asyncrat | 0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8ba

General

Target

0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe
Size

270KB
MD5

7a2b59d94c4497ffd26c841d481ae970
SHA1

04a664510872b3a4d04de6161f08196ae08290bc
SHA256

0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8ba
SHA512

d0b5b442e8221a9b989ac772d474020d5d2ebcb94f198612b5752cf28cf1e106b7b1ad1839f97f9b8ea04300ca94c9cdbc0c48e106d081553de33d3ba2d16196
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sde:WFzDqa86hV6uRRqX1evPlwAEde

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/3240-29-0x0000000000400000-0x0000000000430000-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	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe

Executes dropped EXE 1 IoCs

pid	Process
2476	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"	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2476 set thread context of 3240	2476	HiPatchService.exe	91

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	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.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
4696	timeout.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe
3240	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 2476	1224	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe	83
PID 1224 wrote to memory of 2476	1224	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe	83
PID 1224 wrote to memory of 2476	1224	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe	83
PID 1224 wrote to memory of 5060	1224	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe	84
PID 1224 wrote to memory of 5060	1224	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe	84
PID 1224 wrote to memory of 5060	1224	0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe	84
PID 5060 wrote to memory of 4696	5060	cmd.exe	86
PID 5060 wrote to memory of 4696	5060	cmd.exe	86
PID 5060 wrote to memory of 4696	5060	cmd.exe	86
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91
PID 2476 wrote to memory of 3240	2476	HiPatchService.exe	91

C:\Users\Admin\AppData\Local\Temp\0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe
"C:\Users\Admin\AppData\Local\Temp\0dbe8c82a5aa9e855a45066018b480d786054c810cb611465cc6cfa0bec2e8baN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1224
- 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:2476
- - 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:3240
- 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:5060
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4696

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:1928

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
d3cf39eda26ed3459a6d227b8aa4f76d

SHA1
8c98f6a4049717aa1a2caaca02ff345096f3a814

SHA256
514627d8cf1aad3495b7febd444e01e4fcb94d330c551173a7e194d703cec8f2

SHA512
166db0e70db57e9cd7660bacd4f2c49504855486d7b857afc765a35f6ca0bcc6ba25ca6480d179f4f533e230d9de896981487d4fc1ad1d6382c641dc3fb1e193

Download Submit
memory/1224-6-0x0000000004B90000-0x0000000004B9A000-memory.dmp

Filesize
40KB

Download
memory/1224-3-0x0000000004BA0000-0x0000000004C32000-memory.dmp

Filesize
584KB

Download
memory/1224-4-0x0000000004D40000-0x0000000004D4A000-memory.dmp

Filesize
40KB

Download
memory/1224-5-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/1224-0-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/1224-10-0x0000000074AEE000-0x0000000074AEF000-memory.dmp

Filesize
4KB

Download
memory/1224-2-0x00000000050B0000-0x0000000005654000-memory.dmp

Filesize
5.6MB

Download
memory/1224-25-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/1224-1-0x0000000000150000-0x0000000000196000-memory.dmp

Filesize
280KB

Download
memory/2476-26-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/2476-28-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/2476-31-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3240-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads