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10-08-2023 17:03

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12-10-2021 18:50

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12-10-2021 18:01

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Analysis

  • max time kernel
    1789s
  • max time network
    1799s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    06-10-2021 20:46

General

  • Target

    ycof.exe.dll

  • Size

    1.1MB

  • MD5

    54a3bcca6b1eb92adb299a46df941826

  • SHA1

    6988e010056d88985b8e8f8de06706327779d3ca

  • SHA256

    c4ab81d7b7d44dd6dfc4f2b69dbe3f22fbf23c1ae49ab8edac2d26f85ae4514d

  • SHA512

    4e4f10abf8a97f649060cb3eaa125a487141a42b87d2dc1449d87531d927031279bd7b48a3859ffa8f5d4400deea77022ecb00c61de8511756dc9c0d27e3f150

Score
10/10

Malware Config

Signatures

  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ycof.exe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ycof.exe.dll,#1
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2636
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        3⤵
          PID:3988

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/2636-115-0x0000000000000000-mapping.dmp
    • memory/2636-116-0x0000000072E70000-0x0000000072E9A000-memory.dmp
      Filesize

      168KB

    • memory/2636-117-0x0000000072E70000-0x00000000738A6000-memory.dmp
      Filesize

      10.2MB

    • memory/2636-118-0x00000000033E0000-0x00000000033E1000-memory.dmp
      Filesize

      4KB

    • memory/3988-119-0x0000000000000000-mapping.dmp
    • memory/3988-122-0x0000000000740000-0x000000000076A000-memory.dmp
      Filesize

      168KB