asyncrat | 9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c

General

Target

9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe
Size

266KB
MD5

fb84b1ee150e9cb0115c4751a749b8c1
SHA1

9cf720e82bc95cfae844597b3bb6f2798333e5ca
SHA256

9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c
SHA512

6ae10558a815a8c0c6cb26edd31c4ca43135d3f26cdc02d98e92c9c7b4b4cee9911bc32ec6a228e8d0c3d705637a5485a46b217b4b3f9803eddb46a3c4e222b6
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/v:WFzDqa86hV6uRRqX1evPlwAn

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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2620-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2620-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2620-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2620-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2620-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2824	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2620	2824	HiPatchService.exe	34

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.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

pid	Process
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe
2620	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2824	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	30
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 1900 wrote to memory of 2476	1900	9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe	31
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34
PID 2824 wrote to memory of 2620	2824	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe
"C:\Users\Admin\AppData\Local\Temp\9f8e77d169d89429ec407c149ed7bbd250a6e73d5f3cb2dfa763c25bc536e24c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- 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:2824
- - 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:2620
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2476

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1068

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

Filesize
266KB

MD5
1d48bc9dfc3d9594920a8f4adc1e57ba

SHA1
e047650c3428f5be5ff2d98adde6086b0bb1ae4a

SHA256
eead466e1f70a0bfa088ce21dfa9e32e7f06a1f68d9861c51daf72e82ccbb523

SHA512
1cbf00ab08c41c4541b129d617263753a2730ab38be28e3fd19402ccbcd779dbfab514ceb35b58fc76c0d78924f441cbfd179728e3be4ce37f388bfc30e66b30

Download Submit
memory/1900-24-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-0-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

Filesize
4KB

Download
memory/1900-2-0x00000000002A0000-0x00000000002AA000-memory.dmp

Filesize
40KB

Download
memory/1900-1-0x0000000000020000-0x0000000000066000-memory.dmp

Filesize
280KB

Download
memory/1900-3-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2620-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2620-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2620-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2620-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2620-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2620-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2620-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2824-22-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-21-0x0000000000AB0000-0x0000000000AF6000-memory.dmp

Filesize
280KB

Download
memory/2824-37-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads