Analysis

  • max time kernel
    115s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 12:08

General

  • Target

    TrojanDropper.Win32.dll

  • Size

    80KB

  • MD5

    da876b1ccfc32e48447fb2bcd97d7100

  • SHA1

    caa2d84d33c8701408dbb04aa50929ec0cb39982

  • SHA256

    881fa82e7cd7a08691f6d8795c37e3edf2d9c134ee1dc01d3251775a0f04c503

  • SHA512

    8236977145e3419ede6c56d53be466376064ab94a888ad41309884080922892475bc13f3b1767f421241d89716cc2f7a853e3df27cc76dd7b838f8e53077b646

  • SSDEEP

    1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEZ9lpy:5dbwovEVyqgoZmZXWfIdQdRaefPslE

Malware Config

Signatures

  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Network Service Discovery 1 TTPs 9 IoCs

    Attempt to gather information on host's network.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\TrojanDropper.Win32.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\TrojanDropper.Win32.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Windows\SysWOW64\arp.exe
        arp -a
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:1592
      • C:\Windows\SysWOW64\arp.exe
        arp -s 10.127.0.1 4a-1f-70-1d-31-19
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:4156
      • C:\Windows\SysWOW64\arp.exe
        arp -s 10.127.255.255 63-08-c0-75-15-91
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:2628
      • C:\Windows\SysWOW64\arp.exe
        arp -s 37.27.61.184 c9-79-91-4c-eb-ae
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:3488
      • C:\Windows\SysWOW64\arp.exe
        arp -s 224.0.0.22 27-c5-98-c9-bd-2c
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:2776
      • C:\Windows\SysWOW64\arp.exe
        arp -s 224.0.0.251 5c-99-9d-00-a3-34
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:4836
      • C:\Windows\SysWOW64\arp.exe
        arp -s 224.0.0.252 43-ee-ab-06-36-5c
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:4044
      • C:\Windows\SysWOW64\arp.exe
        arp -s 239.255.255.250 c2-25-83-a6-86-d9
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:1764
      • C:\Windows\SysWOW64\arp.exe
        arp -s 255.255.255.255 b4-e9-28-57-96-d3
        3⤵
        • Network Service Discovery
        • System Location Discovery: System Language Discovery
        PID:2316
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3536 -s 704
        3⤵
        • Program crash
        PID:3032
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3536 -ip 3536
    1⤵
      PID:3476
    • 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 --field-trial-handle=3032,i,11251706013556949551,5157034131170452377,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:8
      1⤵
        PID:4024

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • memory/3536-0-0x0000000010000000-0x0000000010033000-memory.dmp

        Filesize

        204KB

      • memory/3536-2-0x0000000010000000-0x0000000010033000-memory.dmp

        Filesize

        204KB