asyncrat | 568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298

General

Target

568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe
Size

267KB
MD5

1ae1cf41f4f2337ea021c6fde824f49a
SHA1

452d014dbba37bc07d60bc9ae1a5d80f0fd5c903
SHA256

568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298
SHA512

f45ae1d90f816bc94c9e7255d6aa93bdb614f7fffd4c30556bd1fd9cc48a8a09a9e8e6ac58d1f703156b4c774be450e630df5efb6e8c1cc63aa778ba0c597b79
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sY:WFzDqa86hV6uRRqX1evPlwAEY

Score

10^/10

asyncrat discovery 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 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/3052-28-0x0000000000400000-0x0000000000430000-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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 3052	2496	HiPatchService.exe	98

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	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.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

evasion

pid	Process
2996	timeout.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe
3052	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2496	1756	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe	93
PID 1756 wrote to memory of 2496	1756	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe	93
PID 1756 wrote to memory of 2496	1756	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe	93
PID 1756 wrote to memory of 3964	1756	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe	94
PID 1756 wrote to memory of 3964	1756	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe	94
PID 1756 wrote to memory of 3964	1756	568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe	94
PID 3964 wrote to memory of 2996	3964	cmd.exe	96
PID 3964 wrote to memory of 2996	3964	cmd.exe	96
PID 3964 wrote to memory of 2996	3964	cmd.exe	96
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98
PID 2496 wrote to memory of 3052	2496	HiPatchService.exe	98

C:\Users\Admin\AppData\Local\Temp\568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe
"C:\Users\Admin\AppData\Local\Temp\568ad9e7ba8374b6bd36dd1475a2fe3fa125d72ea38e724f3c01375595a34298.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1756
- 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:2496
- - 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:3052
- 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:3964
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2996

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3808,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=4500 /prefetch:8
1⤵
PID:1584

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:3704

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
267KB

MD5
0a3f8560405fdfb8d43f9263b5b25c1b

SHA1
576217f2fb61b7d770c9db2ed3cab213d27a6179

SHA256
f2527e5b0e24e72d3602c4a82b946dcb0556f8b71c998f906c007719a41fba49

SHA512
ae123f32f33f4d1306105686d44cc2444139cf36ab0a64112daff0be9c98df5381aff2ee044343e1bda381b9f0ae9b353bd0942259d0907f4274b97aae8bd832

Download Submit
memory/1756-6-0x0000000004B20000-0x0000000004B2A000-memory.dmp

Filesize
40KB

Download
memory/1756-3-0x0000000004A60000-0x0000000004AF2000-memory.dmp

Filesize
584KB

Download
memory/1756-4-0x0000000004B30000-0x0000000004B3A000-memory.dmp

Filesize
40KB

Download
memory/1756-5-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1756-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/1756-2-0x0000000005100000-0x00000000056A4000-memory.dmp

Filesize
5.6MB

Download
memory/1756-25-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1756-1-0x0000000000040000-0x0000000000086000-memory.dmp

Filesize
280KB

Download
memory/2496-24-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-26-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/2496-30-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/3052-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads