Analysis

  • max time kernel
    41s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08/09/2022, 09:14

General

  • Target

    10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe

  • Size

    671KB

  • MD5

    3c550a53d0fadc0c7a152a94765409a4

  • SHA1

    9ee3da492d6e6a567bde60c563dab74bdda2b01c

  • SHA256

    10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3

  • SHA512

    57a9464093c3c759ac3102c2229dddb6af5f1b70f44fd4965dbe4811e8fa197470a744fc7aeb7686dc56febf62fea62c5fdd383d49a1f5504a9bd3c63e867397

  • SSDEEP

    12288:hXADnVGA7M/3Cgugo7qaOURXbKYGB/YiLuXxL79GSmyVgxbzt1N/+EjTjY:9OXM/3CgumBUR+YGNYDjGSmcgdb3Y

Score
8/10
upx

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • UPX packed file 6 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe
    "C:\Users\Admin\AppData\Local\Temp\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Users\Admin\AppData\Local\Temp\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe
      "C:\Users\Admin\AppData\Local\Temp\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe" --crash-reporter-parent-id=784
      2⤵
        PID:2028
      • C:\Users\Admin\AppData\Local\Temp\Opera Installer\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe
        "C:\Users\Admin\AppData\Local\Temp\Opera Installer\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe" --version
        2⤵
        • Executes dropped EXE
        PID:892
      • C:\Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe
        "C:\Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe" --internal-version
        2⤵
        • Executes dropped EXE
        PID:1384
      • C:\Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe
        "C:\Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe" --stream
        2⤵
        • Executes dropped EXE
        PID:1672

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\Opera Installer\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe

            Filesize

            671KB

            MD5

            3c550a53d0fadc0c7a152a94765409a4

            SHA1

            9ee3da492d6e6a567bde60c563dab74bdda2b01c

            SHA256

            10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3

            SHA512

            57a9464093c3c759ac3102c2229dddb6af5f1b70f44fd4965dbe4811e8fa197470a744fc7aeb7686dc56febf62fea62c5fdd383d49a1f5504a9bd3c63e867397

          • C:\Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe

            Filesize

            35.9MB

            MD5

            36f8b3bb2ba2194db065637af8bf4453

            SHA1

            1262df44dcc47e5a81f17e559252247f9f35b914

            SHA256

            ac4dfaed56f4a4259befff7471d8d297e3d5c13951aad6b64280830dd36d1724

            SHA512

            7c22d94fcb5cba4669d53929a73240879875c26cfa43bf9135c1772e024fe8991618150fa26550e89fdb5a40e6e642d80ab81c523dba29f441c1b389a9fc37c6

          • C:\Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe

            Filesize

            35.9MB

            MD5

            36f8b3bb2ba2194db065637af8bf4453

            SHA1

            1262df44dcc47e5a81f17e559252247f9f35b914

            SHA256

            ac4dfaed56f4a4259befff7471d8d297e3d5c13951aad6b64280830dd36d1724

            SHA512

            7c22d94fcb5cba4669d53929a73240879875c26cfa43bf9135c1772e024fe8991618150fa26550e89fdb5a40e6e642d80ab81c523dba29f441c1b389a9fc37c6

          • \Users\Admin\AppData\Local\Temp\Opera Installer\10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3.exe

            Filesize

            671KB

            MD5

            3c550a53d0fadc0c7a152a94765409a4

            SHA1

            9ee3da492d6e6a567bde60c563dab74bdda2b01c

            SHA256

            10bc173f3bf4ac8151555dccb006278f5f51813203c503fb754c911f1be2bec3

            SHA512

            57a9464093c3c759ac3102c2229dddb6af5f1b70f44fd4965dbe4811e8fa197470a744fc7aeb7686dc56febf62fea62c5fdd383d49a1f5504a9bd3c63e867397

          • \Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe

            Filesize

            35.9MB

            MD5

            36f8b3bb2ba2194db065637af8bf4453

            SHA1

            1262df44dcc47e5a81f17e559252247f9f35b914

            SHA256

            ac4dfaed56f4a4259befff7471d8d297e3d5c13951aad6b64280830dd36d1724

            SHA512

            7c22d94fcb5cba4669d53929a73240879875c26cfa43bf9135c1772e024fe8991618150fa26550e89fdb5a40e6e642d80ab81c523dba29f441c1b389a9fc37c6

          • \Users\Admin\AppData\Local\Temp\Opera Installer\opera_installer_20220908111446.exe

            Filesize

            35.9MB

            MD5

            36f8b3bb2ba2194db065637af8bf4453

            SHA1

            1262df44dcc47e5a81f17e559252247f9f35b914

            SHA256

            ac4dfaed56f4a4259befff7471d8d297e3d5c13951aad6b64280830dd36d1724

            SHA512

            7c22d94fcb5cba4669d53929a73240879875c26cfa43bf9135c1772e024fe8991618150fa26550e89fdb5a40e6e642d80ab81c523dba29f441c1b389a9fc37c6

          • memory/784-66-0x0000000000A80000-0x0000000000BCB000-memory.dmp

            Filesize

            1.3MB

          • memory/784-69-0x00000000012E0000-0x000000000142B000-memory.dmp

            Filesize

            1.3MB

          • memory/784-57-0x0000000000110000-0x0000000000116000-memory.dmp

            Filesize

            24KB

          • memory/784-65-0x00000000012E0000-0x000000000142B000-memory.dmp

            Filesize

            1.3MB

          • memory/784-54-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

            Filesize

            8KB

          • memory/784-58-0x0000000000110000-0x0000000000116000-memory.dmp

            Filesize

            24KB

          • memory/784-68-0x0000000002830000-0x000000000297B000-memory.dmp

            Filesize

            1.3MB

          • memory/784-59-0x0000000000110000-0x0000000000116000-memory.dmp

            Filesize

            24KB

          • memory/892-64-0x0000000000060000-0x00000000001AB000-memory.dmp

            Filesize

            1.3MB

          • memory/2028-67-0x00000000012E0000-0x000000000142B000-memory.dmp

            Filesize

            1.3MB