asyncrat | baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a

General

Target

baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe
Size

270KB
MD5

1d80b76f8fca7f780584cc66433ab876
SHA1

2e16c2d86211f34cce8602e2ca0dc393f005c607
SHA256

baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a
SHA512

3db38d82993ce8a0566ef6f92fc631dc892a6c21ff2cd1929812c830baa8202882c9fa83b7181ef5199820418c22cf46174c714b0b9d4cbf1d5940352db68b27
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sd+:WFzDqa86hV6uRRqX1evPlwAEd+

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 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/2648-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2648-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2648-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2648-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2648-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2728	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 2648	2728	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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2728	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	31
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2016 wrote to memory of 2144	2016	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	32
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34
PID 2728 wrote to memory of 2648	2728	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe
"C:\Users\Admin\AppData\Local\Temp\baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- 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:2728
- - 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:2648
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2980

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

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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
06d6e0ab96f68d064d0db76268091a76

SHA1
2c06a0e8f0e8d966cea6220633858656169e9cc2

SHA256
21fc9cccd3e463e37247575793c330c16b2314cb2b7f6073a18e9ef9f2aa7e69

SHA512
5a64a7c3ed55636a5ae6eaea406c04d1fa7a9f13468cb867b9e42fc99e7ed229640af1fb180bd3b82396f5a7166de8d5cfc89c4176c87b339022aec265c34f91

Download Submit
memory/2016-21-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2016-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2016-2-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/2016-3-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2016-25-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2016-1-0x0000000000EB0000-0x0000000000EF6000-memory.dmp

Filesize
280KB

Download
memory/2648-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-26-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2648-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2648-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2648-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2648-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2648-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2648-28-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2728-23-0x00000000009D0000-0x0000000000A16000-memory.dmp

Filesize
280KB

Download
memory/2728-22-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/2728-38-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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