asyncrat | 01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e

General

Target

01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe
Size

268KB
MD5

66928a4d6e68f31b83e89434525de22e
SHA1

0d0b1854895eff34bc616538fc96417b573393e0
SHA256

01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e
SHA512

b83a354f12c99244029a0ad1dc5a646c6b1c9b71aed1047fc971fc2cfc6b24888ac16786d780921b80d7b1d473f3a04903cb7e015a132966af595fb585573e2b
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8DFA:WFzDqa86hV6uRRqX1evPlwAEQFA

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

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.

Processes:

resource	yara_rule
behavioral2/memory/4180-30-0x0000000000400000-0x0000000000430000-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

Processes:

01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe

Executes dropped EXE 1 IoCs

Processes:

HiPatchService.exe

pid process

4928 HiPatchService.exe

pid	process
4928	HiPatchService.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe

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"	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HiPatchService.exe

description pid process target process

PID 4928 set thread context of 4180 4928 HiPatchService.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4928 set thread context of 4180	4928	HiPatchService.exe	RegAsm.exe

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

Processes:

01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exeHiPatchService.execmd.exetimeout.exeRegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.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

Processes:

RegAsm.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

5048 timeout.exe

pid	process
5048	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

RegAsm.exe

pid	process
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe
4180	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.execmd.exeHiPatchService.exe

description	pid	process	target process
PID 1116 wrote to memory of 4928	1116	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe	HiPatchService.exe
PID 1116 wrote to memory of 4928	1116	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe	HiPatchService.exe
PID 1116 wrote to memory of 4928	1116	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe	HiPatchService.exe
PID 1116 wrote to memory of 4976	1116	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe	cmd.exe
PID 1116 wrote to memory of 4976	1116	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe	cmd.exe
PID 1116 wrote to memory of 4976	1116	01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe	cmd.exe
PID 4976 wrote to memory of 5048	4976	cmd.exe	timeout.exe
PID 4976 wrote to memory of 5048	4976	cmd.exe	timeout.exe
PID 4976 wrote to memory of 5048	4976	cmd.exe	timeout.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe
PID 4928 wrote to memory of 4180	4928	HiPatchService.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe
"C:\Users\Admin\AppData\Local\Temp\01a2033e54c2f3d30da2e197305e43241a4b2fb87dcd37a158dd32d9fe992c5e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116

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:4928

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:4180

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:4976

C:\Windows\SysWOW64\timeout.exe
timeout /t 180
3⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:5048

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2080

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
268KB

MD5
f0cd499b85b19da3312400cceaa095a7

SHA1
ad69745ba82585eced59c27180beb7da7851df56

SHA256
c917a53aacebf3c316ae32f348274a52b9044cf3bcbbbf075360575aa0b80bf2

SHA512
f75913aa18c7116517c59f5cf395c11e52ffa8c16fd37c0ce90c598224cc9f5aac60d80b1722230b5f4451c325e6391e2414fdc78951d923ee0d1ceb27d3ef50

Download Submit
memory/1116-4-0x0000000005390000-0x000000000539A000-memory.dmp

Filesize
40KB

Download
memory/1116-25-0x00000000752A0000-0x0000000075A50000-memory.dmp

Filesize
7.7MB

Download
memory/1116-0-0x00000000752AE000-0x00000000752AF000-memory.dmp

Filesize
4KB

Download
memory/1116-5-0x00000000752A0000-0x0000000075A50000-memory.dmp

Filesize
7.7MB

Download
memory/1116-6-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/1116-12-0x00000000752AE000-0x00000000752AF000-memory.dmp

Filesize
4KB

Download
memory/1116-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

Filesize
5.6MB

Download
memory/1116-3-0x0000000005200000-0x0000000005292000-memory.dmp

Filesize
584KB

Download
memory/1116-27-0x00000000752A0000-0x0000000075A50000-memory.dmp

Filesize
7.7MB

Download
memory/1116-1-0x00000000008F0000-0x0000000000936000-memory.dmp

Filesize
280KB

Download
memory/4180-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4928-28-0x00000000752A0000-0x0000000075A50000-memory.dmp

Filesize
7.7MB

Download
memory/4928-26-0x00000000752A0000-0x0000000075A50000-memory.dmp

Filesize
7.7MB

Download
memory/4928-32-0x00000000752A0000-0x0000000075A50000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads