asyncrat | 5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6

General

Target

5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe
Size

262KB
MD5

927c6d4643486b1651636e48cecf380b
SHA1

7ec5a7b99457f6727aee71bfd2fc2e9416ea476c
SHA256

5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6
SHA512

d16b8a5d906f71d643881584ca6e8220f4aefb646bf6bd2f784f6b6a0026adc0f91ecf87d7cd12c2890c6dd7ec1243c3221c3691e450b3e2cb4dc3df0e91ce55
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eU:WFzDqa86hV6uRRqX1evPlwAr

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/2712-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2712-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2712-38-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2712-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2712-33-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2868	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2712	2868	HiPatchService.exe	32

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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe
2712	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2868	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	29
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2304 wrote to memory of 2912	2304	5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe	30
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32
PID 2868 wrote to memory of 2712	2868	HiPatchService.exe	32

C:\Users\Admin\AppData\Local\Temp\5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe
"C:\Users\Admin\AppData\Local\Temp\5bd07877dfc90482632cc43e3bee0c51d1afd52202e862f22e3d4af4b08dc8f6.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- 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:2868
- - 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:2712
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2812

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

Replay Monitor

Loading Replay Monitor...

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
262KB

MD5
c6dbe3fc45092a6578863eed684d9fe2

SHA1
689927c29ddef75f3e4ad27e70b635f461667c6e

SHA256
3a068b9f572a788eff1d496b277a6d73ec5d09cc93294799443baa74d09a5f89

SHA512
d3075aea945c42dc0996c43cec589b78d11bc8b4c35a640261d991cd7cc62c288387307ebe7c080a3378d7b5d9022fae40a1bd27c395f2a39439188bda10c931

Download Submit
memory/2304-25-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-0-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2304-9-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2304-2-0x0000000000250000-0x000000000025A000-memory.dmp

Filesize
40KB

Download
memory/2304-1-0x0000000000080000-0x00000000000C6000-memory.dmp

Filesize
280KB

Download
memory/2304-3-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2304-23-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2712-38-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2712-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2712-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2712-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2712-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2712-33-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2712-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2868-24-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2868-22-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

Filesize
280KB

Download
memory/2868-39-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads