asyncrat | 1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f

Analysis

max time kernel
57s
max time network
57s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2025, 20:08

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General

Target

1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe
Size

272KB
MD5

ddd9a73f6b017c6839674d5e6f665c3f
SHA1

cb3f1debb913d6cafab38102c9f35b6450c3a3ac
SHA256

1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f
SHA512

41ef3b93154675266266dde5bbf579f54931ed3295ccaf1f2817201dbab3f07c1632f3c57a21f8d1bc9cdd02eba2f05735c946e6a4e17096e5ac7040b2cb0aa6
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdTo:WFzDqa86hV6uRRqX1evPlwAEdM

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 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/memory/1220-24-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe

Executes dropped EXE 2 IoCs

pid	Process
5600	HiPatchService.exe
1908	HiPatchService.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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5600 set thread context of 1220	5600	HiPatchService.exe	102
PID 1908 set thread context of 3080	1908	HiPatchService.exe	105

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 7 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.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	timeout.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1512	timeout.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
1220	RegAsm.exe
3080	RegAsm.exe
1220	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
3080	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe
1220	RegAsm.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 5600	4604	cmd.exe	92
PID 4604 wrote to memory of 5600	4604	cmd.exe	92
PID 4604 wrote to memory of 5600	4604	cmd.exe	92
PID 2884 wrote to memory of 1908	2884	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe	97
PID 2884 wrote to memory of 1908	2884	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe	97
PID 2884 wrote to memory of 1908	2884	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe	97
PID 2884 wrote to memory of 704	2884	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe	98
PID 2884 wrote to memory of 704	2884	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe	98
PID 2884 wrote to memory of 704	2884	1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe	98
PID 704 wrote to memory of 1512	704	cmd.exe	100
PID 704 wrote to memory of 1512	704	cmd.exe	100
PID 704 wrote to memory of 1512	704	cmd.exe	100
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 5600 wrote to memory of 1220	5600	HiPatchService.exe	102
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105
PID 1908 wrote to memory of 3080	1908	HiPatchService.exe	105

C:\Users\Admin\AppData\Local\Temp\1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe
"C:\Users\Admin\AppData\Local\Temp\1bd13a28f62855a85170033ee25f73c387b512b0042be9314981887074393d0f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- 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 use of WriteProcessMemory
  PID:1908
- - 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
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:3080
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:704
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1512

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4604
- 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 use of WriteProcessMemory
  PID:5600
- - 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
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:1220

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1620

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

Query Registry

T1012

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\Local\Microsoft\CLR_v4.0_32\UsageLogs\HiPatchService.exe.log

Filesize
1KB

MD5
7ebe314bf617dc3e48b995a6c352740c

SHA1
538f643b7b30f9231a3035c448607f767527a870

SHA256
48178f884b8a4dd96e330b210b0530667d9473a7629fc6b4ad12b614bf438ee8

SHA512
0ba9d8f4244c15285e254d27b4bff7c49344ff845c48bc0bf0d8563072fab4d6f7a6abe6b6742e8375a08e9a3b3e5d5dc4937ab428dbe2dd8e62892fda04507e

Download Submit
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat

Filesize
213B

MD5
0955cb4b691d44b37f8b6fad48a33b8e

SHA1
9dae759ae014cc124ab6eed7c8035788c124ae4a

SHA256
9092dbb1ca1767d1966b7f79349dd95a802a68248251bf070c0f1d74d5681d71

SHA512
08b868a028c1e8d29ed643416850df16f58d44668f9193b46bd3934965e5617a0a4015fc52815c5456023dbde01023450d295b76d936a936f26b602e764b0235

Download Submit
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
272KB

MD5
fcd9fae76d27cf834a76e1b993da0547

SHA1
d415ca00a5736b2aa3e636cf733214a9d8968b63

SHA256
9d42e7036ac9d94844d79aeb3e8a6317c9494304a05733e1b098a289d470976e

SHA512
158d1e4ba660d502b35b2ed83c1f9b9b2a42cb18359786d3ec2db5ed9cc8cae0e10083de5227b259ac1be484a35e3c6f278527379ab4d22751145a020f19953a

Download Submit
memory/1220-24-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1908-29-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/1908-21-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2884-4-0x0000000005270000-0x000000000527A000-memory.dmp

Filesize
40KB

Download
memory/2884-6-0x0000000005260000-0x000000000526A000-memory.dmp

Filesize
40KB

Download
memory/2884-15-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/2884-16-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2884-5-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2884-22-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2884-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/2884-3-0x00000000051B0000-0x0000000005242000-memory.dmp

Filesize
584KB

Download
memory/2884-2-0x00000000058C0000-0x0000000005E64000-memory.dmp

Filesize
5.6MB

Download
memory/2884-1-0x00000000008E0000-0x0000000000926000-memory.dmp

Filesize
280KB

Download
memory/5600-13-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/5600-14-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/5600-26-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download