asyncrat | 9db2883bad55629e11c0c328e06a1da16278997c67217f4182c2a763aa306d41

Analysis

max time kernel
118s
max time network
19s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
16/08/2024, 22:00

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General

Target

43ee27bab0d8542ef584be11117b6610N.exe
Size

267KB
MD5

43ee27bab0d8542ef584be11117b6610
SHA1

88c79b63dd9c476fe0e727656b4679dc38d63df4
SHA256

9db2883bad55629e11c0c328e06a1da16278997c67217f4182c2a763aa306d41
SHA512

167e02f8c5e97cc9b8b5f0608ae82a69c84b943d066f5a913a91689a9b08009931229b4667a9ee3c412effbf4c7eb8762ff4b6ffb8c882cb7004cf37bd64fe51
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/w:WFzDqa86hV6uRRqX1evPlwAo

Score

10^/10

asyncrat discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

corporation.warzonedns.com:9341

Mutex

480-28105c055659

Attributes

delay
0
install
false
install_folder
%AppData%

aes.plain

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/2416-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2416-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2416-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2416-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2416-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2368	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2304	43ee27bab0d8542ef584be11117b6610N.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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	43ee27bab0d8542ef584be11117b6610N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 2416	2368	HiPatchService.exe	35

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43ee27bab0d8542ef584be11117b6610N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2368	HiPatchService.exe
2368	HiPatchService.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe
2416	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2368	2304	43ee27bab0d8542ef584be11117b6610N.exe	30
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2304 wrote to memory of 2680	2304	43ee27bab0d8542ef584be11117b6610N.exe	31
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2844	2368	HiPatchService.exe	34
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35
PID 2368 wrote to memory of 2416	2368	HiPatchService.exe	35

C:\Users\Admin\AppData\Local\Temp\43ee27bab0d8542ef584be11117b6610N.exe
"C:\Users\Admin\AppData\Local\Temp\43ee27bab0d8542ef584be11117b6610N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
  "C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2844
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2416
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2156

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

System Location Discovery

T1614

System Language Discovery

T1614.001

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
49acc3559ea62b92c3660c8f1c5a16dc

SHA1
85882c1964d0d864f74a26010d5026114b9233d4

SHA256
b715b87d4baafbcdaba4a5ffcf6e4f6cde9f7de4ea3e4c647a8ead9d8d76ed82

SHA512
655654bc398238e2722b3278cd7174e0d2db027b721d5d1c7d2ba3f909906da647eeb5269d3771de011c0264fccbbd9107d95aadcb86d31b17b9ba06b21813f8

Download Submit
memory/2304-25-0x0000000073EC0000-0x00000000745AE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-3-0x0000000073EC0000-0x00000000745AE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-2-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/2304-1-0x00000000011A0000-0x00000000011E6000-memory.dmp

Filesize
280KB

Download
memory/2304-21-0x0000000073ECE000-0x0000000073ECF000-memory.dmp

Filesize
4KB

Download
memory/2304-0-0x0000000073ECE000-0x0000000073ECF000-memory.dmp

Filesize
4KB

Download
memory/2368-23-0x0000000073EC0000-0x00000000745AE000-memory.dmp

Filesize
6.9MB

Download
memory/2368-24-0x0000000000390000-0x00000000003D6000-memory.dmp

Filesize
280KB

Download
memory/2368-38-0x0000000073EC0000-0x00000000745AE000-memory.dmp

Filesize
6.9MB

Download
memory/2416-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2416-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download