asyncrat | 2029ad0bf4a39a9e0e880434117e8502eb04ed983fb1c1a8f5814f2fe3dad43f

Analysis

max time kernel
118s
max time network
27s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21-07-2024 00:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3724ea07a65c5ccdacd951990a435690N.exe
Size

267KB
MD5

3724ea07a65c5ccdacd951990a435690
SHA1

46dc11d1083894c282fd0ba7837a8ff68beadf22
SHA256

2029ad0bf4a39a9e0e880434117e8502eb04ed983fb1c1a8f5814f2fe3dad43f
SHA512

2a935625a483989c3b11b4edea15509ccde13503c6a0999e536824582a54ce05ff8c454ad6a61dc3a3364f5381273df82ac1152b4bad2c534e47a3cfe3b0c2e0
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/sXG:WFzDqa86hV6uRRqX1evPlwAEXG

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/2632-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2632-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2632-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2632-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2632-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2852	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	3724ea07a65c5ccdacd951990a435690N.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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	3724ea07a65c5ccdacd951990a435690N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2632	2852	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
2852	HiPatchService.exe
2852	HiPatchService.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe
2632	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2852	1732	3724ea07a65c5ccdacd951990a435690N.exe	29
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 1732 wrote to memory of 2900	1732	3724ea07a65c5ccdacd951990a435690N.exe	30
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 1264	2852	HiPatchService.exe	32
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33
PID 2852 wrote to memory of 2632	2852	HiPatchService.exe	33

C:\Users\Admin\AppData\Local\Temp\3724ea07a65c5ccdacd951990a435690N.exe
"C:\Users\Admin\AppData\Local\Temp\3724ea07a65c5ccdacd951990a435690N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1732
- 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:2852
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:1264
- - 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:2632
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  PID:2900

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:436

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
\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
267KB

MD5
b8a5cbcb5829b8eb656a5e0f53482797

SHA1
8d91a856c127e0d2aba1ea29109fea2912cbb1eb

SHA256
d4cb658e7d84715bc63e6bde2846769089f2f0d5a13f0f2167a3678aad15b73e

SHA512
f5e0123154c2e96b5521eb00df2a766628ef0833092ced1bfc09274d101b94363f2a6cf0240cabde59a8d141c6a873e22c71ef840e863b60be84b4b1019e7184

Download Submit
memory/1732-24-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/1732-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/1732-2-0x00000000002B0000-0x00000000002BA000-memory.dmp

Filesize
40KB

Download
memory/1732-1-0x0000000000140000-0x0000000000186000-memory.dmp

Filesize
280KB

Download
memory/1732-3-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2632-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2632-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-22-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download
memory/2852-21-0x00000000010D0000-0x0000000001116000-memory.dmp

Filesize
280KB

Download
memory/2852-37-0x0000000074770000-0x0000000074E5E000-memory.dmp

Filesize
6.9MB

Download