Overview

overview

10

Static

static

8

Claim-2011...21.xls

windows7_x64

10

Claim-2011...21.xls

windows10_x64

10

Analysis

  • max time kernel
    1798s
  • max time network
    894s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    26-09-2021 18:40

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General

  • Target

    Claim-201194937-09242021.xls

  • Size

    409KB

  • MD5

    26ac2279ab58df05f8b2cadaabd01f63

  • SHA1

    35461492837533325059ed6d450b2e5442116c63

  • SHA256

    ad89e9db50db436f299e047bb5ecd3646f5fc625e14a676c84dcf5a59c3a5195

  • SHA512

    7e5e988d5fcbd8a8649f5e25c0b23e029aca1fddf848b2f01ed099f147555fde13fa8273c2a409393549604738ea17a7631a35ed12cd55249753c8bb5b76ca25

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://179.43.152.158/44465.8614204861.dat
xlm40.dropper

http://185.183.96.206/44465.8614204861.dat
xlm40.dropper

http://94.140.114.130/44465.8614204861.dat

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Claim-201194937-09242021.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Violaf.der
      2⤵
      • Process spawned unexpected child process
      PID:1528
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Violaf1.der
      2⤵
      • Process spawned unexpected child process
      PID:1600
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Violaf2.der
      2⤵
      • Process spawned unexpected child process
      PID:656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/656-68-0x0000000000000000-mapping.dmp

    Download

  • memory/1304-60-0x000000002F591000-0x000000002F594000-memory.dmp

    Filesize

    12KB

    Download

  • memory/1304-61-0x0000000070FD1000-0x0000000070FD3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1304-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1304-63-0x0000000005650000-0x0000000005652000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1528-64-0x0000000000000000-mapping.dmp

    Download

  • memory/1528-65-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1600-66-0x0000000000000000-mapping.dmp

    Download