asyncrat | 4451ec4774f723d28040c521ff532961684eda243782e5706f7bf1a9ca7afb1a

Analysis

max time kernel
146s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 20:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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-1-5-21-2872745919-2748461613-2989606286-1000\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 1992 set thread context of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31

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
1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31
PID 1992 wrote to memory of 2776	1992	JaffaCakes118_778fc62a8c897f275e44e36f494e2299.exe	31

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:1992
- 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:2776

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2776-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2776-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2776-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2776-9-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/2776-10-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/2776-11-0x0000000074650000-0x0000000074D3E000-memory.dmp

Filesize
6.9MB

Download
memory/2776-12-0x0000000074650000-0x0000000074D3E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads