asyncrat | 1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033

Analysis

max time kernel
141s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13-07-2024 12:34

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General

Target

1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe
Size

1.7MB
MD5

47d2d449ec519d7d24feafff8088735f
SHA1

75fd74fffc8a9da0ef33dce2a616fd2424e41b86
SHA256

1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033
SHA512

9fd8f13e6fc0ddf3cd69eb23f5fd9982b1f9f2f361b4b37de445bceea18860bdf8ca9ef546302d927b8ad749f48789ff51fe4797a69106a82921e275b5ada08b
SSDEEP

24576:Bn1MHQ7hZjEnBmMYYsB3J0zNMESsm/r8REOuPOEkU1johR:1NZjEnBmMAJGNusYr8REOuP3kUZohR

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-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\SystemGPU\\PCI-GPU.exe\","	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3452 set thread context of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe
3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe
Token: SeDebugPrivilege	3128	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 832	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	87
PID 3452 wrote to memory of 832	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	87
PID 3452 wrote to memory of 832	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	87
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88
PID 3452 wrote to memory of 3128	3452	1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe	88

C:\Users\Admin\AppData\Local\Temp\1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe
"C:\Users\Admin\AppData\Local\Temp\1063141a71a9f3b788d4be37ff25d52cb29f7ec8105fbd8b90129073e78cd033.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  PID:832
- 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:3128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3128-1089-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3128-1094-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/3128-1093-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/3128-1092-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/3128-1091-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/3452-32-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-60-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-48-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-26-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-66-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-64-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-62-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-58-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-56-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-54-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-28-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-50-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-24-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-44-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-42-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-40-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-38-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-36-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-34-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-0-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/3452-52-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-3-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-46-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-30-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-22-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-20-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-18-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-16-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-14-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-12-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-10-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-1079-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/3452-1080-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/3452-1081-0x0000000005770000-0x0000000005792000-memory.dmp

Filesize
136KB

Download
memory/3452-1082-0x00000000057A0000-0x0000000005AF4000-memory.dmp

Filesize
3.3MB

Download
memory/3452-1083-0x000000003D4D0000-0x000000003D536000-memory.dmp

Filesize
408KB

Download
memory/3452-1084-0x000000003DAB0000-0x000000003DB42000-memory.dmp

Filesize
584KB

Download
memory/3452-1085-0x000000003E100000-0x000000003E6A4000-memory.dmp

Filesize
5.6MB

Download
memory/3452-4-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-6-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-1090-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/3452-8-0x00000000054D0000-0x0000000005570000-memory.dmp

Filesize
640KB

Download
memory/3452-2-0x00000000054D0000-0x0000000005576000-memory.dmp

Filesize
664KB

Download
memory/3452-1-0x0000000000A10000-0x0000000000BC0000-memory.dmp

Filesize
1.7MB

Download