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 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/4692-29-0x0000000000400000-0x0000000000430000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe

Executes dropped EXE 1 IoCs

pid	Process
1076	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-1-5-21-1045960512-3948844814-3059691613-1000\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 1076 set thread context of 4692	1076	HiPatchService.exe	103

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	timeout.exe
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

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
4908	timeout.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1076	HiPatchService.exe
1076	HiPatchService.exe
1076	HiPatchService.exe
1076	HiPatchService.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe
4692	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1076	HiPatchService.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 1076	4796	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	93
PID 4796 wrote to memory of 1076	4796	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	93
PID 4796 wrote to memory of 1076	4796	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	93
PID 4796 wrote to memory of 1468	4796	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	94
PID 4796 wrote to memory of 1468	4796	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	94
PID 4796 wrote to memory of 1468	4796	baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe	94
PID 1468 wrote to memory of 4908	1468	cmd.exe	96
PID 1468 wrote to memory of 4908	1468	cmd.exe	96
PID 1468 wrote to memory of 4908	1468	cmd.exe	96
PID 1076 wrote to memory of 2052	1076	HiPatchService.exe	101
PID 1076 wrote to memory of 2052	1076	HiPatchService.exe	101
PID 1076 wrote to memory of 2052	1076	HiPatchService.exe	101
PID 1076 wrote to memory of 1412	1076	HiPatchService.exe	102
PID 1076 wrote to memory of 1412	1076	HiPatchService.exe	102
PID 1076 wrote to memory of 1412	1076	HiPatchService.exe	102
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103
PID 1076 wrote to memory of 4692	1076	HiPatchService.exe	103

C:\Users\Admin\AppData\Local\Temp\baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe
"C:\Users\Admin\AppData\Local\Temp\baf667160ac12440052daaea937cda4a7a341c5a50a6aa197182ee0419cb871a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4796
- 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:1076
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:1412
- - 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:4692
- 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:1468
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4908

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2216

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

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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
03c163ba8b29dfdbd5736c83a5ac7bb5

SHA1
f1d58c2b2808ec455bb11949b1e3751231288e74

SHA256
c18e34f0728ee4ac83bf39b4d94f0c2fd9bdd767be467eb3c22592b517fba327

SHA512
f1344fed63f10dd22e700481660d03688ad349d426f117c652ed5c663f6df9e69073b23e739c47ebdda90f9200657db119ba59f971b60acbee86d18cb6cf90bb

Download Submit
memory/1076-31-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-28-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/1076-27-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4692-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4796-3-0x00000000053E0000-0x0000000005472000-memory.dmp

Filesize
584KB

Download
memory/4796-10-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/4796-6-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/4796-5-0x00000000054A0000-0x00000000054AA000-memory.dmp

Filesize
40KB

Download
memory/4796-26-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4796-4-0x0000000074A00000-0x00000000751B0000-memory.dmp

Filesize
7.7MB

Download
memory/4796-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/4796-2-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/4796-1-0x00000000009B0000-0x00000000009F6000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads