Analysis

  • max time kernel
    145s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250610-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/07/2025, 05:56

General

  • Target

    b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe

  • Size

    648KB

  • MD5

    247f7aa2f10bfc5b228a0ea4ed15273c

  • SHA1

    1cda820d5755d71007015aabbac1a32e8c2cc59e

  • SHA256

    b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf

  • SHA512

    8ce36b55ab0af3bc26a5a505f5799bfd409b1299d6099e6d2a6baaa9a17129b8d6fe480497d0b5f22c0d5118d46737b23dfabee7547ea2f1f9eed701e612b1ee

  • SSDEEP

    6144:O82p4pFHfzMepymgWPnviP6Koa0nArn20l96tCF2eKNBDRlC8HQQDhy5OwbYBwMY:Ip4pNfz3ymJnJ8QCFkxCaQTOlOM64c

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe
    "C:\Users\Admin\AppData\Local\Temp\b65fc816a150cf67400f3b736c5bd3a16c9402af72f7cb0bf7e40eed7b1fcddf.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Windows\SysWOW64\HelpMe.exe
      C:\Windows\system32\HelpMe.exe
      2⤵
      • Modifies WinLogon for persistence
      • Drops startup file
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops autorun.inf file
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:1188

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        • C:\$Recycle.Bin\S-1-5-21-2866795425-63786011-2927312124-1000\desktop.ini.exe

          Filesize

          567KB

          MD5

          9b99e6842f3d2e2c0c36ffcc2613d8f6

          SHA1

          428f538e10c4e4652ae17b883d01fcff84366849

          SHA256

          b892fb8eff26ee543844425795c8b0e8ca199d4b245588a234852412828d21ce

          SHA512

          2271b5953f6b17a02011da5493b0eeb8de6a16c85f96d67abb3bf1b2c0fd210ce33b85d0859db1a02d5e724b87e5b0b16db8134e1b288b55545c636a323fce36

        • C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe

          Filesize

          1.4MB

          MD5

          8caee687a6a759e3739ca5a55cfee189

          SHA1

          f7b37f65a4f2620ed5d2f96dac03cb07b0a9523e

          SHA256

          5deb1dc157c379adaaf874d9badb2859923dfbbb19a3a9e4ca6aac1ab4816f38

          SHA512

          7ac9803e9f372dffcd4e604a21e92b236515b44539e01be5d8511586360c4c9b4d628e65ee8c2a67445142ebdd6fa5ea0f5f4d9a59b289cc1bee70c6998e74d0

        • C:\Windows\SysWOW64\HelpMe.exe

          Filesize

          566KB

          MD5

          f00c97ff6b429e518b3b1eaa5c072d4c

          SHA1

          951dfbb4f8b4ce25ccef61bbabf450c4a11bdc36

          SHA256

          3bc026023f0d9b85e3f3c1c6304e24ab83076136d5ccdcdf857f3f7d901b60d8

          SHA512

          676b2b57d517f22f7f982696b8324f27583c8dc13a3028819c230827021b54f64e2cc7ac24793f12b78c1c0a8bc210bdb11a7c8b570844a1f70903e9a04c45ee

        • F:\AUTORUN.INF

          Filesize

          145B

          MD5

          ca13857b2fd3895a39f09d9dde3cca97

          SHA1

          8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

          SHA256

          cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

          SHA512

          55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

        • memory/1188-6-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/1188-56-0x0000000000400000-0x000000000047C000-memory.dmp

          Filesize

          496KB

        • memory/4536-0-0x00000000021E0000-0x00000000021E1000-memory.dmp

          Filesize

          4KB

        • memory/4536-1-0x0000000000460000-0x0000000000461000-memory.dmp

          Filesize

          4KB