asyncrat | d560e0f020e5ffa88111a40e79c6e9e1f95e308b1a0b8edc5eb4d4bdc655f828

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-12-2024 16:58

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General

Target

Stub.exe
Size

50KB
MD5

bd6a376c90eadf8195a9fbb675f20f0f
SHA1

b320e1cea5643e6d6fc35041964dec0b3ada79c9
SHA256

d560e0f020e5ffa88111a40e79c6e9e1f95e308b1a0b8edc5eb4d4bdc655f828
SHA512

f00395b176efbf4de17820f84bd29b157b2074a9822753fe4f5ab69ce46dcac20116d83089f19277bf98b7db900e62422f07f4a26975fbd061026114a7dd7b47
SSDEEP

768:nyj6J8AtszpNXd4UDfeSTc0DPHBFUIzDBoff8BNB3aeb1Qd3kAK64DVFLf+:nEK8AtIHFSSTTDBfFhCebudUAXaFLf+

Score

10^/10

asyncrat discovery rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2052	2092	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	Stub.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2092	Stub.exe
2092	Stub.exe
2092	Stub.exe
2092	Stub.exe
2092	Stub.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	Stub.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2052	2092	Stub.exe	30
PID 2092 wrote to memory of 2052	2092	Stub.exe	30
PID 2092 wrote to memory of 2052	2092	Stub.exe	30
PID 2092 wrote to memory of 2052	2092	Stub.exe	30

C:\Users\Admin\AppData\Local\Temp\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 628
  2⤵
  - Program crash
  PID:2052

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/2092-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/2092-1-0x0000000001070000-0x0000000001082000-memory.dmp

Filesize
72KB

Download
memory/2092-2-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-3-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download