asyncrat | b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f

General

Target

b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe
Size

270KB
MD5

e953cebbbeb7b97fac55a22a3446f25c
SHA1

37cb5ff6be0b7515c77ac12b4dddb8ffac6a9ad5
SHA256

b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f
SHA512

5cabbe976bd3cb270b8769d7071a17a4ea6e3d5f3f383456509a5b65ecac7a59cfd80b39350b626c84eadd91303167d1b23aa06e72d00756ea290fc6473fa99d
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdH:WFzDqa86hV6uRRqX1evPlwAEdH

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 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/1068-33-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1068-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1068-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1068-38-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1068-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2356	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2356 set thread context of 1068	2356	HiPatchService.exe	34

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	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.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 10 IoCs

pid	Process
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe
1068	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 2356	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	31
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2208 wrote to memory of 1108	2208	b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe	32
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34
PID 2356 wrote to memory of 1068	2356	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe
"C:\Users\Admin\AppData\Local\Temp\b30b417e0fdcb5a16bbc82304160abdbafe7736a5abce982bf327c49a8be162f.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2208
- 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:2356
- - 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:1068
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1108

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2680

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
270KB

MD5
82362ed18104c1d652b36f928b005be9

SHA1
22795d31c6af5fcaca2f4fd566a6d71f4deedb60

SHA256
38f21a1a8eebc059c788e00d1ae4307abe92a8fa8e5df55f4c70eb276a4bbafd

SHA512
44b99a30c0dfe6d6d1c6126e95755068bbd9526d38841df2ff180b9992915e0a720a0849fa800536e8bbf0c9036eceefe786f5626dd5ed64942e88f367f5440b

Download Submit
memory/1068-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-38-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-33-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1068-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2208-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2208-23-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2208-26-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2208-3-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2208-1-0x00000000009E0000-0x0000000000A26000-memory.dmp

Filesize
280KB

Download
memory/2208-2-0x00000000005B0000-0x00000000005BA000-memory.dmp

Filesize
40KB

Download
memory/2208-9-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

Filesize
4KB

Download
memory/2356-25-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download
memory/2356-22-0x0000000000F70000-0x0000000000FB6000-memory.dmp

Filesize
280KB

Download
memory/2356-39-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads