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-1-5-21-1176886754-713327781-2233697964-1000\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 2980 set thread context of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe
Token: SeDebugPrivilege	2468	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 5072	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	88
PID 2980 wrote to memory of 5072	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	88
PID 2980 wrote to memory of 5072	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	88
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89
PID 2980 wrote to memory of 2468	2980	9108fcda60545f93af917e30af85c7b19d88158f1298ce32624d35a6e0251090.exe	89

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:2980
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  PID:5072
- 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:2468

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

Replay Monitor

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Downloads

memory/2468-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2468-18-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2468-17-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2468-16-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2468-15-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2980-8-0x000000002F880000-0x000000002F8E6000-memory.dmp

Filesize
408KB

Download
memory/2980-6-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2980-7-0x0000000005540000-0x0000000005894000-memory.dmp

Filesize
3.3MB

Download
memory/2980-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/2980-9-0x000000002FD20000-0x000000002FDB2000-memory.dmp

Filesize
584KB

Download
memory/2980-10-0x0000000030370000-0x0000000030914000-memory.dmp

Filesize
5.6MB

Download
memory/2980-5-0x0000000005510000-0x0000000005532000-memory.dmp

Filesize
136KB

Download
memory/2980-14-0x0000000074A40000-0x00000000751F0000-memory.dmp

Filesize
7.7MB

Download
memory/2980-4-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/2980-3-0x0000000002D40000-0x0000000002D4A000-memory.dmp

Filesize
40KB

Download
memory/2980-2-0x00000000052C0000-0x00000000053AA000-memory.dmp

Filesize
936KB

Download
memory/2980-1-0x0000000000750000-0x0000000000888000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads