asyncrat | ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
15/08/2024, 02:41

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General

Target

ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe
Size

267KB
MD5

199e8ac4b184966f846b91fd3908ff46
SHA1

54e123336b9f44fe6c1c4953dab6f4607a6738b9
SHA256

ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81
SHA512

e3d4f4456b703e7e2f54113284af139fe502ba1658c5d539964213d64e68b24b325191bcb2297b7dff3fdf1415bb2bd304863d6081e99319a406327562006716
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/z:WFzDqa86hV6uRRqX1evPlwAL

Score

10^/10

asyncrat discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

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 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/2948-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2948-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2948-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2948-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2948-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
1816	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 2948	1816	HiPatchService.exe	37

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	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2888	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1816	HiPatchService.exe
1816	HiPatchService.exe
1816	HiPatchService.exe
1816	HiPatchService.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe
2948	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1816	HiPatchService.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 1816	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	31
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2564 wrote to memory of 2436	2564	ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe	32
PID 2436 wrote to memory of 2888	2436	cmd.exe	34
PID 2436 wrote to memory of 2888	2436	cmd.exe	34
PID 2436 wrote to memory of 2888	2436	cmd.exe	34
PID 2436 wrote to memory of 2888	2436	cmd.exe	34
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2928	1816	HiPatchService.exe	35
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2796	1816	HiPatchService.exe	36
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37
PID 1816 wrote to memory of 2948	1816	HiPatchService.exe	37

C:\Users\Admin\AppData\Local\Temp\ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe
"C:\Users\Admin\AppData\Local\Temp\ae9f117028edbbecbd1144b20b10be7b1bb639b56690aa3b26735f4d578f5e81.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564
- 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:1816
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2928
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2796
- - 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:2948
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2888

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
267KB

MD5
4b8507b312e87a529cb31a9881e19fad

SHA1
810e6621d6b3b355d8dc7d22c2fc14da8f154439

SHA256
ae231544f8e3920512cd294265e9fffe02f50be10b0a80642135dc56b1422433

SHA512
29afba8d3b95d8e4e7ffe8d446f043ef29aec6e927c42f32fc07791883d8f7ba8a84d5fd49d43e4fdfefe741da61cfa76c92c6c0cd8474dd693177cc45790cd9

Download Submit
memory/1816-37-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/1816-22-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/1816-23-0x0000000000270000-0x00000000002B6000-memory.dmp

Filesize
280KB

Download
memory/2564-24-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2564-3-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2564-2-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/2564-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2564-1-0x0000000000EA0000-0x0000000000EE6000-memory.dmp

Filesize
280KB

Download
memory/2948-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2948-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2948-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2948-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2948-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2948-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2948-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download