asyncrat | 3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace

General

Target

3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe
Size

266KB
MD5

53e8b92110b8af5408967cd4ce4ce9ae
SHA1

2e6a97cc2b38d1e859feff86ec2259d13c76a6ca
SHA256

3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace
SHA512

dae5a8b7a444f2de6c196a8d4327957774c448f96dedc58768a9ca55a0fc1177c59259edc8c6ea1073ff582a4e48fc05cec5be80c21a04ef2c86fc95e7c015bf
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sH:WFzDqa86hV6uRRqX1evPlwAEH

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/2640-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2640-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2640-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2640-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2640-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2684	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2684 set thread context of 2640	2684	HiPatchService.exe	33

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe
2640	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2684	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	30
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2080 wrote to memory of 2692	2080	3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe	31
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33
PID 2684 wrote to memory of 2640	2684	HiPatchService.exe	33

C:\Users\Admin\AppData\Local\Temp\3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe
"C:\Users\Admin\AppData\Local\Temp\3878d445fcce175ce23a4680bc8a98cbb6298b115517116463af7399ca905ace.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- 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:2684
- - 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:2640
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2692

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2896

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
391630dd1b14d08bef731e0d9df2600b

SHA1
551507d9ee47f468e6564a674de8c61d81b6fa84

SHA256
b899fab2469f4c847e9fe0b140eefcce827d635921df2e3b22fa5ca4d018648e

SHA512
51d6cedba362cb09bb401ac07ff4e99cca1d400f2acf13f45e254f8ff8c62eb997956eb69db0a34dee58dcad4f7ae4e4ebd2b26f78b39e1e84ec6d6ee27d69bb

Download Submit
memory/2080-23-0x0000000074350000-0x0000000074A3E000-memory.dmp

Filesize
6.9MB

Download
memory/2080-0-0x000000007435E000-0x000000007435F000-memory.dmp

Filesize
4KB

Download
memory/2080-2-0x00000000002E0000-0x00000000002EA000-memory.dmp

Filesize
40KB

Download
memory/2080-1-0x0000000000290000-0x00000000002D6000-memory.dmp

Filesize
280KB

Download
memory/2080-3-0x0000000074350000-0x0000000074A3E000-memory.dmp

Filesize
6.9MB

Download
memory/2640-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2640-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2640-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2640-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2640-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2640-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2640-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2684-22-0x0000000074350000-0x0000000074A3E000-memory.dmp

Filesize
6.9MB

Download
memory/2684-21-0x0000000001310000-0x0000000001356000-memory.dmp

Filesize
280KB

Download
memory/2684-37-0x0000000074350000-0x0000000074A3E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads