asyncrat | 4451ec4774f723d28040c521ff532961684eda243782e5706f7bf1a9ca7afb1a

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 20:25

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General

Target

JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe
Size

617KB
MD5

778fc62a8c897f275e44e36f494e2299
SHA1

0e01030f9c8b468663d256179bd9a3a44a6d1445
SHA256

4451ec4774f723d28040c521ff532961684eda243782e5706f7bf1a9ca7afb1a
SHA512

e41a4e681c53949d6deb1f1f13201a4af39232a6c4eb8ca61b6017838604c9643f59f6363354e1a597678acd8b35bd99dcb69264f5a248d76a6895f14ecc0e1b
SSDEEP

6144:dC4w8juap56y9dg4sIo9ZCf6YRZDYnDSb+Ox72aR914w6Fs2gVKiEgNaratgMb:Ynapvg4sz9dYRZsDy+M70sdpEmar3Mb

Score

10^/10

asyncrat 1 discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

185.157.160.136:1973

Mutex

df4Rtg34dFjwr7ujp3

Attributes

delay
38
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rka = "C:\\Users\\Admin\\AppData\\Roaming\\rga\\rpa.exe"	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4664 set thread context of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85

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	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 4360	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	84
PID 4664 wrote to memory of 4360	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	84
PID 4664 wrote to memory of 4360	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	84
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85
PID 4664 wrote to memory of 2388	4664	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:4360
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2388-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2388-5-0x000000007488E000-0x000000007488F000-memory.dmp

Filesize
4KB

Download
memory/2388-6-0x000000007488E000-0x000000007488F000-memory.dmp

Filesize
4KB

Download
memory/2388-7-0x0000000074880000-0x0000000075030000-memory.dmp

Filesize
7.7MB

Download
memory/2388-8-0x0000000074880000-0x0000000075030000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads