asyncrat | a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2

Analysis

max time kernel
148s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03/01/2025, 02:05

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General

Target

a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe
Size

271KB
MD5

9690ae3afbdef63ec410171b96060c0f
SHA1

6ef69525a8620b58dc07cc54bc8b98a697f56715
SHA256

a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2
SHA512

c82e53296ede016dd8f50373ac57536ab8159eb22cc7e0e682d006b32ea46f4bcd03dc15f35de706217755f79cbb3feeedaf7db6d7d3cab9c84294facdbdd4c3
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sd9:WFzDqa86hV6uRRqX1evPlwAEd9

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
Asyncrat family
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/1564-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1564-38-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1564-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1564-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1564-33-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2880	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 1564	2880	HiPatchService.exe	34

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	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.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
2880	HiPatchService.exe
2880	HiPatchService.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe
1564	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 2880	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	30
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2728 wrote to memory of 1784	2728	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	31
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 2068	2880	HiPatchService.exe	33
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34
PID 2880 wrote to memory of 1564	2880	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe
"C:\Users\Admin\AppData\Local\Temp\a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- 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:2880
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2068
- - 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:1564
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1784

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:796

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
271KB

MD5
ab6c03fb4fc184f0fd2756ec6837ee76

SHA1
76cf6528a4c5ac7af9f5c01a21b2ca1ffea51097

SHA256
fdde83f4576bf6f718ab7fce27d420e2c97b2293dd44fd1fb31c574b4cc02b9d

SHA512
d7ff1877dcad5fb2400d612d84b5e88620aabd586c7860da04c52682c16364589586933d2732b8b075b8014f23ffe12d37539350951d91d2fa632940dcd8b066

Download Submit
memory/1564-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-33-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-38-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1564-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2728-25-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-23-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-3-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-1-0x00000000011B0000-0x00000000011F6000-memory.dmp

Filesize
280KB

Download
memory/2728-2-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/2728-9-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2880-24-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-22-0x0000000000060000-0x00000000000A6000-memory.dmp

Filesize
280KB

Download
memory/2880-39-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download