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Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2024, 02:50

General

  • Target

    aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331.exe

  • Size

    765KB

  • MD5

    5205be9a501dae770c6e557b5fdaeebc

  • SHA1

    a8a34796e05ac4ff1a0b92bdbbaedc01e8cedfa5

  • SHA256

    aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331

  • SHA512

    e7177c8f6562363751dedf374195ed0c59ba478530ba58e2428a62ba40fbae73c9dc9f55cdf8890779a9a848c53d6fedd7bdb9658e995df7331d8eea6a05170d

  • SSDEEP

    12288:LXNrylgwbJqMBSlxaZmvB008Jz1vakTLAJnElBaSP6XQ2lfix4phRDiaZEAmD:MgwkMYxcmUzgkTL2FSPd2ExQhJ

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.britishcrowncourt.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @Hustle007ky1

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • Hawkeye family
  • Detected Nirsoft tools 11 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331.exe
    "C:\Users\Admin\AppData\Local\Temp\aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Users\Admin\AppData\Local\Temp\aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331.exe
      "C:\Users\Admin\AppData\Local\Temp\aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1904
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2708
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2788
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
            5⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:1700
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt

    Filesize

    102B

    MD5

    2715bcbe51c308593298c65e5494b1f9

    SHA1

    14f0592ae00704ff4cbbf27634a6c1036de7b6a1

    SHA256

    cdf881969a8102ce1ac5e237487d99c977de044aa756ab493dbe6d98090c74e9

    SHA512

    b03d2fe5c5bf1004e1aac95f543ef2f02cebde8e93232326a1a34f47fdfd4512168d4e9b3963a7d833cf68895a839acdac01bff2020252400218f8f05972369d

  • C:\Users\Admin\AppData\Local\Temp\holderwb.txt

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • \Users\Admin\AppData\Roaming\Windows Update.exe

    Filesize

    765KB

    MD5

    5205be9a501dae770c6e557b5fdaeebc

    SHA1

    a8a34796e05ac4ff1a0b92bdbbaedc01e8cedfa5

    SHA256

    aca540b3ad20e1fd49ec550107eff0c164990de1067a9542daf615465f82c331

    SHA512

    e7177c8f6562363751dedf374195ed0c59ba478530ba58e2428a62ba40fbae73c9dc9f55cdf8890779a9a848c53d6fedd7bdb9658e995df7331d8eea6a05170d

  • memory/1700-52-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1700-54-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1700-53-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1904-4-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-10-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1904-6-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-14-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-16-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/1904-7-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-12-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-17-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/1904-5-0x0000000000400000-0x0000000000494000-memory.dmp

    Filesize

    592KB

  • memory/1904-29-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/1904-20-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2360-18-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/2360-15-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2360-1-0x00000000011C0000-0x0000000001288000-memory.dmp

    Filesize

    800KB

  • memory/2360-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/2360-2-0x00000000001E0000-0x00000000001F4000-memory.dmp

    Filesize

    80KB

  • memory/2360-19-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2360-3-0x0000000000240000-0x0000000000248000-memory.dmp

    Filesize

    32KB

  • memory/2648-56-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2648-55-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2648-63-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2708-30-0x0000000001300000-0x00000000013C8000-memory.dmp

    Filesize

    800KB

  • memory/2708-31-0x0000000000460000-0x0000000000474000-memory.dmp

    Filesize

    80KB

  • memory/2788-51-0x0000000000D10000-0x0000000000D18000-memory.dmp

    Filesize

    32KB

  • memory/2788-41-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB