Analysis

  • max time kernel
    130s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 08:01

General

  • Target

    4fcc4a8faeecc1838cc405c39366575ad35f21153be5cc65c8dd005cd4190499.exe

  • Size

    5.5MB

  • MD5

    602371a144a5b0bc0313f25d467e81bf

  • SHA1

    8fc32c0d1dbbf9511e96db08d842c89dc3551398

  • SHA256

    4fcc4a8faeecc1838cc405c39366575ad35f21153be5cc65c8dd005cd4190499

  • SHA512

    9a884cec66e7ab212dd055dd54624cadfa45f3089f4f082a3d692634ccc7f4c3715e88e7138f1b746671439c5658df276f9afca221ad4de2a82562e8f7ec57b5

  • SSDEEP

    98304:xV2BpGSXTTHz4JBAUZLrHvkrQ2rRETNJGdIeC9HlXr2G3J:HSXTDz4JVHHvkrQ2rREhJGdIeOhr2GZ

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 6 IoCs
  • UPX packed file 1 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fcc4a8faeecc1838cc405c39366575ad35f21153be5cc65c8dd005cd4190499.exe
    "C:\Users\Admin\AppData\Local\Temp\4fcc4a8faeecc1838cc405c39366575ad35f21153be5cc65c8dd005cd4190499.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4180

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4180-0-0x0000000010000000-0x0000000010019000-memory.dmp
    Filesize

    100KB

  • memory/4180-3-0x00000000004D2000-0x00000000004D3000-memory.dmp
    Filesize

    4KB

  • memory/4180-2-0x0000000000400000-0x0000000000980A00-memory.dmp
    Filesize

    5.5MB

  • memory/4180-4-0x0000000000400000-0x0000000000980A00-memory.dmp
    Filesize

    5.5MB

  • memory/4180-5-0x0000000000400000-0x0000000000980A00-memory.dmp
    Filesize

    5.5MB

  • memory/4180-6-0x0000000000400000-0x0000000000980A00-memory.dmp
    Filesize

    5.5MB

  • memory/4180-7-0x0000000000400000-0x0000000000980A00-memory.dmp
    Filesize

    5.5MB

  • memory/4180-8-0x0000000000400000-0x0000000000980A00-memory.dmp
    Filesize

    5.5MB