asyncrat | 295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939b

Analysis

max time kernel
117s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 18:28

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General

Target

295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe
Size

270KB
MD5

8e5677d73dc60dc3c21e36263354f840
SHA1

127cb5b81621dc3e33d770f93a4c8accaa37a292
SHA256

295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939b
SHA512

85d6769625dad507a5510f8a07148f23540c9f0bdd3b1895b82189370f43d90641ae7b399bf9a44f5482bc173d9ba374e700bbed13c7b90b2d74a5ba67929734
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdka:WFzDqa86hV6uRRqX1evPlwAEdka

Score

10^/10

asyncrat discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

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/2796-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2796-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2796-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2796-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2796-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
1848	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1848 set thread context of 2796	1848	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	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.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 12 IoCs

pid	Process
1848	HiPatchService.exe
1848	HiPatchService.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe
2796	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1848	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 1848	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	31
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 2112 wrote to memory of 2600	2112	295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe	32
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2756	1848	HiPatchService.exe	34
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35
PID 1848 wrote to memory of 2796	1848	HiPatchService.exe	35

C:\Users\Admin\AppData\Local\Temp\295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe
"C:\Users\Admin\AppData\Local\Temp\295e4452bc2d90c550ffd4ed35b88b0902528eff36122e37fb5449762a66939bN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1848
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2756
- - 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:2796
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2600

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
270KB

MD5
0f4c575f9b023ad35e4cfd4a5f2653a8

SHA1
0b32b0fa8b3fd4f8711278d46c3f1b9170b6f563

SHA256
ab022603a3ea1b87c61d07933d0c0325419b3ab1cc70cdcddebeae240109cf90

SHA512
891c77b39b4f9b49fce1040cbebe563aafef48f1ddb1bca62f1d5abfe4326e0326fb68b2138d8e049c1ef2a9bc54c8aed351dcc9eb5d60aade8a39e006f61659

Download Submit
memory/1848-23-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1848-38-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1848-22-0x0000000000060000-0x00000000000A6000-memory.dmp

Filesize
280KB

Download
memory/2112-25-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2112-20-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/2112-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/2112-3-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/2112-1-0x0000000000EA0000-0x0000000000EE6000-memory.dmp

Filesize
280KB

Download
memory/2112-2-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/2796-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2796-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download