Analysis

  • max time kernel
    168s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    17/02/2022, 18:11

General

  • Target
    8c6d84464096e6d1849c689708516a8d.exe
  • Size 385KB
  • Sample220217-wsl8fseabl
  • SHA256 6370ffa17cea91839f8a40555da2ef41f0e97d539e4bdc60871a7783abcdd7f6
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • xloader

Version
  • 2.5

Campaign
  • ahc8

Decoy
  • 192451.com

  • wwwripostes.net

  • sirikhalsalaw.com

  • bitterbaybay.com

  • stella-scrubs.com

  • almanecermezcal.com

  • goodgood.online

  • translate-now.online

  • sincerefilm.com

  • quadrantforensics.com

  • johnfrenchart.com

  • plick-click.com

  • alnileen.com

  • tghi.xyz

  • 172711.com

  • maymakita.com

  • punnyaseva.com

  • ukash-online.com

  • sho-yururi-blog.com

  • hebergement-solidaire.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\8c6d84464096e6d1849c689708516a8d.exe
      "C:\Users\Admin\AppData\Local\Temp\8c6d84464096e6d1849c689708516a8d.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4020
      • C:\Users\Admin\AppData\Local\Temp\mgavd.exe
        C:\Users\Admin\AppData\Local\Temp\mgavd.exe C:\Users\Admin\AppData\Local\Temp\qkiged
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4716
        • C:\Users\Admin\AppData\Local\Temp\mgavd.exe
          C:\Users\Admin\AppData\Local\Temp\mgavd.exe C:\Users\Admin\AppData\Local\Temp\qkiged
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:2556
    • 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:4448
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\mgavd.exe"
        3⤵
          PID:5004
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1672
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1144

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1672-143-0x0000021651350000-0x0000021651360000-memory.dmp

          memory/1672-145-0x00000216540D0000-0x00000216540D4000-memory.dmp

          memory/1672-144-0x0000021651A20000-0x0000021651A30000-memory.dmp

          memory/2556-134-0x0000000000400000-0x0000000000429000-memory.dmp

          memory/2556-139-0x0000000000AE0000-0x0000000000AF1000-memory.dmp

          memory/2556-137-0x0000000000C00000-0x0000000000F4A000-memory.dmp

          memory/2556-138-0x000000000041D000-0x000000000041E000-memory.dmp

          memory/2620-140-0x0000000008E10000-0x0000000008F0C000-memory.dmp

          memory/2620-148-0x0000000008F10000-0x000000000902F000-memory.dmp

          memory/4448-141-0x0000000000B80000-0x0000000000B99000-memory.dmp

          memory/4448-142-0x0000000000960000-0x0000000000989000-memory.dmp

          memory/4448-146-0x0000000002BE0000-0x0000000002F2A000-memory.dmp

          memory/4448-147-0x0000000002930000-0x00000000029C0000-memory.dmp