Overview

overview

10

Static

static

10

bf81b2e706...cb.exe

windows7-x64

9

bf81b2e706...cb.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 03:11

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General

  • Target

    bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe

  • Size

    807KB

  • MD5

    77141c566dfb6dd1c53eb347acccb744

  • SHA1

    1367b873c27feef575eb9f6b15ef6b968afa2315

  • SHA256

    bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb

  • SHA512

    9fabfff57329d1adfd1616598188dc25dd321b0405b96067de3dadd2d32b2976bc93dccbc3842fc0b3f36bc573b6acf9a91b43ef6a5024f2ad15430e4dcf7e62

  • SSDEEP

    12288:xEQoS+qhzMRei7BunvxPApWm0yLjB/oK+lFkNBBGgwTyBinv6uJjm8Syz4Q:xnzManvxIn0EX+lqnBLOyBinJJC8SNQ

Score
9/10
persistencespywarestealerupx

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.

    spywarestealer
  • UPX packed file 9 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 19 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\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe
    "C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.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:3192
    • C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe
      "C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe
        "C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4620
    • C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe
      "C:\Users\Admin\AppData\Local\Temp\bf81b2e70666edffca20d881464b6dfdaa036a5fc6ee7ed90f4ab5a82c14b2cb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\japanese kicking bukkake [milf] (Melissa).mpeg.exe
    Filesize

    2.0MB

    MD5

    1a9379df03c6e017bacb09f3a3f484ef

    SHA1

    1b38187f4a6fa1608fd7cc0b3d28164055775bdb

    SHA256

    40338f23d9bbffcb3ac3a3f9e0a3b64bfc4df066595f3bc7a46ff86c054db157

    SHA512

    03a47e0d79468891b310599208e6732e75fb519d2f309795ad0e83b9c1c88f1643b733252ef4d1a2a367925cd526c45d8ae0e2bf7ef40059917ab75eeefacf25

    Download Submit

  • memory/3192-0-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/3192-186-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/3292-20-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/3292-188-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/4372-151-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/4372-193-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/4620-149-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download

  • memory/4620-192-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

    Download