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Analysis

  • max time kernel
    141s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2024, 05:31

General

  • Target

    $R3/dvflekzd.dll

  • Size

    328KB

  • MD5

    ef63a544e38c3a3f1f40d51cdd67466b

  • SHA1

    5f3e77446c880b9ddcce9dfb26442f2631d9b9b9

  • SHA256

    f35d0b4b42d3c8800f146e96924be72e6c3c4cdf5eebd5ae59127e276bbc12cc

  • SHA512

    83cdaac3504701319e07a14a18170813dd4914faa1b75e73ae5beeb23a44eb1cdee5b772d606de9938f99c4fe6808998677638970ed1c4639e58b5fa57effff9

  • SSDEEP

    3072:x4YhwY/+JeDLUsVQ59c2fRHwjVHqM5IZrqTMa4sb8qLoE+1:nh0ItV01fWHP5Erta4sblV+

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$R3\dvflekzd.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$R3\dvflekzd.dll,#1
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1908
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        RUNDLL32.EXE C:\Users\Admin\AppData\Local\Adobe\dvhmmpnk.dll,FilterSetEffectID
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:2124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1908-0-0x0000000010000000-0x0000000010054000-memory.dmp

    Filesize

    336KB

  • memory/1908-1-0x0000000010000000-0x0000000010054000-memory.dmp

    Filesize

    336KB

  • memory/2124-2-0x0000000010000000-0x0000000010054000-memory.dmp

    Filesize

    336KB

  • memory/2124-3-0x0000000010000000-0x0000000010054000-memory.dmp

    Filesize

    336KB