asyncrat | 1dde63915d6e87231714aa77ef148a00e6d132e459480149cb8043abf8cad6f6

Analysis

max time kernel
142s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
03-07-2023 01:26

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General

Target

45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe
Size

204KB
MD5

7f34748d9786ac7985443d3eb6593a44
SHA1

9bfecba5843e49407541a6427e94f9010565cb52
SHA256

45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5
SHA512

c39565437db0e5cf612319c179187ade1429e0144dfefc42f1b7e9761de728566d681ebeae1f6d0da943b6d0d99d0c2d4a9db6fa219b534a81502222cdf505a3
SSDEEP

3072:KYS+DY7uoRdJ1+r79880ejQi9+DijH5KDDvJpVolHSyjqJLyC3ETz9V3:O+DY7uoRcQiKDvuqZl3Et

Score

10^/10

asyncrat rat

Malware Config

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1952-133-0x0000000000060000-0x0000000000096000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-508929744-1894537824-211734425-1000\Control Panel\International\Geo\Nation	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1344	schtasks.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	456	Monitor.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 1344	1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe	85
PID 1952 wrote to memory of 1344	1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe	85
PID 1952 wrote to memory of 1344	1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe	85
PID 1952 wrote to memory of 456	1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe	87
PID 1952 wrote to memory of 456	1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe	87
PID 1952 wrote to memory of 456	1952	45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe	87

C:\Users\Admin\AppData\Local\Temp\45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe
"C:\Users\Admin\AppData\Local\Temp\45a8cdb6f9624db32b278982d2964a8cbdaefb78786c01d5e701b7f9a7faffe5.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /tn "TempMonitor" /tr "C:\Users\Admin\AppData\Local\TempMonitor\Monitor\Monitor.exe" /st 01:31 /sc minute /f
  2⤵
  - Creates scheduled task(s)
  PID:1344
- C:\Users\Admin\AppData\Local\TempMonitor\Monitor\Monitor.exe
  "C:\Users\Admin\AppData\Local\TempMonitor\Monitor\Monitor.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/456-135-0x0000000004EE0000-0x0000000004F46000-memory.dmp

Filesize
408KB

Download
memory/456-136-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/456-137-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/1952-133-0x0000000000060000-0x0000000000096000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads