asyncrat | 4d5b4eea780ab2393d06f02fc1a6b5f3c490ddd8d768271b7534b75072aaf023

Analysis

max time kernel
135s
max time network
147s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24-07-2024 07:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe
Size

438KB
MD5

6ab6671c9fbba06f36bf4f655d03f498
SHA1

02cb1d74714793c5ec3702ca3afbeb45ee7c0588
SHA256

4d5b4eea780ab2393d06f02fc1a6b5f3c490ddd8d768271b7534b75072aaf023
SHA512

275251629f1022d9cb330d4e91b614b871892e1a0cebaa533275dca0f3e6558316c039469bb5ce12f2807638bff23e7ef8c93933bd2a463d0f361922ed8f356d
SSDEEP

3072:ySgW8stAeW4guBOvffu6Em5sK4gMs4oFT89lwYX7aVKiEgQ0evwqdV1cxCc8:ZgW8CGu6/yKLLFTKEVKiEg78jcxJ8

Score

10^/10

asyncrat 18 discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

185.157.160.136:1973

Mutex

df4Rtg34dFjwr

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat 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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\audac = "C:\\Users\\Admin\\AppData\\Roaming\\auda\\audab.exe"	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.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	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31
PID 2808 wrote to memory of 2176	2808	6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6ab6671c9fbba06f36bf4f655d03f498_JaffaCakes118.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:2808
- 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:2176

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/2176-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2176-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2176-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads