Overview

overview

6

Static

static

doc_pack-8...4.xlsb

windows7_x64

6

doc_pack-8...4.xlsb

windows10_x64

6

Analysis

  • max time kernel
    7s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    21/10/2020, 18:17

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General

  • Target
    doc_pack-83290394.xlsb
  • Size 21KB
  • Sample201021-tb4m8mgfa2
  • SHA256 bcd443b5ae4ee916f560b26cfc2871c6dd4db2341abca18d07bba3041df936c2
  • MD5 SHA1 SHA512
Score
6/10

Malware Config

Signatures

  • Process spawned suspicious child process 1 IoCs

    This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.

  • 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 8 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\doc_pack-83290394.xlsb"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE
      "C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4312
      2⤵
      • Process spawned suspicious child process
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\system32\dwwin.exe
        C:\Windows\system32\dwwin.exe -x -s 4312
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1928

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1928-3-0x000001A740A80000-0x000001A740A81000-memory.dmp
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        memory/1928-4-0x000001A740A80000-0x000001A740A81000-memory.dmp
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        memory/1928-6-0x000001A7412B0000-0x000001A7412B1000-memory.dmp
        Download

        memory/1928-9-0x000001A7416B0000-0x000001A7416B1000-memory.dmp
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        memory/1928-11-0x000001A7416B0000-0x000001A7416B1000-memory.dmp
        Download

        memory/1928-13-0x000001A741580000-0x000001A741581000-memory.dmp
        Download

        memory/1928-14-0x000001A741580000-0x000001A741581000-memory.dmp
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        memory/1928-15-0x000001A741580000-0x000001A741581000-memory.dmp
        Download

        memory/3672-0-0x00007FFDC0BD0000-0x00007FFDC1296000-memory.dmp
        Download