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Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/08/2022, 06:58

General

  • Target

    SecuriteInfo.com.W32.AIDetectNet.01.19595.exe

  • Size

    2.4MB

  • MD5

    43e203dd0117ad1c79dc400e5bbb710e

  • SHA1

    fb283a29b1979bec6114dd9fd8ae777f175a02d0

  • SHA256

    b59c940c2bd7745c6aeacb811f9ff924c6f0260b05e1dd4270a0e9444354def7

  • SHA512

    aab2b59e61a5221a26e149d07670c43ba58486233b07d5444758808ec0ea9788b6dab7ad063068acb981955336f87c047006f89b68975c2b3f6f0f089bec69ca

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5446953292:AAFkDq-HVam91vjV2SXkAWjbhfkBnxaPoa4/sendMessage?chat_id=1269002131

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.19595.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.19595.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2948
      • 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:4616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2948-135-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2948-137-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2948-140-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2948-144-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4616-142-0x0000000000B40000-0x0000000000BA6000-memory.dmp

    Filesize

    408KB

  • memory/4616-143-0x0000000005200000-0x000000000529C000-memory.dmp

    Filesize

    624KB

  • memory/4720-130-0x0000000000BD0000-0x0000000000E40000-memory.dmp

    Filesize

    2.4MB

  • memory/4720-131-0x0000000005C90000-0x0000000006234000-memory.dmp

    Filesize

    5.6MB

  • memory/4720-132-0x00000000057D0000-0x0000000005862000-memory.dmp

    Filesize

    584KB

  • memory/4720-133-0x00000000058A0000-0x00000000058C2000-memory.dmp

    Filesize

    136KB