Overview

overview

10

Static

static

document-37-1849.xls

windows7_x64

10

document-37-1849.xls

windows10_x64

10

Analysis

  • max time kernel
    145s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    01/06/2021, 17:20

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General

  • Target
    document-37-1849.xls
  • Size 187KB
  • Sample210601-l79vpc8era
  • SHA256 d1d0ac76e59b9e2a8ae3a433e0186d74fc61417c89fe5ee4b93c02faa1dc58f8
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Executes dropped EXE 1 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 behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

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\document-37-1849.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "%ProgramFiles(x86)%\Internet Explorer\ExtExport.exe" C:\ycjqFXSM\kO2NIybn\pDImcT.exe
      2⤵
      • Process spawned unexpected child process
      PID:3876
    • C:\ycjqFXSM\kO2NIybn\pDImcT.exe
      "C:\ycjqFXSM\kO2NIybn\pDImcT.exe" C:\ycjqFXSM\kO2NIybn ALHJ zqtRI
      2⤵
      • Executes dropped EXE
      PID:1552

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3952-114-0x00007FF77DB50000-0x00007FF781106000-memory.dmp
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        memory/3952-115-0x00007FFA08250000-0x00007FFA08260000-memory.dmp
        Download

        memory/3952-116-0x00007FFA08250000-0x00007FFA08260000-memory.dmp
        Download

        memory/3952-117-0x00007FFA08250000-0x00007FFA08260000-memory.dmp
        Download

        memory/3952-118-0x00007FFA08250000-0x00007FFA08260000-memory.dmp
        Download

        memory/3952-119-0x00007FFA08250000-0x00007FFA08260000-memory.dmp
        Download

        memory/3952-122-0x00007FFA28EA0000-0x00007FFA29F8E000-memory.dmp
        Download

        memory/3952-123-0x00007FFA26FA0000-0x00007FFA28E95000-memory.dmp
        Download