asyncrat | 113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8

General

Target

113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe
Size

267KB
MD5

a4659dc2157ed87d0f1e6efb8e2fdbf7
SHA1

f7efacf8ada06e71fffa497009cd0b790e61d33b
SHA256

113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8
SHA512

f0d7c63b1130f21b051d34fe03d36e30c2acccf21446559581fbdb18a24901d83d26dd2248ddeb24eef10d91da31d440d8c6a7b0926c10926fa9282c79e13e62
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdC:WFzDqa86hV6uRRqX1evPlwAEdC

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 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/1052-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1052-35-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1052-34-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1052-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/1052-29-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2108	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2108 set thread context of 1052	2108	HiPatchService.exe	33

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	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.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
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe
1052	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2108	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	28
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2444 wrote to memory of 2276	2444	113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe	29
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33
PID 2108 wrote to memory of 1052	2108	HiPatchService.exe	33

C:\Users\Admin\AppData\Local\Temp\113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe
"C:\Users\Admin\AppData\Local\Temp\113ed17fc6dff4197896f75a26ec2548d2f955f8062e8e02301f76fd338612e8.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- 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:2108
- - 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:1052
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2276

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2512

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
C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
267KB

MD5
d5cfb1cfc362227ab8b748a13ebef1fb

SHA1
2225b07aa264361aa79ec075d19f4d83acf0d015

SHA256
9ae3b6a5b6f00a9d7508031d81e4f729d851cd24b1d4b5a01f9cf338ba6ae4cb

SHA512
1390c012ac3c4dac87092443614622539876f60d850ad7a367583ecb22af5c98ee6eaef97880ec3a2453dde6f05d34c86dddec5faee552e47cc9bb0ba7e8e27f

Download Submit
memory/1052-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1052-35-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1052-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1052-25-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1052-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1052-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1052-34-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1052-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2108-22-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-21-0x00000000008E0000-0x0000000000926000-memory.dmp

Filesize
280KB

Download
memory/2108-37-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2444-24-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2444-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2444-3-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2444-1-0x0000000000D20000-0x0000000000D66000-memory.dmp

Filesize
280KB

Download
memory/2444-2-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads