Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03/04/2024, 19:05

General

  • Target

    1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.exe

  • Size

    332KB

  • MD5

    2c7509903bc0eade4f46babbfccb21f2

  • SHA1

    7085ca3f6ee7b953f01259586e9b900b42e4cdd0

  • SHA256

    1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b

  • SHA512

    6680b60a2ee0e8363c4b76426bc2b332eb7b377ffd701ad3262b75f06d024b6c634e8587dd75a5fae1aeefb17d8bf0a72977ce1f90e02c4e33d13c90066af29a

  • SSDEEP

    6144:bjluQoSsqaxIo5R4nM/Thz5bdboSK9OHAl5SjRfraLPhPRgqllyTPCYwjKpFGyNS:bEQoSx0q2ZfKsgLS9frghGqjyTPojKPQ

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 2 IoCs
  • 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\1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.exe
    "C:\Users\Admin\AppData\Local\Temp\1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.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:2044
    • C:\Users\Admin\AppData\Local\Temp\1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.exe
      "C:\Users\Admin\AppData\Local\Temp\1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Users\Admin\AppData\Local\Temp\1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.exe
        "C:\Users\Admin\AppData\Local\Temp\1a88a76e65ae59b5e70300048bcb2425db14698ceff32a6d9878d8422610438b.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\brasilian animal bukkake catfight sm .mpg.exe

          Filesize

          1017KB

          MD5

          9bce52e7018b771c2ec31500dd2ca931

          SHA1

          1027a7a3252910f3d74c300b987abe1880ab2c0f

          SHA256

          917dc1f8316e14f3cda2463ffc4e511f9e184b39350c277a7906a5eab9eacc56

          SHA512

          477d5bce98d16f183e71a2587693d4f6699e2446c581bba19145a0495f56278af644a7df76591addc307d21554db2416ec0bd5cb0f3b09eae5e6ab1a2d42f8cf

        • C:\debug.txt

          Filesize

          183B

          MD5

          c97782175e47a95d06fb869b454509fc

          SHA1

          bba54e6cec2d0dc0c7a04681d44909c7a36002f7

          SHA256

          259d4f047b29e70822150651a2a52de83ef6b0dbd1661cb7177769844f0e8bcd

          SHA512

          a79b3dcdd5a0c2c39067bcac09021e0295a3fa03616c9f11b2f192fc4f5f197d3e44f8b1c5e8a7f7c57c9523ffff00a1aa28dd022d7177e51923614036501322

        • memory/2044-0-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/2044-57-0x0000000005BF0000-0x0000000005C19000-memory.dmp

          Filesize

          164KB

        • memory/2400-58-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB

        • memory/2400-89-0x0000000004E10000-0x0000000004E39000-memory.dmp

          Filesize

          164KB

        • memory/2612-90-0x0000000000400000-0x0000000000429000-memory.dmp

          Filesize

          164KB