Analysis

  • max time kernel
    62s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2022 19:54

General

  • Target

    New Enquiry.exe

  • Size

    1.2MB

  • MD5

    db8113681e395345f71223c1d18e40c4

  • SHA1

    617ab388348ce4fa1bd203caa5558e570467db11

  • SHA256

    d794c27fbcf5de096750f2be32587d19cab1364b6fdd86318685574dedeb5af4

  • SHA512

    70302b571a40585a2776b8686fc9ac507456a317d1ab22dd6c43eba028d15ce2bef9bde0bf694d007869cb474c78b2706fc203f3608816819e9034ef76465b92

  • SSDEEP

    24576:JxqZRqOIRqOMub30RfQVipC2mdQSDGSDFBi/txagaLNAJ4iTiwAAgEEY4:J3z0aiplJSDji1xawiiTQp

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325

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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New Enquiry.exe
    "C:\Users\Admin\AppData\Local\Temp\New Enquiry.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Users\Admin\AppData\Local\Temp\New Enquiry.exe
      "C:\Users\Admin\AppData\Local\Temp\New Enquiry.exe"
      2⤵
        PID:1688
      • C:\Users\Admin\AppData\Local\Temp\New Enquiry.exe
        "C:\Users\Admin\AppData\Local\Temp\New Enquiry.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1940
        • 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:536

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/536-72-0x0000000000090000-0x00000000000F6000-memory.dmp

      Filesize

      408KB

    • memory/536-82-0x0000000000DF0000-0x0000000000EAC000-memory.dmp

      Filesize

      752KB

    • memory/536-79-0x0000000000090000-0x00000000000F6000-memory.dmp

      Filesize

      408KB

    • memory/536-77-0x0000000000090000-0x00000000000F6000-memory.dmp

      Filesize

      408KB

    • memory/536-74-0x0000000000090000-0x00000000000F6000-memory.dmp

      Filesize

      408KB

    • memory/1444-59-0x0000000008170000-0x0000000008206000-memory.dmp

      Filesize

      600KB

    • memory/1444-56-0x00000000003A0000-0x00000000003B6000-memory.dmp

      Filesize

      88KB

    • memory/1444-55-0x0000000075D71000-0x0000000075D73000-memory.dmp

      Filesize

      8KB

    • memory/1444-57-0x00000000003D0000-0x00000000003DE000-memory.dmp

      Filesize

      56KB

    • memory/1444-58-0x0000000007FA0000-0x000000000806C000-memory.dmp

      Filesize

      816KB

    • memory/1444-54-0x0000000000A60000-0x0000000000BA2000-memory.dmp

      Filesize

      1.3MB

    • memory/1940-60-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1940-68-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1940-65-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1940-61-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1940-80-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1940-63-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1940-83-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB