Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 23:07

General

  • Target

    8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe

  • Size

    91KB

  • MD5

    83045f4f72ded46ca32d8779bc413227

  • SHA1

    abc00ab6f2c9a05342219dd5fe859cfef807cf09

  • SHA256

    8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a

  • SHA512

    b7e03d54313990a77c2c8de12be44a706e6ea787266d3f8fa85181a2a4e9b0cf3de961086c43cb1f1fc1befce16f5a7cc664d67ae249c3809195fdde8caa2845

  • SSDEEP

    1536:QRVCaKgzbLc54hukfgvYnouy8zV1Ayj4m/QWR/Rlq88vlnRqPR/1aViDRknJM2S9:YjbLl/gvQoutR1Tj4mYWR/R4nkPR/1aO

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 5 IoCs
  • UPX dump on OEP (original entry point) 9 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 9 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 12 IoCs
  • Drops file in Program Files directory 18 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe
    "C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe"
    1⤵
    • Checks computer location settings
    • 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:1580
    • C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe
      "C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3216
      • C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe
        "C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4776
    • C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe
      "C:\Users\Admin\AppData\Local\Temp\8a1edd7a6dec7c28aec32e5de4e755c5d804ece35ceae18be40378fa01fdc34a.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\black horse beast masturbation feet blondie (Curtney).rar.exe

    Filesize

    2.0MB

    MD5

    4fec2951f26b1dbeffce54e3f03c113a

    SHA1

    27a682b1576c266f2741bb53574591e3184a4997

    SHA256

    5a39513ec1bc1a6a123b55639f647e6161141be0eaa4fcb02590d0b83ba8414e

    SHA512

    81c4ae58fc13417960b179f432388f7fb04a3d8663552c4ff2498cc81b23805a772311fd0dbb829156452102f87c2d8fe2323e3c95eba8510775d7d81649f612

  • memory/220-153-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/220-194-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1580-0-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/1580-187-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3216-35-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3216-191-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4776-156-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4776-197-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB