Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250210-en
  • resource tags

    arch:x64arch:x86image:win11-20250210-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17-02-2025 16:25

General

  • Target

    42.zip

  • Size

    41KB

  • MD5

    1df9a18b18332f153918030b7b516615

  • SHA1

    6c42c62696616b72bbfc88a4be4ead57aa7bc503

  • SHA256

    bbd05de19aa2af1455c0494639215898a15286d9b05073b6c4817fe24b2c36fa

  • SHA512

    6382ca9c307d66ab7566acf78b1afd44b18b24d766253e1dc1cb3a3c0be96ecf1f2042d6bd3332d49078ffee571cf98869c1284c1d3e5c1c7dc3e4c64f71af80

  • SSDEEP

    768:hzyVr8GSKL6O3QOXk/0u3wqOghrFCezL1VFJdbq2QTJTw02Q:hGx8DKXE//ZhhCirFi2cwK

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 38 IoCs
  • Suspicious use of SendNotifyMessage 38 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\42.zip
    1⤵
      PID:2908
    • C:\Windows\system32\BackgroundTransferHost.exe
      "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
      1⤵
      • Modifies registry class
      PID:5092
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:916
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjciIGluc3RhbGxkYXRldGltZT0iMTczOTE4MzgwMSIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNjU1NTYyMTc0MDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjUyMzE2NTEyMDkiLz48L2FwcD48L3JlcXVlc3Q-
        1⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        PID:1000
      • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
        "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:2600
      • C:\Windows\System32\Taskmgr.exe
        "C:\Windows\System32\Taskmgr.exe"
        1⤵
        • Checks SCSI registry key(s)
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2168

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\d434fe99-63e4-4a57-bfdb-84c8d45f5872.down_data

        Filesize

        555KB

        MD5

        5683c0028832cae4ef93ca39c8ac5029

        SHA1

        248755e4e1db552e0b6f8651b04ca6d1b31a86fb

        SHA256

        855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

        SHA512

        aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

      • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

        Filesize

        25KB

        MD5

        1abd1e317ff96d9e4febed225ffba66c

        SHA1

        1e14f4a4d025f8a319bafd4ffeaad054c5c12806

        SHA256

        981900d19ee7008b98cb9268e0ec359017ff524e0830ea28daa02b02ca094a52

        SHA512

        4f86fc984f67122a1c25954e57b3fc44051bee692e155069419f56c0533fd0137de3dc1f096cad8c0089b814cfaadfba1a236c4cef0fcb17fd910292d982d1f2

      • memory/2168-19-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-21-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-20-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-31-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-30-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-29-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-28-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-27-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-26-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB

      • memory/2168-25-0x000002265BD80000-0x000002265BD81000-memory.dmp

        Filesize

        4KB