Overview

overview

10

Static

static

8

5bd66ab2a2...2.xlsb

windows7_x64

10

5bd66ab2a2...2.xlsb

windows10-2004_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    29-03-2022 14:05

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Report Analysis Logs

General

  • Target

    5bd66ab2a24a23d80d2f2a03965df7ce8a2de1f0ca1922d0846a006d96508642.xlsb

  • Size

    357KB

  • MD5

    56da90d2ce439a52f58bc425ec9ff8cb

  • SHA1

    be5735ab106498b2bc663cf62b8a1298b66f2f1d

  • SHA256

    5bd66ab2a24a23d80d2f2a03965df7ce8a2de1f0ca1922d0846a006d96508642

  • SHA512

    a7c2e735b0bb564dc1338d6027cb4551047418a6f1dd76bc2ff07c6e82c31396e003005bdb0ac19b2d99101f269f3fd96154f91814b1a23256da001445e7980f

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://bemojo.com/ds/161120.gif

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • 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.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 5 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 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\5bd66ab2a24a23d80d2f2a03965df7ce8a2de1f0ca1922d0846a006d96508642.xlsb"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2680
    • 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 3660
      2⤵
      • Process spawned suspicious child process
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\system32\dwwin.exe
        C:\Windows\system32\dwwin.exe -x -s 3660
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        PID:2168
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2680 -s 1708
      2⤵
      • Process spawned unexpected child process
      • Program crash
      PID:1816
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 476 -p 2680 -ip 2680
    1⤵
      PID:4688

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/2040-135-0x0000000000000000-mapping.dmp
      Download
    • memory/2040-142-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2040-143-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2040-144-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2040-145-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2168-141-0x0000000000000000-mapping.dmp
      Download
    • memory/2680-130-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2680-131-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2680-132-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2680-133-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2680-134-0x00007FFABBDD0000-0x00007FFABBDE0000-memory.dmp
      Filesize

      64KB

      Download