Overview

overview

8

Static

static

8

IRS_Tax_8346349.xls

windows7_x64

6

IRS_Tax_8346349.xls

windows10_x64

6

Analysis

  • max time kernel
    75s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    09/07/2020, 07:06

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Report Analysis Logs

General

  • Target

    IRS_Tax_8346349.xls

  • Size

    85KB

  • MD5

    18354afc1b95a90fcd02d608c2306a4a

  • SHA1

    3b864eb00b8cb4303486476d67c762d46045dbb3

  • SHA256

    7b18c2d4f575a034a2e175de3095170513e0f14ae2be151a0919ec569cb91a8c

  • SHA512

    c10237937b16367640eca7a9b0221641a2e2154f6e7a20f9bdc62dd3522c23935d788d68c1dc6f0a8c47ea0984d217ab361021ee01a9452400fefec0ec549f65

Score
6/10

Malware Config

Signatures

  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • 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.

  • Suspicious use of WriteProcessMemory 4 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

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\IRS_Tax_8346349.xls"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:3588
    • 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 4368
      2⤵
      • Process spawned suspicious child process
      • Suspicious use of WriteProcessMemory
      PID:736
      • C:\Windows\system32\dwwin.exe
        C:\Windows\system32\dwwin.exe -x -s 4368
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3696

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3696-2-0x000001EAABA30000-0x000001EAABA31000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3696-3-0x000001EAABA30000-0x000001EAABA31000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3696-5-0x000001EAAC0D0000-0x000001EAAC0D1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3696-8-0x000001EAAC430000-0x000001EAAC431000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3696-9-0x000001EAAC430000-0x000001EAAC431000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3696-10-0x000001EAAC430000-0x000001EAAC431000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3696-11-0x000001EAAC010000-0x000001EAAC011000-memory.dmp

    Filesize

    4KB

    Download