Analysis

  • max time kernel
    186s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 20:12

General

  • Target

    53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b.exe

  • Size

    689KB

  • MD5

    f146c3e256a3e0b7e875c74f706390fd

  • SHA1

    7bd9d13f55f5d1222efbb156a9a8a1b7d6a33c0d

  • SHA256

    53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b

  • SHA512

    9c926035f9b216bb351543e0f7a1b385f61d1d1434a98e376716eea11315776b2cff7f4d0305a7930ce2f45c99d8e0200687631fd930aa9114131c84da3493f8

  • SSDEEP

    12288:hw7yiW1QapxyRxVZMNA8/ewLVvmstH2wIaoGCCozpPsJs0F/XdVRDu:h6C1tzyRxVGN7/tVvzFhFaT0F/XdVR

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    noohkxueuadadesg

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 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 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 3 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b.exe
    "C:\Users\Admin\AppData\Local\Temp\53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Users\Admin\AppData\Local\Temp\53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b.exe
      "C:\Users\Admin\AppData\Local\Temp\53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b.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:4168
      • 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:2152
      • 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:2748
      • 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:332
        • 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:864
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
            4⤵
            • Executes dropped EXE
            PID:3444
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            PID:384

    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\Local\Temp\holderwb.txt

      Filesize

      3KB

      MD5

      f94dc819ca773f1e3cb27abbc9e7fa27

      SHA1

      9a7700efadc5ea09ab288544ef1e3cd876255086

      SHA256

      a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

      SHA512

      72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

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

      Filesize

      689KB

      MD5

      f146c3e256a3e0b7e875c74f706390fd

      SHA1

      7bd9d13f55f5d1222efbb156a9a8a1b7d6a33c0d

      SHA256

      53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b

      SHA512

      9c926035f9b216bb351543e0f7a1b385f61d1d1434a98e376716eea11315776b2cff7f4d0305a7930ce2f45c99d8e0200687631fd930aa9114131c84da3493f8

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

      Filesize

      689KB

      MD5

      f146c3e256a3e0b7e875c74f706390fd

      SHA1

      7bd9d13f55f5d1222efbb156a9a8a1b7d6a33c0d

      SHA256

      53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b

      SHA512

      9c926035f9b216bb351543e0f7a1b385f61d1d1434a98e376716eea11315776b2cff7f4d0305a7930ce2f45c99d8e0200687631fd930aa9114131c84da3493f8

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

      Filesize

      689KB

      MD5

      f146c3e256a3e0b7e875c74f706390fd

      SHA1

      7bd9d13f55f5d1222efbb156a9a8a1b7d6a33c0d

      SHA256

      53fcfc9974779e077e8c8701d052d58389eaca6897c71e328007dfd8fcd8701b

      SHA512

      9c926035f9b216bb351543e0f7a1b385f61d1d1434a98e376716eea11315776b2cff7f4d0305a7930ce2f45c99d8e0200687631fd930aa9114131c84da3493f8

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

      Filesize

      7KB

      MD5

      5b6409234f46215e3b133d5a52ec9845

      SHA1

      4c1d2a919016a16450d130f1553928ae7041da9b

      SHA256

      a07f6befe0fdf5d7cbbc25a3666a70700fd7faa78ba301b899cb5f20c95a7f75

      SHA512

      09b0412c7133f4af86e5f069f2cbd3c2f62371cb566e7beda1de6e300b02b6add2332b4c42e5b85c5456d9ee1e06094395ea147d48badf81676a474e3736bc09

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

      Filesize

      7KB

      MD5

      5b6409234f46215e3b133d5a52ec9845

      SHA1

      4c1d2a919016a16450d130f1553928ae7041da9b

      SHA256

      a07f6befe0fdf5d7cbbc25a3666a70700fd7faa78ba301b899cb5f20c95a7f75

      SHA512

      09b0412c7133f4af86e5f069f2cbd3c2f62371cb566e7beda1de6e300b02b6add2332b4c42e5b85c5456d9ee1e06094395ea147d48badf81676a474e3736bc09

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

      Filesize

      7KB

      MD5

      5b6409234f46215e3b133d5a52ec9845

      SHA1

      4c1d2a919016a16450d130f1553928ae7041da9b

      SHA256

      a07f6befe0fdf5d7cbbc25a3666a70700fd7faa78ba301b899cb5f20c95a7f75

      SHA512

      09b0412c7133f4af86e5f069f2cbd3c2f62371cb566e7beda1de6e300b02b6add2332b4c42e5b85c5456d9ee1e06094395ea147d48badf81676a474e3736bc09

    • memory/332-147-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/332-137-0x0000000000000000-mapping.dmp

    • memory/332-140-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/332-164-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/384-166-0x0000000000000000-mapping.dmp

    • memory/384-169-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/384-171-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/864-158-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/864-159-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/864-155-0x0000000000000000-mapping.dmp

    • memory/2152-141-0x0000000000000000-mapping.dmp

    • memory/2152-145-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2152-142-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2152-144-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2748-148-0x0000000000000000-mapping.dmp

    • memory/2748-151-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/2748-154-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/2748-149-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/2748-152-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/3444-160-0x0000000000000000-mapping.dmp

    • memory/3444-163-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/3444-170-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/4168-146-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/4168-136-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/4168-135-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/4168-134-0x0000000000000000-mapping.dmp

    • memory/4684-165-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/4684-132-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

    • memory/4684-133-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB