asyncrat | 8e824dec1e3c6b378e05a6e9aa4b7b6e797020d07c149e5da31218f6abf907bc

Analysis

max time kernel
117s
max time network
25s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
15-07-2024 10:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c242341ec919ff19dcd24e8dad99ade0N.exe
Size

267KB
MD5

c242341ec919ff19dcd24e8dad99ade0
SHA1

a0d03a83432578fac1dac5a5eea1247ab63b4de0
SHA256

8e824dec1e3c6b378e05a6e9aa4b7b6e797020d07c149e5da31218f6abf907bc
SHA512

1968aab4d8e1a21375629325c2da9b3d48f1d09c1193c793624e4788ff714684b3fc0d15d57efe2b00c84ab4bd0e6399d4340096f3d3e7a8bb1d6dfd40f610f5
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8Dm:WFzDqa86hV6uRRqX1evPlwAEQm

Score

10^/10

asyncrat persistence rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Contains code to disable Windows Defender 5 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/memory/2660-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2660-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2660-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2660-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2660-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2308	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2084	c242341ec919ff19dcd24e8dad99ade0N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660163958-4080398480-1122754539-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	c242341ec919ff19dcd24e8dad99ade0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 2660	2308	HiPatchService.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2308	HiPatchService.exe
2308	HiPatchService.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe
2660	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2308	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2308	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	29
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2084 wrote to memory of 2472	2084	c242341ec919ff19dcd24e8dad99ade0N.exe	30
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2664	2308	HiPatchService.exe	32
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33
PID 2308 wrote to memory of 2660	2308	HiPatchService.exe	33

C:\Users\Admin\AppData\Local\Temp\c242341ec919ff19dcd24e8dad99ade0N.exe
"C:\Users\Admin\AppData\Local\Temp\c242341ec919ff19dcd24e8dad99ade0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
  "C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2664
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2660
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  PID:2472

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat

Filesize
213B

MD5
0955cb4b691d44b37f8b6fad48a33b8e

SHA1
9dae759ae014cc124ab6eed7c8035788c124ae4a

SHA256
9092dbb1ca1767d1966b7f79349dd95a802a68248251bf070c0f1d74d5681d71

SHA512
08b868a028c1e8d29ed643416850df16f58d44668f9193b46bd3934965e5617a0a4015fc52815c5456023dbde01023450d295b76d936a936f26b602e764b0235

Download Submit
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
267KB

MD5
db7d61007bf9b4ee9fb41839a9f17239

SHA1
1fd93f0176184336ea2e35927f3c5e08efa9644e

SHA256
0a8bf62d51518eda3bc3ceeac75c207c1b7152c4ab4f8c03fc33a597ebbc82a4

SHA512
99f4ef9b20368eae6d25dedd9d32b7b613fb504501fc11cfdd56ad6907f9d9143c8a8e4ae4abf51557d7dd6643338f173ec2546e6dc44f19b7b5f367d99071c3

Download Submit
memory/2084-24-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2084-2-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2084-1-0x0000000000FD0000-0x0000000001016000-memory.dmp

Filesize
280KB

Download
memory/2084-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/2084-3-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-37-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-22-0x0000000000830000-0x0000000000876000-memory.dmp

Filesize
280KB

Download
memory/2308-21-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2660-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2660-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2660-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2660-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2660-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2660-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download