asyncrat | dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcec

General

Target

dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe
Size

262KB
MD5

b35c19ed08ef62d477e5910f3b10fb20
SHA1

e606866e3cb26a1ea05ecc53365b58942027c676
SHA256

dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcec
SHA512

8abb754fc4d40c7b69575e9e5e84377931003f1b3e2e2a2b16ce00ac250a55737b171bdd14dd1865c30073788cedc97faef65625fc324c53bac949f6308a8736
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/eU:WFzDqa86hV6uRRqX1evPlwAb

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/2708-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2708-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2708-33-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2708-38-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2708-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2068	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 2708	2068	HiPatchService.exe	32

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	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe
2708	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 2068	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	29
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2600 wrote to memory of 3032	2600	dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe	30
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32
PID 2068 wrote to memory of 2708	2068	HiPatchService.exe	32

C:\Users\Admin\AppData\Local\Temp\dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe
"C:\Users\Admin\AppData\Local\Temp\dc76a6c25a4b09e5303f1de55be91bedaf245ee4fca56df2d0bb1edf97d0bcecN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:2068
- - 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:2708
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3032

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2132

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
262KB

MD5
df123b30d139b659671a45893e7bf920

SHA1
5718090a0b4bffbcaa414dd6f104bdb610152acf

SHA256
6be83fd9a470c073df7c8e562228e1481b3ec4cf3cda5502ce92dc3434ca76a0

SHA512
2042bcadab9de77624a1360a69c7b4c2bd33f3a1513ee42441ecab562c18f1f1eba82032ede66b2fa185d3b59d073042a922b64878805961ab62f22f491e19dd

Download Submit
memory/2068-39-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2068-24-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2068-22-0x00000000000A0000-0x00000000000E6000-memory.dmp

Filesize
280KB

Download
memory/2600-25-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2600-9-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/2600-3-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2600-23-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2600-2-0x00000000003A0000-0x00000000003AA000-memory.dmp

Filesize
40KB

Download
memory/2600-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/2600-1-0x0000000000280000-0x00000000002C6000-memory.dmp

Filesize
280KB

Download
memory/2708-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2708-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2708-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-33-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2708-38-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2708-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2708-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2708-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads