asyncrat | 85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100

General

Target

85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe
Size

262KB
MD5

bb3d025def36b30d2fb3f442995fba03
SHA1

6c19a62c2823afce16fd56c9f7ca3fc34c04d49b
SHA256

85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100
SHA512

22322032c27e91970b4907cb2d14d889dffdc95f9914788a4f312518bb9b3172eb70bbbd8a32879b28d6fbe24ca721c8424c0c0dac3e247f2424ef318ab789e1
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eX:WFzDqa86hV6uRRqX1evPlwAw

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 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/2576-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2576-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2576-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2576-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2576-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Executes dropped EXE 1 IoCs

pid	Process
1200	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1200 set thread context of 2576	1200	HiPatchService.exe	35

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2636	explorer.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe
Token: SeShutdownPrivilege	2636	explorer.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe

Suspicious use of SendNotifyMessage 20 IoCs

pid	Process
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe
2636	explorer.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 1200	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	32
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 2652 wrote to memory of 2584	2652	85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe	33
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35
PID 1200 wrote to memory of 2576	1200	HiPatchService.exe	35

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe
"C:\Users\Admin\AppData\Local\Temp\85d9a7d75ece0120c82dd2980532c1c4eb4e5a76e58a228aeec21aebc307a100.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- 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:1200
- - 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:2576
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2584

C:\Windows\explorer.exe
explorer.exe
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2636

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

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
263KB

MD5
a86a0a2cce4b8bf4ad7bff9b7da82570

SHA1
8485b0c58d166b21dec296803d55292ee16bb835

SHA256
753a919a743e379a333d76523067ce603dc0cfa1e8412dd725b28897c83801ea

SHA512
21fd13280539d8e1829859d3b7be3562f4b3f199d7bec51319ba4391312e95946e862093f60fec8e8dc48f1eccd0004fd2413217c03bf417f3f51805e6d8755e

Download Submit
memory/1200-22-0x0000000000B40000-0x0000000000B86000-memory.dmp

Filesize
280KB

Download
memory/2576-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2576-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-42-0x00000000022C0000-0x00000000022D0000-memory.dmp

Filesize
64KB

Download
memory/2652-9-0x00000000743AE000-0x00000000743AF000-memory.dmp

Filesize
4KB

Download
memory/2652-24-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/2652-0-0x00000000743AE000-0x00000000743AF000-memory.dmp

Filesize
4KB

Download
memory/2652-3-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/2652-2-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download
memory/2652-1-0x0000000000830000-0x0000000000876000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads