asyncrat | 693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158

General

Target

693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe
Size

267KB
MD5

4499e79f07964fc7d7e2e32f4cd5c2bb
SHA1

17b42d7330c8bc9470d9db20e8a1a28bd399b2b6
SHA256

693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158
SHA512

46e474b304485c41de33c876be4edca4e63aadaa62d2863a46df67e019a21ca5f2e11eb6331683f905c62b5a066496da6ac2442f92378376c5967563ff312992
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/sD:WFzDqa86hV6uRRqX1evPlwAED

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

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.

Processes:

resource	yara_rule
behavioral1/memory/2912-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2912-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2912-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2912-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2912-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

Processes:

HiPatchService.exe

pid process

2556 HiPatchService.exe
Loads dropped DLL 1 IoCs

Processes:

693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe

pid process

2696 693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe

pid	process
2556	HiPatchService.exe

pid	process
2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HiPatchService.exe

description pid process target process

PID 2556 set thread context of 2912 2556 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 2556 set thread context of 2912	2556	HiPatchService.exe	RegAsm.exe

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

Processes:

693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exeHiPatchService.execmd.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.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 10 IoCs

Processes:

RegAsm.exe

pid	process
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe
2912	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exeHiPatchService.exe

description	pid	process	target process
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2556	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	HiPatchService.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2696 wrote to memory of 2184	2696	693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe	cmd.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe
PID 2556 wrote to memory of 2912	2556	HiPatchService.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe
"C:\Users\Admin\AppData\Local\Temp\693b320b7ead59116cf3f84bf544e657fcfd36110b1f27f03d182f9c4ffd2158.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696

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:2556

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:2912

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
2⤵
- System Location Discovery: System Language Discovery
PID:2184

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:3056

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

System Information Discovery

1

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
e7587e2e604b6529756ad89f640b0b0f

SHA1
19db92bd31dcd5d1eab6b8048cfbaf641053c93c

SHA256
47eeacff5bdfd8cf0741e9799796e9b0aa4d997b1bdab742f584c7d4132c1c44

SHA512
8cac11933bab7747d14f13c61b9937808febc08d236a3da396296cd1cbcd16871f3667df41af8f75b7dc604119991bd949695018a0079d46a6c5e19816889165

Download Submit
memory/2556-37-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-22-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2556-23-0x0000000000D80000-0x0000000000DC6000-memory.dmp

Filesize
280KB

Download
memory/2696-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2696-1-0x0000000000E40000-0x0000000000E86000-memory.dmp

Filesize
280KB

Download
memory/2696-2-0x0000000000300000-0x000000000030A000-memory.dmp

Filesize
40KB

Download
memory/2696-24-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2696-3-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2912-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2912-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2912-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2912-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2912-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2912-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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