asyncrat | 5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6

General

Target

5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe
Size

262KB
MD5

927c6d4643486b1651636e48cecf380b
SHA1

7ec5a7b99457f6727aee71bfd2fc2e9416ea476c
SHA256

5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6
SHA512

d16b8a5d906f71d643881584ca6e8220f4aefb646bf6bd2f784f6b6a0026adc0f91ecf87d7cd12c2890c6dd7ec1243c3221c3691e450b3e2cb4dc3df0e91ce55
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eU:WFzDqa86hV6uRRqX1evPlwAr

Score

10^/10

asyncrat discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

C2

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/3832-29-0x0000000000400000-0x0000000000430000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe

Executes dropped EXE 1 IoCs

pid	Process
3188	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3188 set thread context of 3832	3188	HiPatchService.exe	89

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 5 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	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Checks processor information in registry 2 TTPs 2 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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3092	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
3188	HiPatchService.exe
3188	HiPatchService.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe
3832	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3188	HiPatchService.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 3188	2372	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	84
PID 2372 wrote to memory of 3188	2372	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	84
PID 2372 wrote to memory of 3188	2372	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	84
PID 2372 wrote to memory of 2024	2372	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	85
PID 2372 wrote to memory of 2024	2372	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	85
PID 2372 wrote to memory of 2024	2372	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	85
PID 2024 wrote to memory of 3092	2024	cmd.exe	87
PID 2024 wrote to memory of 3092	2024	cmd.exe	87
PID 2024 wrote to memory of 3092	2024	cmd.exe	87
PID 3188 wrote to memory of 2592	3188	HiPatchService.exe	88
PID 3188 wrote to memory of 2592	3188	HiPatchService.exe	88
PID 3188 wrote to memory of 2592	3188	HiPatchService.exe	88
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89
PID 3188 wrote to memory of 3832	3188	HiPatchService.exe	89

C:\Users\Admin\AppData\Local\Temp\5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe
"C:\Users\Admin\AppData\Local\Temp\5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- 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:3188
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2592
- - 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:3832
- 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:2024
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3092

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:3996

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

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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

Filesize
262KB

MD5
acca71701677a25d096fd0bf2b3101c2

SHA1
54cdb73449d10d99e5b3771f6cdb2bcb85538286

SHA256
40ad102e0bf3958cd68d944dbd0733434e38dfbba02691ea06aee9583a14cac3

SHA512
c6ef8ce3bf027ce27ab8841c21656c297bc470e19e170cf1d75b213b46641ae5ee1933b3023c8abd67eb70ba3a4a83cab220b7bd2ab385456bd442509d78725f

Download Submit
memory/2372-6-0x00000000050D0000-0x00000000050DA000-memory.dmp

Filesize
40KB

Download
memory/2372-3-0x0000000005140000-0x00000000051D2000-memory.dmp

Filesize
584KB

Download
memory/2372-4-0x00000000050E0000-0x00000000050EA000-memory.dmp

Filesize
40KB

Download
memory/2372-5-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2372-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2372-10-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2372-2-0x00000000056F0000-0x0000000005C94000-memory.dmp

Filesize
5.6MB

Download
memory/2372-25-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2372-1-0x0000000000690000-0x00000000006D6000-memory.dmp

Filesize
280KB

Download
memory/3188-26-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/3188-27-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/3188-31-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/3832-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads