asyncrat | 3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca

General

Target

3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe
Size

491KB
MD5

12d200d7d82b3c47cd702cb09f7424fa
SHA1

2da9a07a081dcd9cf68bfebf39ab6ca0a22bae76
SHA256

3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca
SHA512

b418ca46bfe47eee7b8c5da29d0a80113c6264ba282e4c78783e870fc241ab431cb8427a2723f63a9749cd2b766405acf997c85501e4a18f17484d40c3f4f8c5
SSDEEP

12288:byrjnZPxkyx8gmoYSZtIEOZU8HocYnKrTSOk:baPx9dtIEOZU+ochGD

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

202.55.133.118:5200

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe
2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2996	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	31
PID 2808 wrote to memory of 2996	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	31
PID 2808 wrote to memory of 2996	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	31
PID 2808 wrote to memory of 2996	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	31
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33
PID 2808 wrote to memory of 1684	2808	3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe	33

C:\Users\Admin\AppData\Local\Temp\3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe
"C:\Users\Admin\AppData\Local\Temp\3c84eb6288d0e34439ff33bf52446d8d24651f57d1da51e1dd0de3c9a8e3b9ca.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yywxphKidVZnL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5E3.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2996
- 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:1684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1684-27-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/1684-22-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1684-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1684-29-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/1684-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1684-26-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1684-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1684-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1684-30-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/1684-28-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/1684-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1684-20-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2808-6-0x0000000000740000-0x0000000000776000-memory.dmp

Filesize
216KB

Download
memory/2808-1-0x00000000009C0000-0x0000000000A42000-memory.dmp

Filesize
520KB

Download
memory/2808-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2808-25-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2808-3-0x0000000000430000-0x0000000000446000-memory.dmp

Filesize
88KB

Download
memory/2808-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads