Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2024 06:28

General

  • Target

    Confirmation.exe

  • Size

    1.0MB

  • MD5

    c1770203c545b2bcfe82cb117b398a5f

  • SHA1

    4dc20a479217c8f93764e46a4475bda162b3e4ba

  • SHA256

    e0febedda6f3a66c50558d4ed1fc267fc2dcfcb1f828ea30793ad5189df5e093

  • SHA512

    e93b2c552a3b423f6d06136ccef9aee2b66fefb24424049996c193cb157d1a204ca11555be5fb8450d915ea4ae0c7c96ccd8c98a9e9fe5c56d9369ff396d02df

  • SSDEEP

    24576:O3msSKhttyzWFKhIX6QKyerEGP/imH9rtqTWpvHLXo2:ezFht7pKTpEkZdrta2D1

Malware Config

Signatures

  • HawkEye

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

  • Hawkeye family
  • Detected Nirsoft tools 10 IoCs

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

  • NirSoft MailPassView 7 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Executes dropped EXE 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 3 IoCs

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

  • AutoIT Executable 17 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 20 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2376
      • 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"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:2620
      • 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"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1548
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn 6177796F64776774676C6361 /tr "C:\Users\Admin\tvjmiwcczlcg\toxexgzudyjp.exe" /sc minute /mo 1 /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1956
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {95C0C767-F9D0-4672-BFEF-B0BD646370ED} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Users\Admin\tvjmiwcczlcg\toxexgzudyjp.exe
      C:\Users\Admin\tvjmiwcczlcg\toxexgzudyjp.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1964
    • C:\Users\Admin\tvjmiwcczlcg\toxexgzudyjp.exe
      C:\Users\Admin\tvjmiwcczlcg\toxexgzudyjp.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\tvjmiwcczlcg\toxexgzudyjp.exe

    Filesize

    1.0MB

    MD5

    c1770203c545b2bcfe82cb117b398a5f

    SHA1

    4dc20a479217c8f93764e46a4475bda162b3e4ba

    SHA256

    e0febedda6f3a66c50558d4ed1fc267fc2dcfcb1f828ea30793ad5189df5e093

    SHA512

    e93b2c552a3b423f6d06136ccef9aee2b66fefb24424049996c193cb157d1a204ca11555be5fb8450d915ea4ae0c7c96ccd8c98a9e9fe5c56d9369ff396d02df

  • memory/468-54-0x00000000008D0000-0x0000000000AB9000-memory.dmp

    Filesize

    1.9MB

  • memory/468-55-0x00000000008D0000-0x0000000000AB9000-memory.dmp

    Filesize

    1.9MB

  • memory/1548-38-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1548-30-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1548-31-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1708-1-0x00000000000A0000-0x00000000000A1000-memory.dmp

    Filesize

    4KB

  • memory/1708-41-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-50-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-48-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-24-0x00000000000A0000-0x00000000000A1000-memory.dmp

    Filesize

    4KB

  • memory/1708-47-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-21-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-0-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-26-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-51-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-42-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-53-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-56-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-57-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-58-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-39-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1708-40-0x00000000013B0000-0x0000000001599000-memory.dmp

    Filesize

    1.9MB

  • memory/1964-45-0x00000000002F0000-0x00000000004D9000-memory.dmp

    Filesize

    1.9MB

  • memory/1964-46-0x00000000002F0000-0x00000000004D9000-memory.dmp

    Filesize

    1.9MB

  • memory/2376-2-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2376-25-0x0000000073CA2000-0x0000000073CA4000-memory.dmp

    Filesize

    8KB

  • memory/2376-22-0x0000000073CA0000-0x000000007424B000-memory.dmp

    Filesize

    5.7MB

  • memory/2376-13-0x0000000073CA2000-0x0000000073CA4000-memory.dmp

    Filesize

    8KB

  • memory/2376-29-0x0000000073CA0000-0x000000007424B000-memory.dmp

    Filesize

    5.7MB

  • memory/2376-3-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2376-9-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2376-10-0x0000000000400000-0x0000000000488000-memory.dmp

    Filesize

    544KB

  • memory/2376-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2620-28-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2620-23-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2620-18-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2620-20-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB