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Analysis

  • max time kernel
    122s
  • max time network
    67s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    14/09/2022, 11:27

General

  • Target

    rfq#09234a.exe

  • Size

    800KB

  • MD5

    20397f2a5286e87f72a2b39edf048a89

  • SHA1

    cdc0de28872b5fa612d6ef931465466b626d09b4

  • SHA256

    e95541bc5dd30416ce2189fb79666814d4f236fdc67ab4dc3d69fd44c7e3a259

  • SHA512

    b083acdb4806a6794eae2bdf6e9fe9a5538d4e7656cfe2163cc94c854ddee939cb46a417311d93757fd1ad991f408752f1e2c3ca6e4830944ca750d3c97287e2

  • SSDEEP

    12288:Lzx1WrUdHL+NMvHRMieFKSb+oRo84x4GVP7ngG:XOgdiNGV7SbxpQ4GPL

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5576673774:AAF__hFRh9bcJV72HkFb-9eZR9JNNyuOmFM/sendMessage?chat_id=1194722650

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 4 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rfq#09234a.exe
    "C:\Users\Admin\AppData\Local\Temp\rfq#09234a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:896
      • 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
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1688

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/896-63-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/896-82-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/896-81-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/896-68-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/896-65-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/896-60-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/896-61-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1368-58-0x0000000005D90000-0x0000000005E0E000-memory.dmp

    Filesize

    504KB

  • memory/1368-59-0x0000000004320000-0x0000000004348000-memory.dmp

    Filesize

    160KB

  • memory/1368-54-0x0000000000AD0000-0x0000000000B9E000-memory.dmp

    Filesize

    824KB

  • memory/1368-57-0x0000000000720000-0x000000000072C000-memory.dmp

    Filesize

    48KB

  • memory/1368-56-0x0000000000550000-0x000000000056A000-memory.dmp

    Filesize

    104KB

  • memory/1368-55-0x0000000074E41000-0x0000000074E43000-memory.dmp

    Filesize

    8KB

  • memory/1688-72-0x00000000000D0000-0x00000000000EA000-memory.dmp

    Filesize

    104KB

  • memory/1688-74-0x00000000000D0000-0x00000000000EA000-memory.dmp

    Filesize

    104KB

  • memory/1688-77-0x00000000000D0000-0x00000000000EA000-memory.dmp

    Filesize

    104KB

  • memory/1688-79-0x00000000000D0000-0x00000000000EA000-memory.dmp

    Filesize

    104KB