asyncrat | bb3fd742b93a5d4543bc780ea94d68959ed6731c47bda30fd2d6d922a9d601b6

Analysis

max time kernel
6s
max time network
19s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22-04-2024 01:12

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General

Target

decoded.ps1
Size

610KB
MD5

8f480e8836360a001daf9178cec3af30
SHA1

63282ae8eea6d7d25eef356d86385a8bef18b2e0
SHA256

bb3fd742b93a5d4543bc780ea94d68959ed6731c47bda30fd2d6d922a9d601b6
SHA512

371d0ccd4d4d04259aaca6a4ddd7dc6415258fe84be1f27d071369030f503aeead2ac3100dc31b745b951e0efa0122aef697673ddfccfe6df96699a1f8d9f176
SSDEEP

12288:Y9Xu2RZISzhlFbwJeBw2699/7lKDwJtkmr:6pPzzPFE75hKD8br

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

ghshe.duckdns.org:8797

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2428 created 3188	2428	powershell.exe	57

Async RAT payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1088-20-0x0000021A0DC90000-0x0000021A0DCA2000-memory.dmp	family_asyncrat
behavioral2/memory/1088-22-0x0000021A0DF70000-0x0000021A0DF80000-memory.dmp	family_asyncrat

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2428	powershell.exe
2428	powershell.exe
2428	powershell.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
2428	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91
PID 2428 wrote to memory of 1088	2428	powershell.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3188
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\decoded.ps1
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2428
- C:\Windows\System32\notepad.exe
  C:\Windows\System32\notepad.exe
  2⤵
  PID:1088

Network

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_54b102yq.4fk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1088-15-0x0000021A0C160000-0x0000021A0C172000-memory.dmp

Filesize
72KB

Download
memory/1088-24-0x0000021A0DF70000-0x0000021A0DF80000-memory.dmp

Filesize
64KB

Download
memory/1088-23-0x0000021A0DF70000-0x0000021A0DF80000-memory.dmp

Filesize
64KB

Download
memory/1088-22-0x0000021A0DF70000-0x0000021A0DF80000-memory.dmp

Filesize
64KB

Download
memory/1088-21-0x00007FFE6DE90000-0x00007FFE6E951000-memory.dmp

Filesize
10.8MB

Download
memory/1088-20-0x0000021A0DC90000-0x0000021A0DCA2000-memory.dmp

Filesize
72KB

Download
memory/2428-14-0x0000025C5CC20000-0x0000025C5CC76000-memory.dmp

Filesize
344KB

Download
memory/2428-18-0x00007FFE6DE90000-0x00007FFE6E951000-memory.dmp

Filesize
10.8MB

Download
memory/2428-19-0x0000025C5CC20000-0x0000025C5CC76000-memory.dmp

Filesize
344KB

Download
memory/2428-13-0x0000025C5C940000-0x0000025C5C995000-memory.dmp

Filesize
340KB

Download
memory/2428-12-0x0000025C40840000-0x0000025C40850000-memory.dmp

Filesize
64KB

Download
memory/2428-11-0x0000025C40840000-0x0000025C40850000-memory.dmp

Filesize
64KB

Download
memory/2428-10-0x00007FFE6DE90000-0x00007FFE6E951000-memory.dmp

Filesize
10.8MB

Download
memory/2428-5-0x0000025C5C7A0000-0x0000025C5C7C2000-memory.dmp

Filesize
136KB

Download