Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18/02/2021, 14:37

General

  • Target
    DHL Shipment Notification 7465649870.pdf.exe
  • Size 227KB
  • Sample210218-q3n7jtfdea
  • SHA256 dc5f7d89ab2465597ff7fa9f544326613aeaab2afa6e2e457ba5fc0da15bd450
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • formbook

C2
  • http://www.oeayzom.com/cna8/

Decoy
  • exceptionalhospital.com

  • agshorizon.com

  • sabaisurfing.com

  • kathrynprosser.com

  • news-roma.com

  • lareinadelosalisados.com

  • iregretnotcomingupwithit.com

  • dreamwrldrp.com

  • brickhallschool-ng.com

  • exgobal.com

  • ojcllc.com

  • pineviewsunrise.com

  • ru-joking.com

  • theparkplasticsurgery.com

  • mouthsecond.today

  • princessmasksandapparel.com

  • onlinedavetiyecim.com

  • animegirls.xyz

  • heicat.club

  • brazillianallstars.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Users\Admin\AppData\Local\Temp\DHL Shipment Notification 7465649870.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Shipment Notification 7465649870.pdf.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4768
      • C:\Users\Admin\AppData\Local\Temp\DHL Shipment Notification 7465649870.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\DHL Shipment Notification 7465649870.pdf.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3504
    • C:\Windows\SysWOW64\colorcpl.exe
      "C:\Windows\SysWOW64\colorcpl.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\DHL Shipment Notification 7465649870.pdf.exe"
        3⤵
          PID:3432

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1960-16-0x0000000000C70000-0x0000000000CFF000-memory.dmp

          memory/1960-15-0x00000000042F0000-0x0000000004610000-memory.dmp

          memory/1960-14-0x00000000005C0000-0x00000000005E9000-memory.dmp

          memory/1960-13-0x0000000000D30000-0x0000000000D49000-memory.dmp

          memory/2640-10-0x0000000004C30000-0x0000000004DBA000-memory.dmp

          memory/2640-8-0x0000000004B10000-0x0000000004C23000-memory.dmp

          memory/2640-17-0x0000000005B70000-0x0000000005CC8000-memory.dmp

          memory/3504-9-0x0000000000D10000-0x0000000000D20000-memory.dmp

          memory/3504-7-0x0000000000450000-0x0000000000460000-memory.dmp

          memory/3504-6-0x00000000009F0000-0x0000000000D10000-memory.dmp

          memory/3504-5-0x0000000000400000-0x0000000000429000-memory.dmp