Overview

overview

10

Static

static

8

cancel_sub...4.xlsb

windows7_x64

10

cancel_sub...4.xlsb

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    19/05/2021, 18:24

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General

  • Target
    cancel_sub_JPL12345678901234.xlsb
  • Size 260KB
  • Sample210519-hce37drhmx
  • SHA256 49e315aa89bf10972518c3069a767c869bbf7027c298afd11ab21040285b3f9e
  • 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.

  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 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 SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 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\cancel_sub_JPL12345678901234.xlsb"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c certutil -decode C:\Users\Public\5015.x1 C:\Users\Public\5015.x2 && rundll32 C:\Users\Public\5015.x2,DF1
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Windows\system32\certutil.exe
        certutil -decode C:\Users\Public\5015.x1 C:\Users\Public\5015.x2
        3⤵
          PID:2464
        • C:\Windows\system32\rundll32.exe
          rundll32 C:\Users\Public\5015.x2,DF1
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3732
          • C:\Windows\SysWOW64\rundll32.exe
            rundll32 C:\Users\Public\5015.x2,DF1
            4⤵
            • Blocklisted process makes network request
            • Loads dropped DLL
            PID:3392

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2016-121-0x00007FFDEAD10000-0x00007FFDEBDFE000-memory.dmp
          Download

          memory/2016-122-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
          Download

          memory/2016-114-0x00007FF6A33B0000-0x00007FF6A6966000-memory.dmp
          Download

          memory/2016-123-0x000001A9E8330000-0x000001A9EA225000-memory.dmp
          Download

          memory/2016-118-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
          Download

          memory/2016-117-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
          Download

          memory/2016-116-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
          Download

          memory/2016-115-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
          Download