asyncrat | 9416e6132dd92b6959f70663005eef176bd91d6ece074459f76c14f8fe23fcbf

Analysis

max time kernel
116s
max time network
20s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-07-2024 13:12

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General

Target

9c3a18893011d2c2e93adafd939aee10N.exe
Size

266KB
MD5

9c3a18893011d2c2e93adafd939aee10
SHA1

e7bf93ad09ce896198da7ab09cfe95ffcb9ab39b
SHA256

9416e6132dd92b6959f70663005eef176bd91d6ece074459f76c14f8fe23fcbf
SHA512

9e2cbc5a2467b8279eab6ed845b772ef4102d6cfcf03c9c99707b2a0db70f1d402ea4a6f9a4a402c50d23d8adc8b878ffa83ed10f547119f3ff8259b89d2d9af
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8f:WFzDqa86hV6uRRqX1evPlwAE6

Score

10^/10

asyncrat 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/532-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/532-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/532-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/532-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/532-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2840	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2928	9c3a18893011d2c2e93adafd939aee10N.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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	9c3a18893011d2c2e93adafd939aee10N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 532	2840	HiPatchService.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2840	HiPatchService.exe
2840	HiPatchService.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe
532	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2840	2928	9c3a18893011d2c2e93adafd939aee10N.exe	30
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2928 wrote to memory of 2780	2928	9c3a18893011d2c2e93adafd939aee10N.exe	31
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 2168	2840	HiPatchService.exe	33
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34
PID 2840 wrote to memory of 532	2840	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\9c3a18893011d2c2e93adafd939aee10N.exe
"C:\Users\Admin\AppData\Local\Temp\9c3a18893011d2c2e93adafd939aee10N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
  "C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2168
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:532
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  PID:2780

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2492

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
dca6e996d0be5a44b4c6e8ef694e60bf

SHA1
a0f57bb0e8af53021c8c9154da8d86aedfebcbac

SHA256
acb1038e8bbfe81e9f17ac8af078ff34d5393440727056c540ef3335058a5834

SHA512
01a617e7331514c8c7d7a9741392552ef35e5878b1b4c7a3913c51dd2daea1ab0843f95846f6dbe7900f7ab5e0bdec309e866ad852624b23d3983170253d163f

Download Submit
memory/532-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/532-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/532-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/532-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/532-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/532-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/532-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/532-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-21-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2840-22-0x00000000011F0000-0x0000000001236000-memory.dmp

Filesize
280KB

Download
memory/2840-37-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2928-23-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2928-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/2928-3-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2928-1-0x0000000000940000-0x0000000000986000-memory.dmp

Filesize
280KB

Download
memory/2928-2-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download