asyncrat | 19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190

General

Target

19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe
Size

1.3MB
MD5

e60b4a9e303e2defab24d4566a58dddb
SHA1

07a47b7e033f4b890a1e0818d6bb947ad9e316a8
SHA256

19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190
SHA512

d4b8654a253263f0bf14ee594cad1904c8b4a6fe60b46c3e3585686f66be21c73982a26bd4dceb0da8699a9ae8f34a2a4aa299522003c961a0416d01eeb61008
SSDEEP

12288:B70JgEvMTUC/Nqg9t5l7w4VsTpPeViEXOOOOL0OOOOOOOMOvIX+OOOIbOl5OOOO0:QkTUQFtDEE+pGkWovdWXtQyMgw/kR5

Score

10^/10

asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Mutex

Aakn1515knAakn1515kn!

Attributes

c2_url_file
http://update-checker-status.cc/OCB-Async.txt
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\StreamGameVideo\\VPN.exe\","	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2108 set thread context of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe
2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe
Token: SeDebugPrivilege	3032	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31
PID 2108 wrote to memory of 3032	2108	19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe	31

C:\Users\Admin\AppData\Local\Temp\19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe
"C:\Users\Admin\AppData\Local\Temp\19244b433c67d8caf9e6653ea560c53b7f0b716007cae6b5e95e629c367ba190.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2108-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/2108-1-0x00000000008B0000-0x0000000000A0C000-memory.dmp

Filesize
1.4MB

Download
memory/2108-2-0x0000000004380000-0x00000000043F6000-memory.dmp

Filesize
472KB

Download
memory/2108-4-0x00000000006A0000-0x00000000006EC000-memory.dmp

Filesize
304KB

Download
memory/2108-3-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-17-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3032-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3032-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3032-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3032-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3032-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3032-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3032-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads