asyncrat | 4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fc

General

Target

4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe
Size

270KB
MD5

df919a4dcdefa539f6042cb620d42b50
SHA1

bf35e0ed2b5bfaa1653ebad14019e7f146dc6f02
SHA256

4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fc
SHA512

3eef9f5a4b75b904f18a53b62bbe0c46e6d2697124e4eec067111fc2edb9c14134bd6333cc67afb95dd75b7cfeb868f232e0495b177b6f140ad8858380f5e412
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdi:WFzDqa86hV6uRRqX1evPlwAEdi

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/2588-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2588-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2588-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2588-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2588-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2800	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2588	2800	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	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.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
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe
2588	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2800	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	31
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2860 wrote to memory of 2688	2860	4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe	32
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34
PID 2800 wrote to memory of 2588	2800	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe
"C:\Users\Admin\AppData\Local\Temp\4396b73ed9f563d09e76fdbaabd8f61f382f19b1132a1e4170366681e6c7c1fcN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- 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:2800
- - 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:2588
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2284

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
270KB

MD5
47ae68c876c828b08a34f87b489e6d11

SHA1
7934130acd146c140f3b1b8e4d27c1a31e01787f

SHA256
692fe84222e7f2b94495ce348217e3e2f862d34b40bc65ac1a30501dfaa73944

SHA512
ef9c465b4f1eb567724f457063ae6cc23245fd7f524904b811521a0173e0170e7c936e582a0cea18fe370cc7c0cf2f2f07a3c427dbff0c70beb786ddaf120dbb

Download Submit
memory/2588-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2588-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2800-23-0x0000000000A20000-0x0000000000A66000-memory.dmp

Filesize
280KB

Download
memory/2800-22-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-38-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-24-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/2860-21-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/2860-3-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-1-0x0000000001100000-0x0000000001146000-memory.dmp

Filesize
280KB

Download
memory/2860-2-0x0000000000420000-0x000000000042A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads