asyncrat | 43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3e

Analysis

max time kernel
119s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/12/2024, 19:17

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe
Size

1.2MB
MD5

12951f46b2d287385d24a0c82ea43a80
SHA1

d27958ef96914e362a331a02d83df46adc72186d
SHA256

43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3e
SHA512

b68662f343be4c0be032d2968d6b4b143bcf488b9269491ae788a7203a7cbe495ae0cf7737d22961861bd496ef988b00af69540ab9966338c77e325ddafb62c7
SSDEEP

12288:AKLxSjolGKx7m6G1oKg4i4+gFpc0DflqZT6xuL2+MMh00BB6F5wjecCBXOyFLXTd:AcB8ggg0szL2dMVBQwv4XOylc6fpU0

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

Fa2MTRiy4iTE

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
Asyncrat family
asyncrat

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral1/memory/2104-1-0x0000000001200000-0x000000000132A000-memory.dmp	net_reactor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30

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	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30
PID 2104 wrote to memory of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30
PID 2104 wrote to memory of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30
PID 2104 wrote to memory of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30
PID 2104 wrote to memory of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30
PID 2104 wrote to memory of 2384	2104	43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe	30

C:\Users\Admin\AppData\Local\Temp\43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe
"C:\Users\Admin\AppData\Local\Temp\43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe
  C:\Users\Admin\AppData\Local\Temp\43e6df142414602e15aa6486ce3f3c21523d862534ed7f86cab4f7b8b637fb3eN.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384

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

Loading Replay Monitor...

Downloads

memory/2104-0-0x00000000743BE000-0x00000000743BF000-memory.dmp

Filesize
4KB

Download
memory/2104-1-0x0000000001200000-0x000000000132A000-memory.dmp

Filesize
1.2MB

Download
memory/2104-2-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2104-3-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2104-23-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2104-22-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2384-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2384-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2384-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2384-24-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2384-25-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2384-26-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/2384-27-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download