asyncrat | f47794765c365e7724d229da871f381eb461bd084deba063a18c8ca58b994450

General

Target

0969e21e59f59df0800c57a7afdd7a50N.exe
Size

266KB
MD5

0969e21e59f59df0800c57a7afdd7a50
SHA1

d1cb11da5e5daaa764af3605dc93c7af27658c12
SHA256

f47794765c365e7724d229da871f381eb461bd084deba063a18c8ca58b994450
SHA512

c55aab17b4e8732fbb89027f0559c305d3ca574fea89c770b99fe6336bcc648ae2a38225adf649f0cd36811a86686bb1578241568dde7f30f4cb0d45e8905c5d
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/sT:WFzDqa86hV6uRRqX1evPlwAET

Score

10^/10

asyncrat discovery persistence rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat 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/2108-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2108-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2108-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2108-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2108-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2980	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2520	0969e21e59f59df0800c57a7afdd7a50N.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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	0969e21e59f59df0800c57a7afdd7a50N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2980 set thread context of 2108	2980	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	0969e21e59f59df0800c57a7afdd7a50N.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
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe
2108	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2980	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	31
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2520 wrote to memory of 2756	2520	0969e21e59f59df0800c57a7afdd7a50N.exe	32
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34
PID 2980 wrote to memory of 2108	2980	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\0969e21e59f59df0800c57a7afdd7a50N.exe
"C:\Users\Admin\AppData\Local\Temp\0969e21e59f59df0800c57a7afdd7a50N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- 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:2980
- - 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:2108
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2148

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
266KB

MD5
b0b7f883a21f43c4591f919bc4a1c8be

SHA1
3de719626bf85e7c71a34ca304dad5d9b0b9bbed

SHA256
10d095ca68c2af31073b2293d2d15e324dee347209527bc73545656c9878b777

SHA512
524ec8da26e722c980906d165a0c166726c32dfdc914a37871636f830bdca708afc9733b592ff3ecd786af0fd552f67a6fea8c315c849b26305d3ad07c2593eb

Download Submit
memory/2108-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2520-22-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/2520-3-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-1-0x0000000000FF0000-0x0000000001036000-memory.dmp

Filesize
280KB

Download
memory/2520-2-0x0000000000350000-0x000000000035A000-memory.dmp

Filesize
40KB

Download
memory/2980-24-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-21-0x0000000000B30000-0x0000000000B76000-memory.dmp

Filesize
280KB

Download
memory/2980-37-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads