asyncrat | 3fc01acb080ef608ddd10c30f5a85d8d2f2cdb3f64c6cd225b33ad9038e54efa

General

Target

3cab671b884dd93cc86f080c22b85050N.exe
Size

267KB
MD5

3cab671b884dd93cc86f080c22b85050
SHA1

6335ac1cb5d6854d59d10429bc958ea4540d2e9a
SHA256

3fc01acb080ef608ddd10c30f5a85d8d2f2cdb3f64c6cd225b33ad9038e54efa
SHA512

2f19cdbcc2a5fbe38f6c59d4a4e96fe8877ebc7b34cbdb50ad4bc1edb20a9daa65332c90cd47bf92e5f6e97548e2d02e222b42e9d02f3e4b87e9bd78659b07d9
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/sY:WFzDqa86hV6uRRqX1evPlwAEY

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/2624-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2624-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2624-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2624-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2624-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2752	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2272	3cab671b884dd93cc86f080c22b85050N.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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	3cab671b884dd93cc86f080c22b85050N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2624	2752	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
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe
2624	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2752	2272	3cab671b884dd93cc86f080c22b85050N.exe	30
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2272 wrote to memory of 2960	2272	3cab671b884dd93cc86f080c22b85050N.exe	31
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33
PID 2752 wrote to memory of 2624	2752	HiPatchService.exe	33

C:\Users\Admin\AppData\Local\Temp\3cab671b884dd93cc86f080c22b85050N.exe
"C:\Users\Admin\AppData\Local\Temp\3cab671b884dd93cc86f080c22b85050N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2272
- 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:2752
- - 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:2624
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  PID:2960

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2484

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
267KB

MD5
4cefae307800aea53c290b6d304bdce2

SHA1
ee071ade98d8450e3850debdea52b33f4079bbd1

SHA256
586dc2b28f36ce3d1e15f0d7e5c87989d03ea89b129e3dce6c4aae666e2c3052

SHA512
639007ad4822b603ff5b40ceabcb5438d73f7e43f799035db0f61c4610cfcd97714747cb3d7c795ad4d31a32792ee3d43afeff93672d59be24be2e66f0e8cf24

Download Submit
memory/2272-23-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2272-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2272-2-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/2272-1-0x0000000000940000-0x0000000000986000-memory.dmp

Filesize
280KB

Download
memory/2272-3-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2624-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2752-21-0x0000000000A10000-0x0000000000A56000-memory.dmp

Filesize
280KB

Download
memory/2752-22-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-37-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads