Analysis

  • max time kernel
    74s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13-09-2022 11:02

General

  • Target

    bl draft shipping Documents.exe

  • Size

    1.2MB

  • MD5

    9525bd775591fc765660eeb64002741f

  • SHA1

    0cb836092ba969107916c7445c790876a61912a6

  • SHA256

    cd101d3d19d5e797d9a151c9c4dd1db497f8e4ec680a7fb99a69b6af36634445

  • SHA512

    4ecea438e61f1b5decde0218ccf38146fadbda35531fe8b79ddd5cd47014d185cff8c6d94e6f4e1aaa7478d12c20b2c9d392ccbfa642be97c1b272003bb3df10

  • SSDEEP

    24576:C5nVyP/M6tQ5Cr0qwvNIQFQdS6vK2NqM4:IVA/TtQclwvNICQpvK2NqF

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bl draft shipping Documents.exe
    "C:\Users\Admin\AppData\Local\Temp\bl draft shipping Documents.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Users\Admin\AppData\Local\Temp\bl draft shipping Documents.exe
      "C:\Users\Admin\AppData\Local\Temp\bl draft shipping Documents.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        • outlook_win_path
        PID:1064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1064-73-0x0000000000230000-0x0000000000296000-memory.dmp

    Filesize

    408KB

  • memory/1064-82-0x0000000001210000-0x00000000012CC000-memory.dmp

    Filesize

    752KB

  • memory/1064-80-0x0000000000230000-0x0000000000296000-memory.dmp

    Filesize

    408KB

  • memory/1064-78-0x0000000000230000-0x0000000000296000-memory.dmp

    Filesize

    408KB

  • memory/1064-75-0x0000000000230000-0x0000000000296000-memory.dmp

    Filesize

    408KB

  • memory/1132-59-0x0000000000E20000-0x0000000000E96000-memory.dmp

    Filesize

    472KB

  • memory/1132-54-0x0000000001260000-0x000000000139A000-memory.dmp

    Filesize

    1.2MB

  • memory/1132-55-0x0000000075561000-0x0000000075563000-memory.dmp

    Filesize

    8KB

  • memory/1132-56-0x00000000002F0000-0x000000000030A000-memory.dmp

    Filesize

    104KB

  • memory/1132-57-0x00000000007F0000-0x00000000007FC000-memory.dmp

    Filesize

    48KB

  • memory/1132-58-0x0000000005940000-0x0000000005A0C000-memory.dmp

    Filesize

    816KB

  • memory/1656-60-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1656-72-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1656-68-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1656-61-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1656-65-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1656-63-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1656-83-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB