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Analysis

  • max time kernel
    1800s
  • max time network
    1799s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    03-08-2024 12:43

General

  • Target

    dl2.exe

  • Size

    849KB

  • MD5

    c2055b7fbaa041d9f68b9d5df9b45edd

  • SHA1

    e4bd443bd4ce9029290dcd4bb47cb1a01f3b1b06

  • SHA256

    342f04c4720590c40d24078d46d9b19d8175565f0af460598171d58f5ffc48f3

  • SHA512

    18905b75938b8af9468b1aa3ffbae796a139c2762e623aa6ffb9ec2b293dd04aa1f90d1ed5a7dbda7853795a3688e368121a134c7f63e527a8e5e7679301a1dc

  • SSDEEP

    12288:A3RY3yNqMRTF4q2rxHn2ot/81xpNQyjUXlmoe7ufjHAtjXD7r2:A3RY3R24q+xn/8Xp2yOl5fzQ/2

Score
10/10

Malware Config

Signatures

  • BazarBackdoor 64 IoCs

    Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

  • Tries to connect to .bazar domain 64 IoCs

    Attempts to lookup or connect to a .bazar domain, used by BazarBackdoor, Trickbot, and potentially others.

  • Unexpected DNS network traffic destination 64 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dl2.exe
    "C:\Users\Admin\AppData\Local\Temp\dl2.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:2532
  • C:\Users\Admin\AppData\Local\Temp\dl2.exe
    C:\Users\Admin\AppData\Local\Temp\dl2.exe {75C28CED-24E5-463D-B519-AD70CEDB9284}
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:2732

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2532-2-0x00000000001F0000-0x0000000000220000-memory.dmp

    Filesize

    192KB

  • memory/2532-8-0x0000000000250000-0x0000000000350000-memory.dmp

    Filesize

    1024KB

  • memory/2532-18-0x0000000000250000-0x0000000000350000-memory.dmp

    Filesize

    1024KB

  • memory/2732-10-0x0000000001D20000-0x0000000001D50000-memory.dmp

    Filesize

    192KB

  • memory/2732-17-0x0000000000396000-0x00000000003C1000-memory.dmp

    Filesize

    172KB