Analysis

  • max time kernel
    159s
  • max time network
    161s
  • 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 13:43

General

  • Target

    8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db.exe

  • Size

    618KB

  • MD5

    0d59c5c5ab73017146054c4a6e8baa68

  • SHA1

    1b53f22c5c446733a30dbfb3b3006d27445d3b84

  • SHA256

    8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db

  • SHA512

    b6f2ecb61d84cf7229eb4d9aa8e26d358a59c922cccce1e868b16bcea5ae5843301f2fb7c85f8e2ed04d477d01dab37b7088bcaa936ee3413106480490ac615f

  • SSDEEP

    12288:ZLPZ3iFntfXoM5kfS067F1uLRKLXkoRHeU9f+iywXWtLhDCDZAAwp:b3yntzCfUpcLRk06eqBa9CDZAAwp

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 5 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 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 3 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db.exe
    "C:\Users\Admin\AppData\Local\Temp\8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Users\Admin\AppData\Local\Temp\8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db.exe
      "C:\Users\Admin\AppData\Local\Temp\8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3292
      • 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
        PID:4080
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4648
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
          4⤵
          • Executes dropped EXE
          PID:4736
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
          4⤵
          • Executes dropped EXE
          PID:4340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\WUDHost.exe.log

    Filesize

    224B

    MD5

    c19eb8c8e7a40e6b987f9d2ee952996e

    SHA1

    6fc3049855bc9100643e162511673c6df0f28bfb

    SHA256

    677e9e30350df17e2bc20fa9f7d730e9f7cc6e870d6520a345f5f7dc5b31f58a

    SHA512

    860713b4a787c2189ed12a47d4b68b60ac00c7a253cae52dd4eb9276dacafeae3a81906b6d0742c8ecfdfaa255777c445beb7c2a532f3c677a9903237ac97596

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    618KB

    MD5

    0d59c5c5ab73017146054c4a6e8baa68

    SHA1

    1b53f22c5c446733a30dbfb3b3006d27445d3b84

    SHA256

    8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db

    SHA512

    b6f2ecb61d84cf7229eb4d9aa8e26d358a59c922cccce1e868b16bcea5ae5843301f2fb7c85f8e2ed04d477d01dab37b7088bcaa936ee3413106480490ac615f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    618KB

    MD5

    0d59c5c5ab73017146054c4a6e8baa68

    SHA1

    1b53f22c5c446733a30dbfb3b3006d27445d3b84

    SHA256

    8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db

    SHA512

    b6f2ecb61d84cf7229eb4d9aa8e26d358a59c922cccce1e868b16bcea5ae5843301f2fb7c85f8e2ed04d477d01dab37b7088bcaa936ee3413106480490ac615f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    618KB

    MD5

    0d59c5c5ab73017146054c4a6e8baa68

    SHA1

    1b53f22c5c446733a30dbfb3b3006d27445d3b84

    SHA256

    8af01645a0b49a14a5659ddddad8dd28e55eb33c43bb5503530c5e72515ac5db

    SHA512

    b6f2ecb61d84cf7229eb4d9aa8e26d358a59c922cccce1e868b16bcea5ae5843301f2fb7c85f8e2ed04d477d01dab37b7088bcaa936ee3413106480490ac615f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe

    Filesize

    13KB

    MD5

    87c7263aa4cb3444ef282661c4587035

    SHA1

    5e879db395d5ec83d7477c04fbb2fa63c6b0a6d9

    SHA256

    e84385b30e77b96b9461e34993a399cdcefbdea475a1ef3eb974d0744a42b46c

    SHA512

    1bbd4d4caad626282802e22a51211f0eb6afb08406eb8ac7868b0c06496d661c2c6ef67a506bf25f2a8296bbce82825fe00d67eda0b3caa40c9f30b4008f3426

  • memory/756-138-0x0000000000000000-mapping.dmp

  • memory/756-151-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/756-141-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/756-142-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/3292-136-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/3292-135-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3292-134-0x0000000000000000-mapping.dmp

  • memory/3292-137-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4080-160-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4080-159-0x0000000000000000-mapping.dmp

  • memory/4080-162-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4080-163-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4328-133-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4328-152-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4328-132-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4340-153-0x0000000000000000-mapping.dmp

  • memory/4340-156-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4648-143-0x0000000000000000-mapping.dmp

  • memory/4648-147-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4648-146-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4736-148-0x0000000000000000-mapping.dmp

  • memory/4736-158-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB

  • memory/4736-157-0x0000000074870000-0x0000000074E21000-memory.dmp

    Filesize

    5.7MB