asyncrat | 06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b

General

Target

06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe
Size

265KB
MD5

8cf0cad60f5b2e847a41d583a0abb9e0
SHA1

6fe7ab2a812f4278d6f188d78ea6d674a2685691
SHA256

06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b
SHA512

da89b55ee982d400c6a45fa72fb6cba3de53620233f39da9fc6d259b9b0d56e370e28b2d11634428c38fd7e28c3094b168fcadc2fb6377ac0511c284ee4f753a
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/sC:WFzDqa86hV6uRRqX1evPlwAEC

Score

10^/10

asyncrat 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.

Processes:

resource	yara_rule
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Detects Windows executables referencing non-Windows User-Agents 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects executables containing artifacts associated with disabling Widnows Defender 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_SUSPICIOUS_DisableWinDefender

Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender

Detects file containing reversed ASEP Autorun registry keys 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000430000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse

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

Processes:

06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe

Executes dropped EXE 1 IoCs

Processes:

HiPatchService.exe

pid process

1168 HiPatchService.exe

pid	process
1168	HiPatchService.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HiPatchService.exe

description pid process target process

PID 1168 set thread context of 2900 1168 HiPatchService.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 1168 set thread context of 2900	1168	HiPatchService.exe	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

Processes:

RegAsm.exe

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

Processes:

timeout.exe

pid process

3560 timeout.exe

pid	process
3560	timeout.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

RegAsm.exe

pid	process
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe
2900	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.execmd.exeHiPatchService.exe

description	pid	process	target process
PID 4252 wrote to memory of 1168	4252	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe	HiPatchService.exe
PID 4252 wrote to memory of 1168	4252	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe	HiPatchService.exe
PID 4252 wrote to memory of 1168	4252	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe	HiPatchService.exe
PID 4252 wrote to memory of 4696	4252	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe	cmd.exe
PID 4252 wrote to memory of 4696	4252	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe	cmd.exe
PID 4252 wrote to memory of 4696	4252	06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe	cmd.exe
PID 4696 wrote to memory of 3560	4696	cmd.exe	timeout.exe
PID 4696 wrote to memory of 3560	4696	cmd.exe	timeout.exe
PID 4696 wrote to memory of 3560	4696	cmd.exe	timeout.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe
PID 1168 wrote to memory of 2900	1168	HiPatchService.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe
"C:\Users\Admin\AppData\Local\Temp\06e8de6d1ccf39fa45d08b9ae53602e5c4e0440f374d4a13fd8fc2c3601ce79b.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4252

C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
"C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2900

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:4696

C:\Windows\SysWOW64\timeout.exe
timeout /t 180
3⤵
- Delays execution with timeout.exe
PID:3560

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:4256

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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
265KB

MD5
aa7f18583fb07acd59abe65adcb3e269

SHA1
754a0f7e3724865e2f3974169ace967406472749

SHA256
4db5369f9892489b48b1d7a4b6b49aa9e308c21dce8107911599c40083861872

SHA512
1b6ad55e0dafda1c56e93bd15117a970bb87b1d8cc028c3f205d0b70494d9fd92ccbe0e9a6f3ff50645526effbfe8f2e96daad5c0fd4ce4112d86c1e360f928c

Download Submit
memory/1168-30-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1168-27-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1168-24-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/2900-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4252-6-0x0000000005250000-0x000000000525A000-memory.dmp

Filesize
40KB

Download
memory/4252-0-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/4252-5-0x0000000005260000-0x000000000526A000-memory.dmp

Filesize
40KB

Download
memory/4252-25-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/4252-4-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/4252-3-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/4252-2-0x0000000005870000-0x0000000005E14000-memory.dmp

Filesize
5.6MB

Download
memory/4252-1-0x0000000000820000-0x0000000000866000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads