Resubmissions

05/04/2024, 00:07

240405-aecwzafb2210

05/04/2024, 00:04

240405-acmy6aec6x10

Analysis

  • max time kernel
    155s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 00:04

General

  • Target
    $PLUGINSDIR/envdl.dll
  • Size 21KB
  • Sample240405-acmy6aec6x
  • SHA256 d12d71c87dbbe93303a1402e368e5e8827d512aa54bae78347077ca468abdbc6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • xloader

Version
  • 2.5

Campaign
  • nqn4

Decoy
  • posadaluna.com

  • ztwl2000.com

  • cvmu.net

  • marvellouslles.com

  • tiromiesu.com

  • allinsqadminn.com

  • 8straps.com

  • buyfood.store

  • jipodh.xyz

  • earthsidesoulalchemist.com

  • overiodize.xyz

  • weed.enterprises

  • minuseasy.com

  • konchord.com

  • 14attrayanteoffre.com

  • brasbux.com

  • aog.group

  • hairuno.com

  • solheimdesign.com

  • cosmetictreat.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader payload 4 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 61 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3496
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\envdl.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1452
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\envdl.dll,#1
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2228
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\envdl.dll,#1
          4⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:1672
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2316
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\rundll32.exe"
        3⤵
          PID:1620
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3728 --field-trial-handle=2228,i,521073434451423547,2311651514500527526,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4848

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/1672-1-0x0000000000400000-0x0000000000429000-memory.dmp

            memory/1672-2-0x00000000026B0000-0x00000000029FA000-memory.dmp

            memory/1672-5-0x0000000000400000-0x0000000000429000-memory.dmp

            memory/1672-6-0x00000000025F0000-0x0000000002601000-memory.dmp

            memory/2228-0-0x0000000010000000-0x0000000010009000-memory.dmp

            memory/2228-3-0x0000000010000000-0x0000000010009000-memory.dmp

            memory/2316-10-0x0000000000D90000-0x0000000000DA4000-memory.dmp

            memory/2316-8-0x0000000000D90000-0x0000000000DA4000-memory.dmp

            memory/2316-11-0x0000000000930000-0x0000000000959000-memory.dmp

            memory/2316-12-0x0000000002A20000-0x0000000002D6A000-memory.dmp

            memory/2316-13-0x0000000000930000-0x0000000000959000-memory.dmp

            memory/2316-15-0x00000000028F0000-0x0000000002980000-memory.dmp

            memory/3496-7-0x00000000029C0000-0x0000000002AEF000-memory.dmp

            memory/3496-16-0x00000000029C0000-0x0000000002AEF000-memory.dmp

            memory/3496-19-0x0000000002670000-0x000000000274F000-memory.dmp

            memory/3496-20-0x0000000002670000-0x000000000274F000-memory.dmp

            memory/3496-23-0x0000000002670000-0x000000000274F000-memory.dmp