Overview

overview

10

Static

static

10

beefa8b663...98.exe

windows7-x64

8

beefa8b663...98.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 02:09

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General

  • Target

    beefa8b66319f9f9e918e9b59f2abd98d5edd82d714f17072894e572ec003e98.exe

  • Size

    76KB

  • MD5

    2533de08d221342961e8f5382fd0357a

  • SHA1

    dabe6e7b5866e9742c08786352817156e80fe7f6

  • SHA256

    beefa8b66319f9f9e918e9b59f2abd98d5edd82d714f17072894e572ec003e98

  • SHA512

    83124312a2102fd3359a5ff46015a488b845cf533909101d82dc16139378da949479d8490ce27524150c73c896c4b5ce2277fcc115883d20b540dc1708357562

  • SSDEEP

    768:Z1zRSL+BoBxN9tpdC7EezJ0d8hPUtrFRtFtg3NojiwvuccA4iiKahtAZchhD6EWr:l3oBdk7ESuqhParNMKnFfiroZchxfSF

Score
8/10
persistence

Malware Config

Signatures

  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Creates a Windows Service
    persistence
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\beefa8b66319f9f9e918e9b59f2abd98d5edd82d714f17072894e572ec003e98.exe
    "C:\Users\Admin\AppData\Local\Temp\beefa8b66319f9f9e918e9b59f2abd98d5edd82d714f17072894e572ec003e98.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\beefa8b66319f9f9e918e9b59f2abd98d5edd82d714f17072894e572ec003e98.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3012
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 1
        3⤵
        • Runs ping.exe
        PID:4164
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "SRDSLZ"
    1⤵
      PID:2864
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "SRDSLZ"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2764
      • C:\Windows\SysWOW64\SRDSLZ.exe
        C:\Windows\system32\SRDSLZ.exe "c:\program files (x86)\240641640.dll",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1728
    • 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 --field-trial-handle=1748,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=4152 /prefetch:8
      1⤵
        PID:4528

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\Program Files (x86)\240641640.dll
        Filesize

        33KB

        MD5

        cfe61ee50c917c587a08fd4ac5b61849

        SHA1

        770e76f7cdeea081f7cca0a0ebea7f8231186398

        SHA256

        54077b9108eb2d7c4a539e553fe2071b44698cdb39da6ef59c64025cf1111906

        SHA512

        686aa2a6ddcda9640b1159dd56344601189f1fa78e72866d12902811a3ac67bb6f324d7588ebf6b2b79f6bfe9d92015298c1b0bc8858234027301bf2a0b67ddc

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      • C:\Windows\SysWOW64\SRDSLZ.exe
        Filesize

        60KB

        MD5

        889b99c52a60dd49227c5e485a016679

        SHA1

        8fa889e456aa646a4d0a4349977430ce5fa5e2d7

        SHA256

        6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

        SHA512

        08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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