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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2024, 08:52

General

  • Target

    e14552ab2611f0bb677a15cb673ea7d5.exe

  • Size

    497KB

  • MD5

    e14552ab2611f0bb677a15cb673ea7d5

  • SHA1

    7d1157a982601536c840c88c7776f495435bd9cd

  • SHA256

    146a13ff0619dc191a88422c0393601eaa51596b020e9c4244b9c4f2f1020297

  • SHA512

    9f413cdb38b9f21e9b0a2f8115d2285e25641f6ffd40358b96ddad1039a4845722220436463c8566d119cce5cf2f86c2569cdb52b5067e84117f42f44676315d

  • SSDEEP

    6144:jk5M5FaYJsX6GH8JadDFIMNQhUGVDAT4l+m/60+B:o92iH8JldDAT4lh/cB

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 6 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e14552ab2611f0bb677a15cb673ea7d5.exe
    "C:\Users\Admin\AppData\Local\Temp\e14552ab2611f0bb677a15cb673ea7d5.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Windows\Rfybea.exe
      C:\Windows\Rfybea.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      PID:3556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 716
        3⤵
        • Program crash
        PID:4932
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3556 -ip 3556
    1⤵
      PID:3504

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Rfybea.exe

      Filesize

      497KB

      MD5

      e14552ab2611f0bb677a15cb673ea7d5

      SHA1

      7d1157a982601536c840c88c7776f495435bd9cd

      SHA256

      146a13ff0619dc191a88422c0393601eaa51596b020e9c4244b9c4f2f1020297

      SHA512

      9f413cdb38b9f21e9b0a2f8115d2285e25641f6ffd40358b96ddad1039a4845722220436463c8566d119cce5cf2f86c2569cdb52b5067e84117f42f44676315d

    • C:\Windows\Tasks\{62C40AA6-4406-467a-A5A5-DFDF1B559B7A}.job

      Filesize

      362B

      MD5

      1a7303fac3fa4bc2cd3d69fb7c20cc32

      SHA1

      0ec5f6c1ee75cb69a5c2f0b25904510caa6483a6

      SHA256

      823fa6a59352123debed6f616c23b640094ff1281372d97968ca85fee34200e4

      SHA512

      02ebfd8cedb09eaf3126c0b908f4990ed31dd01c394f0916a09de73dde7019c658845ed1bd4973ccf109e194077863d1255b8121196c64d3a0234f3e03c50024

    • memory/3556-21-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/3556-143906-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/3556-40089-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/3556-35959-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/3556-12-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/3556-15-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/4724-5-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/4724-21119-0x0000000000400000-0x0000000000439000-memory.dmp

      Filesize

      228KB

    • memory/4724-0-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB

    • memory/4724-2-0x00000000005A0000-0x00000000005A1000-memory.dmp

      Filesize

      4KB

    • memory/4724-1-0x0000000000400000-0x000000000047E000-memory.dmp

      Filesize

      504KB