Analysis

  • max time kernel
    170s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 15:24

General

  • Target

    f963857e00c6adad3a43c223f47219f00a342622e6771eb7209903f0e3b0aa44.exe

  • Size

    520KB

  • MD5

    7359a099f16c2e95c97a2475e82325d9

  • SHA1

    fea7ccc14ea7b641965a8de64834ffbf2514fcc0

  • SHA256

    f963857e00c6adad3a43c223f47219f00a342622e6771eb7209903f0e3b0aa44

  • SHA512

    0d6ca32763a1814252bc73aeb96aa04b4f81993f671bd463160a6c844a898e773407d5c36f591b6d012a5c995faf231a9c8a796f1b4d65b6080da39f8c1ff572

  • SSDEEP

    6144:sjXbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9n3I:oXQtqB5urTIoYWBQk1E+VF9mOx9Y

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 7 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Uses the VBS compiler for execution 1 TTPs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f963857e00c6adad3a43c223f47219f00a342622e6771eb7209903f0e3b0aa44.exe
    "C:\Users\Admin\AppData\Local\Temp\f963857e00c6adad3a43c223f47219f00a342622e6771eb7209903f0e3b0aa44.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1000
      • 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⤵
          PID:676
        • 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⤵
            PID:2136
          • 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" /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
            3⤵
              PID:760

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          102B

          MD5

          8120c465a98c9c44be839f5298912c42

          SHA1

          f5449130db117724d7681636d8967e4dfafaaff9

          SHA256

          7729419940ce5337f1bb5d16421c77b9e02301aae48ed9046b2c85d175c0bac3

          SHA512

          f87f3ea101f5bb4c7defb0c154b3f5e432fea9dd3530aaf0fe53e6e7b5cd9ca9fc5175c5d41c66cc2625c8e4076be2f1e1637cea8acda64069d4d327a505c7ae

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

          Filesize

          3KB

          MD5

          f94dc819ca773f1e3cb27abbc9e7fa27

          SHA1

          9a7700efadc5ea09ab288544ef1e3cd876255086

          SHA256

          a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

          SHA512

          72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

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

          Filesize

          520KB

          MD5

          7359a099f16c2e95c97a2475e82325d9

          SHA1

          fea7ccc14ea7b641965a8de64834ffbf2514fcc0

          SHA256

          f963857e00c6adad3a43c223f47219f00a342622e6771eb7209903f0e3b0aa44

          SHA512

          0d6ca32763a1814252bc73aeb96aa04b4f81993f671bd463160a6c844a898e773407d5c36f591b6d012a5c995faf231a9c8a796f1b4d65b6080da39f8c1ff572

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

          Filesize

          520KB

          MD5

          7359a099f16c2e95c97a2475e82325d9

          SHA1

          fea7ccc14ea7b641965a8de64834ffbf2514fcc0

          SHA256

          f963857e00c6adad3a43c223f47219f00a342622e6771eb7209903f0e3b0aa44

          SHA512

          0d6ca32763a1814252bc73aeb96aa04b4f81993f671bd463160a6c844a898e773407d5c36f591b6d012a5c995faf231a9c8a796f1b4d65b6080da39f8c1ff572

        • memory/676-143-0x0000000000000000-mapping.dmp

        • memory/760-146-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/760-141-0x0000000000000000-mapping.dmp

        • memory/760-142-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/760-147-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/760-149-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/1000-138-0x0000000074DF0000-0x00000000753A1000-memory.dmp

          Filesize

          5.7MB

        • memory/1000-140-0x0000000074DF0000-0x00000000753A1000-memory.dmp

          Filesize

          5.7MB

        • memory/1000-134-0x0000000000000000-mapping.dmp

        • memory/4308-137-0x0000000074DF0000-0x00000000753A1000-memory.dmp

          Filesize

          5.7MB

        • memory/4308-132-0x0000000074DF0000-0x00000000753A1000-memory.dmp

          Filesize

          5.7MB

        • memory/4308-133-0x0000000074DF0000-0x00000000753A1000-memory.dmp

          Filesize

          5.7MB