asyncrat | fadd3924c86d093fb1c3d1219cf8d00266913c68f7dcf8bec5f46fd89a283db9

General

Target

c3957982acca86c31eefc4e82b586cc0N.exe
Size

266KB
MD5

c3957982acca86c31eefc4e82b586cc0
SHA1

15ecfc4b2d6744a37df13749652fb53eb2701374
SHA256

fadd3924c86d093fb1c3d1219cf8d00266913c68f7dcf8bec5f46fd89a283db9
SHA512

eb16d44e65a477cde38e6e1907b3e68a4c135853b0db5e7acc422d663a15f31252f9277fd777e8a870db2ba81dee18327e098dd5568e046e334a7a35bf8a824d
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/z:WFzDqa86hV6uRRqX1evPlwAb

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/2604-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2604-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2604-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2604-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2604-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2896	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2912	c3957982acca86c31eefc4e82b586cc0N.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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	c3957982acca86c31eefc4e82b586cc0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 2604	2896	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 10 IoCs

pid	Process
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe
2604	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2896	2912	c3957982acca86c31eefc4e82b586cc0N.exe	30
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2912 wrote to memory of 2616	2912	c3957982acca86c31eefc4e82b586cc0N.exe	31
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33
PID 2896 wrote to memory of 2604	2896	HiPatchService.exe	33

C:\Users\Admin\AppData\Local\Temp\c3957982acca86c31eefc4e82b586cc0N.exe
"C:\Users\Admin\AppData\Local\Temp\c3957982acca86c31eefc4e82b586cc0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2912
- 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 use of WriteProcessMemory
  PID:2896
- - 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:2604
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  PID:2616

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
266KB

MD5
b8510d100106b408f16461e5e4bbf7d2

SHA1
228cc81ce8cc379269638ecf8ef749d3236a3bb3

SHA256
27be76687ef0d4e8d9d234bc57a2a7fa1a87010e06e3247bde9e7c0f60543e87

SHA512
33e473ca06db6708c7dc91d31c1bed40200ea157fea1d6cb9528875c709a5c865e53d14990cb38c43ace1ffa7126f82f7f25c89fe2a1ce98be2fbcdde8da81d1

Download Submit
memory/2604-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2604-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2896-21-0x0000000000C90000-0x0000000000CD6000-memory.dmp

Filesize
280KB

Download
memory/2896-22-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2896-37-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-23-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-0-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/2912-3-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-1-0x00000000008E0000-0x0000000000926000-memory.dmp

Filesize
280KB

Download
memory/2912-2-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads