Analysis

  • max time kernel
    64s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-10-2022 15:37

General

  • Target

    6f5748c69eb521632a3ba9757852672895c983c0886e8cddaa4dd4266f2e5a46.exe

  • Size

    1.2MB

  • MD5

    b63bd686cca7a0de40ba595e1c55c3df

  • SHA1

    c8a7b28371decc264b410bf48beded50b8038a4c

  • SHA256

    6f5748c69eb521632a3ba9757852672895c983c0886e8cddaa4dd4266f2e5a46

  • SHA512

    c6f11a341630e6accfe78736f13286ab674a7095c14074fb1a84c96d5b587e8f79060d80957164760896347fcb85cf7708a9745fe22e9f5b6df86fcd0303752e

  • SSDEEP

    12288:c2iNIJ2uJUpVLOmO3/XAonActMpNgsUF2SEFvxnvXjNWODQLadmpA8SDhY+Cc0XL:c1nppUPA9HlUsvZoKNmOrT0XwJJl

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\6f5748c69eb521632a3ba9757852672895c983c0886e8cddaa4dd4266f2e5a46.exe
    "C:\Users\Admin\AppData\Local\Temp\6f5748c69eb521632a3ba9757852672895c983c0886e8cddaa4dd4266f2e5a46.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\6f5748c69eb521632a3ba9757852672895c983c0886e8cddaa4dd4266f2e5a46.exe
      "C:\Users\Admin\AppData\Local\Temp\6f5748c69eb521632a3ba9757852672895c983c0886e8cddaa4dd4266f2e5a46.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1988
      • 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:320

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/320-73-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/320-82-0x0000000000AE0000-0x0000000000B9C000-memory.dmp

    Filesize

    752KB

  • memory/320-80-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/320-78-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/320-75-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/1908-59-0x0000000000EE0000-0x0000000000F58000-memory.dmp

    Filesize

    480KB

  • memory/1908-54-0x00000000011E0000-0x0000000001310000-memory.dmp

    Filesize

    1.2MB

  • memory/1908-55-0x00000000753C1000-0x00000000753C3000-memory.dmp

    Filesize

    8KB

  • memory/1908-56-0x00000000005D0000-0x00000000005E8000-memory.dmp

    Filesize

    96KB

  • memory/1908-57-0x0000000000640000-0x000000000064C000-memory.dmp

    Filesize

    48KB

  • memory/1908-58-0x00000000054A0000-0x000000000556C000-memory.dmp

    Filesize

    816KB

  • memory/1988-60-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1988-72-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1988-68-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1988-61-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1988-65-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1988-63-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1988-83-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB