asyncrat | e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161

General

Target

e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe
Size

270KB
MD5

097fb93775b8349a0aa7de58e1a14c70
SHA1

40540069a8bb04a64107b1c34f0293d774d3f129
SHA256

e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161
SHA512

737f0b29eed3cafec815232a60f35c71ec2d8ad1347e4d2cb5741357157d8e45c2477a7ad7ac7829fd595b7c5de2da1f804c9402b73738a03a85859aef69a072
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdkXf:WFzDqa86hV6uRRqX1evPlwAEdkXf

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 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/memory/668-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe

Executes dropped EXE 1 IoCs

pid	Process
3132	HiPatchService.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3132 set thread context of 668	3132	HiPatchService.exe	88

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 5 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	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4596	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe
668	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 3132	1864	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe	82
PID 1864 wrote to memory of 3132	1864	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe	82
PID 1864 wrote to memory of 3132	1864	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe	82
PID 1864 wrote to memory of 2936	1864	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe	83
PID 1864 wrote to memory of 2936	1864	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe	83
PID 1864 wrote to memory of 2936	1864	e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe	83
PID 2936 wrote to memory of 4596	2936	cmd.exe	85
PID 2936 wrote to memory of 4596	2936	cmd.exe	85
PID 2936 wrote to memory of 4596	2936	cmd.exe	85
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88
PID 3132 wrote to memory of 668	3132	HiPatchService.exe	88

C:\Users\Admin\AppData\Local\Temp\e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe
"C:\Users\Admin\AppData\Local\Temp\e7d8792a01226318a6d51f5de16b6f32a51ecb9e3726a665c007171a6dd09161N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864
- 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:3132
- - 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
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:668
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4596

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1784

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

Query Registry

2

T1012

System Information Discovery

3

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

Filesize
270KB

MD5
4ba3619c730610beee924af5ab931735

SHA1
447191d7d2bcb2327f8fe778e11c93691654d857

SHA256
89fb382407c55bd4918c637e356f85528f43fc5daff9904bdaadd8bbb9e689e5

SHA512
66b3f4294193962db8b6466d88da5604d22207de724fafc6b29900dd14adafd1b9db3cdd186fc6fc3d730856e7cad13673a59dea2d49328647ebc5dd7ddb1cbb

Download Submit
memory/668-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1864-6-0x0000000005650000-0x000000000565A000-memory.dmp

Filesize
40KB

Download
memory/1864-4-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/1864-5-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1864-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/1864-10-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/1864-3-0x00000000056D0000-0x0000000005762000-memory.dmp

Filesize
584KB

Download
memory/1864-25-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1864-2-0x0000000005BE0000-0x0000000006184000-memory.dmp

Filesize
5.6MB

Download
memory/1864-1-0x0000000000C10000-0x0000000000C56000-memory.dmp

Filesize
280KB

Download
memory/3132-26-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3132-27-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3132-31-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads