asyncrat | f2254cee40cac5d924929dfb7978485b62e4b1328e1474fd5923e166038723ca

Analysis

max time kernel
142s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
07/10/2023, 14:19

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General

Target

ReklamX.ps1
Size

221KB
MD5

17ca355294ec4a7f4d58438aa2d5689a
SHA1

6e416c0eddaf223eb80588642adbbffc61581f1e
SHA256

5e06c4a5affdbe948ad2a924e652f195b3c5e423eb82a7a542a8036cce8d7723
SHA512

54e0bf4ff6bfe2573913b4e602fc39573a53252c3cdb93ef660e74ad619717ce38a39d713d15f9834a400d085afe3ffc823d778486b5904dfdf4cfdbe23a5b79
SSDEEP

3072:tAeXbtiLC0WR5X3Vw+HZp9hCyYtY7eeoXVCOljQdMhvSWm8+B0RjcGd1F9h/IleA:KeXbT0WRtVR5p9hCy9qvJljQdMhvFuX

Score

10^/10

asyncrat rdp2 rat

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

RDP2

nsairoet.kozow.com:2033

nsairoet.kozow.com:2034

nsairoet.kozow.com:2035

nsairoet.kozow.com:2022

nsairoet.kozow.com:2023

nsairoet.kozow.com:2024

Mutex

AsyncMutex_XXXX768645

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral4/memory/1840-14-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4552 set thread context of 1840	4552	powershell.exe	88

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4552	powershell.exe
4552	powershell.exe
1840	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4552	powershell.exe
Token: SeDebugPrivilege	1840	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1840	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88
PID 4552 wrote to memory of 1840	4552	powershell.exe	88

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\ReklamX.ps1
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1840

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3fngnybq.bgo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1840-22-0x0000000005A50000-0x0000000005A5A000-memory.dmp

Filesize
40KB

Download
memory/1840-21-0x00000000058B0000-0x0000000005942000-memory.dmp

Filesize
584KB

Download
memory/1840-28-0x00000000054E0000-0x00000000054F0000-memory.dmp

Filesize
64KB

Download
memory/1840-27-0x0000000075130000-0x00000000758E0000-memory.dmp

Filesize
7.7MB

Download
memory/1840-26-0x00000000064C0000-0x0000000006526000-memory.dmp

Filesize
408KB

Download
memory/1840-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1840-25-0x00000000069D0000-0x0000000006A6C000-memory.dmp

Filesize
624KB

Download
memory/1840-20-0x0000000005CA0000-0x0000000006244000-memory.dmp

Filesize
5.6MB

Download
memory/1840-19-0x00000000054E0000-0x00000000054F0000-memory.dmp

Filesize
64KB

Download
memory/1840-18-0x0000000075130000-0x00000000758E0000-memory.dmp

Filesize
7.7MB

Download
memory/4552-17-0x00007FF9CA3F0000-0x00007FF9CAEB1000-memory.dmp

Filesize
10.8MB

Download
memory/4552-5-0x00000207AB290000-0x00000207AB2B2000-memory.dmp

Filesize
136KB

Download
memory/4552-10-0x00007FF9CA3F0000-0x00007FF9CAEB1000-memory.dmp

Filesize
10.8MB

Download
memory/4552-13-0x00000207AB2D0000-0x00000207AB2E2000-memory.dmp

Filesize
72KB

Download
memory/4552-12-0x00000207AB2C0000-0x00000207AB2D0000-memory.dmp

Filesize
64KB

Download
memory/4552-11-0x00000207AB2C0000-0x00000207AB2D0000-memory.dmp

Filesize
64KB

Download