Analysis

  • max time kernel
    154s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-04-2024 23:03

General

  • Target

    883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe

  • Size

    1.4MB

  • MD5

    6a27fc816bb62cf3b977145ccf584382

  • SHA1

    e6da5dcd7e650b3e8c64c476bfb6caf802a0afca

  • SHA256

    883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1

  • SHA512

    2f3aa540adfe6ac616c848b1e151ad83df2c2ee77d69d186ca0fd21acdc4b30ea73a07a5c94a7a5bab9eff8be9ed1b061df11a320a9b95aafe74457604df901d

  • SSDEEP

    24576:bH+l3V1OcNgFyTT8QVEdLeeUNtfi1iMDLHhobVzl7v/BcYUJoaLLMMCNc8cqFVa9:j63r7NrT1qjLOxl7vmjoaLLSc8BE

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 4 IoCs

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

  • Adds Run key to start application 2 TTPs 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 file in System32 directory 10 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe
    "C:\Users\Admin\AppData\Local\Temp\883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Users\Admin\AppData\Local\Temp\883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe
      "C:\Users\Admin\AppData\Local\Temp\883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2640
      • C:\Users\Admin\AppData\Local\Temp\883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe
        "C:\Users\Admin\AppData\Local\Temp\883e8f6240cdf56c46098676bcd9a5f7b319b54477c740f02059f1f89a2ec1b1.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Windows Sidebar\Shared Gadgets\tyrkish porn trambling licking (Melissa).mpg.exe

    Filesize

    1.6MB

    MD5

    c93cf4afaa3329e7cda4765538d2c5fa

    SHA1

    53e7f106131b348e54e9544438e71be824ef1b51

    SHA256

    c78b5d8ea1561bf1b5c313e34284e7b4dcfcb61e6251d719b1c93f60ad74f3ef

    SHA512

    4ba5f468be6212f059a6866ceb49a379b4e9d36cbd6c261ad89511b390de41a40aadd346483ef4ecc33b844178edea7703e1a746e4e262dfc4a620bb203e1ed9

  • memory/2612-35-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/2640-4-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/2640-30-0x0000000004920000-0x0000000004949000-memory.dmp

    Filesize

    164KB

  • memory/2976-0-0x0000000000400000-0x0000000000429000-memory.dmp

    Filesize

    164KB

  • memory/2976-3-0x0000000004750000-0x0000000004779000-memory.dmp

    Filesize

    164KB