Analysis

  • max time kernel
    34s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-10-2022 23:33

General

  • Target

    640d26a67eb1438c3ea2371e196976e13454290aac77cf66692f3bb82d7c0b33.exe

  • Size

    509KB

  • MD5

    c7ece13890b374467b4857ce1afaf2e6

  • SHA1

    e27145f0208a85564052b66d83ef7223154f22d6

  • SHA256

    640d26a67eb1438c3ea2371e196976e13454290aac77cf66692f3bb82d7c0b33

  • SHA512

    46adbb990077c0dbb76c2c2282ce3ad5d36134c38d10195dd74ddacc4cd4103e4857920de0542d043c188dbacb3900f37bafe3a091745e089cb07d1017c36379

  • SSDEEP

    12288:yGZPq/wha6qc239Cf6mu57HFapiR9eJg+Fq085opbVq6:yGVL06j239m6R5782yF58qpb

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
  • 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\640d26a67eb1438c3ea2371e196976e13454290aac77cf66692f3bb82d7c0b33.exe
    "C:\Users\Admin\AppData\Local\Temp\640d26a67eb1438c3ea2371e196976e13454290aac77cf66692f3bb82d7c0b33.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:368
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
      2⤵
        PID:992
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:952
        • 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:1956

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/368-54-0x0000000000830000-0x00000000008B0000-memory.dmp

      Filesize

      512KB

    • memory/368-55-0x0000000000380000-0x0000000000386000-memory.dmp

      Filesize

      24KB

    • memory/368-56-0x0000000000390000-0x000000000039A000-memory.dmp

      Filesize

      40KB

    • memory/952-65-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/952-69-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/952-60-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/952-62-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/952-57-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/952-68-0x0000000076401000-0x0000000076403000-memory.dmp

      Filesize

      8KB

    • memory/952-58-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/952-80-0x0000000000400000-0x000000000046E000-memory.dmp

      Filesize

      440KB

    • memory/1956-72-0x0000000000110000-0x0000000000176000-memory.dmp

      Filesize

      408KB

    • memory/1956-75-0x0000000000110000-0x0000000000176000-memory.dmp

      Filesize

      408KB

    • memory/1956-77-0x0000000000110000-0x0000000000176000-memory.dmp

      Filesize

      408KB

    • memory/1956-79-0x0000000000C60000-0x0000000000D1C000-memory.dmp

      Filesize

      752KB

    • memory/1956-70-0x0000000000110000-0x0000000000176000-memory.dmp

      Filesize

      408KB