Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    22/11/2021, 12:03

General

  • Target
    7a35479eaff4fc34625ebc35787150be.exe
  • Size 1.0MB
  • Sample211122-n72bxsade2
  • SHA256 bfbe11d6ffb3c82c59ac2cf85176583ff2ea5449d926584a59181286611f48f3
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • xloader

Version
  • 2.5

Campaign
  • s9m3

C2
  • http://www.zhhctax.com/s9m3/

Decoy
  • the989project.com

  • freshmomrecipes.com

  • meesamila.com

  • pedradellamp.com

  • capefearvalleyjobs.com

  • active-liposomal.com

  • joungla.com

  • victorrialand.com

  • mrleighmcgill.com

  • carrollcountybird.club

  • bvnqst.website

  • smartbeagles.store

  • johnjwelsh.com

  • dustyscleaning.services

  • ian80.com

  • thrive-naturals.com

  • tausend-euro.info

  • dgwb6.com

  • ecran-thermique.com

  • enchantedeventsnh.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies registry key 1 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Users\Admin\AppData\Local\Temp\7a35479eaff4fc34625ebc35787150be.exe
      "C:\Users\Admin\AppData\Local\Temp\7a35479eaff4fc34625ebc35787150be.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\SysWOW64\logagent.exe
        C:\Windows\System32\logagent.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3696
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1984
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:400
          • C:\Windows\SysWOW64\reg.exe
            reg delete hkcu\Environment /v windir /f
            5⤵
            • Modifies registry key
            PID:312
          • C:\Windows\SysWOW64\reg.exe
            reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
            5⤵
            • Modifies registry key
            PID:3972
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
            5⤵
              PID:3656
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:896
          • C:\Windows\SysWOW64\reg.exe
            reg delete hkcu\Environment /v windir /f
            4⤵
            • Modifies registry key
            PID:1764
      • C:\Windows\SysWOW64\wlanext.exe
        "C:\Windows\SysWOW64\wlanext.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2864

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1920-133-0x00000000053D0000-0x000000000555C000-memory.dmp

          memory/1920-142-0x0000000002AA0000-0x0000000002B81000-memory.dmp

          memory/2728-119-0x0000000002361000-0x0000000002375000-memory.dmp

          memory/2728-118-0x0000000000590000-0x000000000063E000-memory.dmp

          memory/2864-137-0x00000000036D0000-0x00000000039F0000-memory.dmp

          memory/2864-135-0x0000000000B50000-0x0000000000B67000-memory.dmp

          memory/2864-136-0x00000000032E0000-0x0000000003309000-memory.dmp

          memory/2864-141-0x00000000034D0000-0x0000000003560000-memory.dmp

          memory/3696-131-0x00000000052A0000-0x00000000055C0000-memory.dmp

          memory/3696-132-0x0000000005110000-0x0000000005121000-memory.dmp

          memory/3696-128-0x0000000003230000-0x0000000003231000-memory.dmp

          memory/3696-129-0x0000000072480000-0x00000000724A9000-memory.dmp