQ628QA8VdN6r4PEYiqlgGdKDwlGlB6519Wd0es:wIfwnPMspM6DsdNdEYV2wL519m0e

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

Botnet

Default

172.30.1.10:7707

Mutex

ifgybnendzqduj

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 3564 set thread context of 4624	3564	rundll32.exe	84

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 3564	3652	rundll32.exe	83
PID 3652 wrote to memory of 3564	3652	rundll32.exe	83
PID 3652 wrote to memory of 3564	3652	rundll32.exe	83
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84
PID 3564 wrote to memory of 4624	3564	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0cb84ba13936d8dcbc4fdd891932243f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0cb84ba13936d8dcbc4fdd891932243f.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3564
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4624

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/4624-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4624-1-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/4624-2-0x0000000074280000-0x0000000074A30000-memory.dmp

Filesize
7.7MB

Download
memory/4624-3-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/4624-4-0x0000000074280000-0x0000000074A30000-memory.dmp

Filesize
7.7MB

Download