asyncrat | 9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090

General

Target

9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
Size

1.2MB
MD5

017fe34b7a5a976740fb655f2a6e626d
SHA1

a389020efb59f92042306499b98de8d5c2951dda
SHA256

9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090
SHA512

8289dc576d5b4bbf11f69c98cbe337e9365e77add7965b7c1b1b2c8f1b77d1e897dcff023b5ce22376ecb83370c747753318cf68b9ff6c851733566e4b52edcf
SSDEEP

24576:3P9blhVTV8VN3b5J3r0nMkOSMrcnNN9SyASIEtJlWB:ln7iN3NJ3r6M1MXtIE3l

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-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\brabrkbkjareba\\vbreubvhj.exe\","	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
Token: SeDebugPrivilege	2900	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2896	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	32
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2796	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	33
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34
PID 2520 wrote to memory of 2900	2520	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	34

C:\Users\Admin\AppData\Local\Temp\9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
"C:\Users\Admin\AppData\Local\Temp\9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  PID:2896
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  PID:2796
- 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:2900

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/2520-18-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-1-0x0000000000050000-0x0000000000188000-memory.dmp

Filesize
1.2MB

Download
memory/2520-2-0x0000000004850000-0x000000000493A000-memory.dmp

Filesize
936KB

Download
memory/2520-3-0x00000000003C0000-0x00000000003CA000-memory.dmp

Filesize
40KB

Download
memory/2520-4-0x0000000004210000-0x00000000042A2000-memory.dmp

Filesize
584KB

Download
memory/2520-5-0x0000000074170000-0x000000007485E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-0-0x000000007417E000-0x000000007417F000-memory.dmp

Filesize
4KB

Download
memory/2900-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2900-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2900-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2900-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2900-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2900-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2900-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads