asyncrat | a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2

General

Target

a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe
Size

271KB
MD5

9690ae3afbdef63ec410171b96060c0f
SHA1

6ef69525a8620b58dc07cc54bc8b98a697f56715
SHA256

a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2
SHA512

c82e53296ede016dd8f50373ac57536ab8159eb22cc7e0e682d006b32ea46f4bcd03dc15f35de706217755f79cbb3feeedaf7db6d7d3cab9c84294facdbdd4c3
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sd9:WFzDqa86hV6uRRqX1evPlwAEd9

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/1244-30-0x0000000000400000-0x0000000000430000-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	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe

Executes dropped EXE 1 IoCs

pid	Process
2624	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"	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2624 set thread context of 1244	2624	HiPatchService.exe	94

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	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.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
2504	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
2624	HiPatchService.exe
2624	HiPatchService.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	HiPatchService.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 2624	4676	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	87
PID 4676 wrote to memory of 2624	4676	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	87
PID 4676 wrote to memory of 2624	4676	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	87
PID 4676 wrote to memory of 3376	4676	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	88
PID 4676 wrote to memory of 3376	4676	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	88
PID 4676 wrote to memory of 3376	4676	a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe	88
PID 3376 wrote to memory of 2504	3376	cmd.exe	90
PID 3376 wrote to memory of 2504	3376	cmd.exe	90
PID 3376 wrote to memory of 2504	3376	cmd.exe	90
PID 2624 wrote to memory of 684	2624	HiPatchService.exe	93
PID 2624 wrote to memory of 684	2624	HiPatchService.exe	93
PID 2624 wrote to memory of 684	2624	HiPatchService.exe	93
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94
PID 2624 wrote to memory of 1244	2624	HiPatchService.exe	94

C:\Users\Admin\AppData\Local\Temp\a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe
"C:\Users\Admin\AppData\Local\Temp\a3de8df08e86ec6589d4356eeb2492f95b887a52628c31fb930d1b046b5330a2.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4676
- 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:2624
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:684
- - 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:1244
- 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:3376
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2504

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:4148

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
271KB

MD5
f5a5b7200899abaec2a512048c5b203d

SHA1
623ec88c942c00a797a20aa8998d54eff3720365

SHA256
fa5f0d1380384342715c88e47cf848c901924b9a5efdadf66799fbafefc1bc08

SHA512
27ad13dbf5a5b8c45cfa13668f81b3e24d8384fdfff26bfbec7c542bd70937d2799bee623cd8edb7d86ee6c520f41dac95da6c90e2ec25c7e64ad71d9bbf26c2

Download Submit
memory/1244-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2624-28-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/2624-26-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/2624-32-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4676-4-0x0000000004E20000-0x0000000004E2A000-memory.dmp

Filesize
40KB

Download
memory/4676-5-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4676-6-0x0000000004E10000-0x0000000004E1A000-memory.dmp

Filesize
40KB

Download
memory/4676-10-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/4676-3-0x0000000004EC0000-0x0000000004F52000-memory.dmp

Filesize
584KB

Download
memory/4676-25-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4676-27-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/4676-0-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/4676-2-0x0000000005470000-0x0000000005A14000-memory.dmp

Filesize
5.6MB

Download
memory/4676-1-0x00000000003D0000-0x0000000000416000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads