Overview

overview

10

Static

static

10

21c9fb3e60...77.exe

windows7-x64

9

21c9fb3e60...77.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • 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, 19:18

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General

  • Target
    21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe
  • Size 1.8MB
  • Sample240407-x1flbacd85
  • SHA256 21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
persistencespywarestealerupx

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 18 IoCs
  • UPX dump on OEP (original entry point) 20 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.

    spywarestealer
  • UPX packed file 20 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe
    "C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.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:4072
    • C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe
      "C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3688
      • C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe
        "C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1904
    • C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe
      "C:\Users\Admin\AppData\Local\Temp\21c9fb3e606c0799d2456e592c7543cf14bf5e17cc9f687932819047418ea477.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3140

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        hardcore public cock sm (Melissa,Janette).zip.exe
        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\hardcore public cock sm (Melissa,Janette).zip.exe
        • Size 378KB
        • SHA256 843b6c870ea068846cfc38803add16740da64489ee932359247b03875d19ddab
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/1904-186-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/3140-185-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/3688-102-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/3688-183-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-208-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-217-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-189-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-191-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-204-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-0-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-213-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-182-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-221-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-225-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-229-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-233-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-237-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-241-0x0000000000400000-0x000000000041E000-memory.dmp
        Download

        memory/4072-245-0x0000000000400000-0x000000000041E000-memory.dmp
        Download