Overview

overview

10

Static

static

8346.xls

windows7_x64

10

8346.xls

windows10_x64

10

Analysis

  • max time kernel
    136s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10/11/2020, 15:38

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General

  • Target
    8346.xls
  • Size 44KB
  • Sample201110-qq6653xrcn
  • SHA256 ed569d3fc9abed62ff99ad2f70d2c028c8ef978f27ca2f8207f4488ec7c01bd2
  • 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.

  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 4 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\8346.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:4756
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\ln3.vbs
      2⤵
      • Process spawned unexpected child process
      PID:576
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:672
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\ln3.vbs"
      2⤵
        PID:1176

    Network

          MITRE ATT&CK Enterprise v6

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          Downloads

          memory/4756-0-0x00007FFAEDD10000-0x00007FFAEE347000-memory.dmp
          Download