asyncrat | 13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743

Analysis

max time kernel
118s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 15:03

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General

Target

13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe
Size

270KB
MD5

0a958bb39869927c550fdb18b845c220
SHA1

080f14375eaaed153b5794d3c58930732d2164bb
SHA256

13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743
SHA512

b500e7d72aabbecf0a145ffece61bd6ffff19653c00e603e699c477a7c8d7c21b73c5992adfbfd10a31c7b61d0ce5084b59d65bfbea1db9ef87360d90c79f329
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdI:WFzDqa86hV6uRRqX1evPlwAEdI

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
Asyncrat family
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/2932-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2932-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2932-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2932-32-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2932-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
1928	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 2932	1928	HiPatchService.exe	32

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	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.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 11 IoCs

pid	Process
1928	HiPatchService.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe
2932	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	HiPatchService.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 1928	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	28
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 2792 wrote to memory of 2288	2792	13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe	29
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2528	1928	HiPatchService.exe	31
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32
PID 1928 wrote to memory of 2932	1928	HiPatchService.exe	32

C:\Users\Admin\AppData\Local\Temp\13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe
"C:\Users\Admin\AppData\Local\Temp\13c1a8461adcef928a0ce6335a6cd31f04d0346ac21f799164a6ec9b855ad743N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:1928
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:2528
- - 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:2932
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2288

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2696

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
271KB

MD5
e64d81e9811b9215a9b770f1b6fcc9f0

SHA1
923a0e5b694302f74276e6e9ada6a267ffd0230f

SHA256
161b09ab4474bf02e399d8ccd341fdb3aed51224227bfb3a21fb96874af02f7e

SHA512
4c14e2a7d5a12295332ef8b25d06f2b4f37bc51f2053fb15c03b740be8358b53e84b18d583d73d465f99de0ede647f38a2b282c6a18384ab1ec02ed89d4d24d4

Download Submit
memory/1928-21-0x00000000009D0000-0x0000000000A16000-memory.dmp

Filesize
280KB

Download
memory/1928-37-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/1928-22-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-2-0x0000000000200000-0x000000000020A000-memory.dmp

Filesize
40KB

Download
memory/2792-1-0x0000000000260000-0x00000000002A6000-memory.dmp

Filesize
280KB

Download
memory/2792-24-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/2792-3-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2932-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2932-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2932-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2932-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-32-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2932-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2932-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2932-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download