asyncrat | 4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798

General

Target

4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe
Size

608KB
MD5

414dc5eb0c47614a9992cb197e7c2629
SHA1

e96011f7fe6748042874825c48b6bcab41398374
SHA256

4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798
SHA512

5b85f28d258d8d195081d62e99aa05f9a5c02ce1af5e8061e1e63c6cbc863251b85719ac931550a8e80d0e00b03e6ddfb4d5200fc0abffea652ac31ab2a162a6
SSDEEP

6144:Atn9LnHdKXSHl6YYCT67sVoxhED4jRVp0CNeG3TNLCRLF:onR9N6aIsVAEEjCCwALu

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\ViperFolder\\FiperH.exe\","	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2060 set thread context of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe
2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe
Token: SeDebugPrivilege	2720	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31
PID 2060 wrote to memory of 2720	2060	4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe	31

C:\Users\Admin\AppData\Local\Temp\4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe
"C:\Users\Admin\AppData\Local\Temp\4c47c69491166259b45ba5ef562a4dd0ad0547e01d0e5111fdbede33c478d798.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2060
- 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:2720

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/2060-18-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-1-0x0000000000FD0000-0x000000000106E000-memory.dmp

Filesize
632KB

Download
memory/2060-2-0x00000000003B0000-0x0000000000402000-memory.dmp

Filesize
328KB

Download
memory/2060-3-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-4-0x00000000004F0000-0x0000000000522000-memory.dmp

Filesize
200KB

Download
memory/2060-5-0x0000000000B60000-0x0000000000BAC000-memory.dmp

Filesize
304KB

Download
memory/2060-0-0x000000007417E000-0x000000007417F000-memory.dmp

Filesize
4KB

Download
memory/2720-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads