asyncrat | df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9

Analysis

max time kernel
146s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 07:03

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General

Target

df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe
Size

270KB
MD5

9cbdfc95c830493af0d8986bfef01f77
SHA1

921f7051f9bd6ee4bb7267b8ec8935f7535546cb
SHA256

df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9
SHA512

26f1666affb62214b9fc8f30da91d019b3b432b11bbf3e275b190b4862f6b5c9a931e549bff15274c88429ede945dc94a243bf64ef8066f3c9daeb23707fd162
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdkXhb:WFzDqa86hV6uRRqX1evPlwAEdkXhb

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/2584-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2584-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2584-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2584-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2584-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2692	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.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"	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 2584	2692	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	HiPatchService.exe
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	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2692	HiPatchService.exe
2692	HiPatchService.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe
2584	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2692	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	30
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2168 wrote to memory of 2860	2168	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	31
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2568	2692	HiPatchService.exe	33
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34
PID 2692 wrote to memory of 2584	2692	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe
"C:\Users\Admin\AppData\Local\Temp\df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- 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:2692
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2568
- - 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:2584
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1324

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
271KB

MD5
1dafcb48921af954ad81b8e7cafee8cd

SHA1
4fe98e82d6816383c1d60643876cbcdd4c53fcb9

SHA256
508178ce85d68504b5a9bf1b07a18255814f47848453c3f9abd46138366c42d6

SHA512
b1389c7172e046054c55337b7186a319f9a0cd1ba2c8efd39ac88bcefb9abd731778b714e8239b65e10a33f7d9975e282568239c8e33468d4ee5939a149c6228

Download Submit
memory/2168-24-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2168-2-0x0000000000330000-0x000000000033A000-memory.dmp

Filesize
40KB

Download
memory/2168-1-0x0000000001350000-0x0000000001396000-memory.dmp

Filesize
280KB

Download
memory/2168-3-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2584-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2584-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2584-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2584-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2584-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2584-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2584-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2692-22-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-21-0x0000000000DC0000-0x0000000000E06000-memory.dmp

Filesize
280KB

Download
memory/2692-37-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download