asyncrat | a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03/12/2024, 10:47

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General

Target

a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe
Size

270KB
MD5

648561eb56761122d8ad1121637dec68
SHA1

2fb61de18ffb3e0f5410ed1f497ca5d2528d150b
SHA256

a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f
SHA512

aad58d748208cdb1d7f6c2c884a1dd93b13d6715f3047678b3daf97054ae3d6939a1585f3b80f738be6df2c8c429bd8a6307432636046ab8715d536dcdedf6d4
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdm:WFzDqa86hV6uRRqX1evPlwAEdm

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/2672-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2672-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2672-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2672-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2672-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2944	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2944 set thread context of 2672	2944	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2944	HiPatchService.exe
2944	HiPatchService.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe
2672	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2944	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	30
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2164 wrote to memory of 2364	2164	a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe	31
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2648	2944	HiPatchService.exe	33
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34
PID 2944 wrote to memory of 2672	2944	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe
"C:\Users\Admin\AppData\Local\Temp\a8a72cccb4eab0b9ee84f1a9ff5cda234eae5c182c0d138c4e6938fdf30e397f.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2164
- 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:2944
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2648
- - 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:2672
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2364

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1956

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
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
270KB

MD5
f5b024586b9acb8cceca16cb102c6295

SHA1
a19e6f32ceedbe696cc3f9cd759d52fa6dc577ca

SHA256
3a68c2f5d644f7ac401d517f97d3503ad9d615232798d566576cf88c84836698

SHA512
75086b2b2cac24f90b4a88b1102ae6a69da6a41cc8779f6580497fc39a74637d5c9e083e800e4250975422be651684ef8c076819337644a26927ec5669f6b346

Download Submit
memory/2164-25-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/2164-2-0x0000000000310000-0x000000000031A000-memory.dmp

Filesize
40KB

Download
memory/2164-1-0x00000000011B0000-0x00000000011F6000-memory.dmp

Filesize
280KB

Download
memory/2164-0-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/2164-21-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/2164-3-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2672-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2944-22-0x0000000000C40000-0x0000000000C86000-memory.dmp

Filesize
280KB

Download
memory/2944-23-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/2944-38-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download