Analysis

  • max time kernel
    153s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 09:40

General

  • Target

    64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe

  • Size

    469KB

  • MD5

    281301ef0a83967024fb992845b603a0

  • SHA1

    5e84df4a2fe03de8bb25a916b5759abdcb446aa6

  • SHA256

    64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b

  • SHA512

    4cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5

  • SSDEEP

    12288:nvYoZfvS2EYifLrH8MdW9ibn0C+CKp45:nwoZfvWLxoyn0DCD5

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    4949solo

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 3 IoCs
  • Checks computer location settings 2 TTPs 1 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
  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe
    "C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe
      "C:\Users\Admin\AppData\Local\Temp\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4400
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1352
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          PID:3748
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4004
          • 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
            PID:4608
          • 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⤵
              PID:788

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b.exe.log

      Filesize

      594B

      MD5

      fdb26b3b547022b45cfaeee57eafd566

      SHA1

      11c6798b8a59233f404014c5e79b3363cd564b37

      SHA256

      2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0

      SHA512

      44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700

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

      Filesize

      774B

      MD5

      fc93eb9acb036dc0adcb7e9203deae84

      SHA1

      f6180e425e36b03252e18d9edb38c853a0546226

      SHA256

      8da330d49f43e46c3c34a7283f168ab399a37280b490503d7e7ca8ff34eaddae

      SHA512

      8ed8c6f1199da12f71819be099b2f129eced45e27e7bd7e1efbb07b09c7102bd31aaa9c39de85c9a583963b9331248d53d76eec0eb2b8ba7173ab0fdef25a620

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

      Filesize

      102B

      MD5

      98c21eda36e1b039a898577de56da9f6

      SHA1

      941587260de70b9efda5b0a46133277edf5f0770

      SHA256

      fa88869a320430cc0cdabfd53fabed5f270bc3d2c4470adbcfd3e4b697d3bfc6

      SHA512

      05ec83871c73b4392961b92b06fb189e4ba05495df58ce137319a756fc505264b5f0f6d27deaceb1a44aa301ca9fd6f887f1681c26b2174ecde126751c885c49

    • 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

      469KB

      MD5

      281301ef0a83967024fb992845b603a0

      SHA1

      5e84df4a2fe03de8bb25a916b5759abdcb446aa6

      SHA256

      64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b

      SHA512

      4cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5

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

      Filesize

      469KB

      MD5

      281301ef0a83967024fb992845b603a0

      SHA1

      5e84df4a2fe03de8bb25a916b5759abdcb446aa6

      SHA256

      64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b

      SHA512

      4cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5

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

      Filesize

      469KB

      MD5

      281301ef0a83967024fb992845b603a0

      SHA1

      5e84df4a2fe03de8bb25a916b5759abdcb446aa6

      SHA256

      64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b

      SHA512

      4cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5

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

      Filesize

      469KB

      MD5

      281301ef0a83967024fb992845b603a0

      SHA1

      5e84df4a2fe03de8bb25a916b5759abdcb446aa6

      SHA256

      64a73cc4e0b19852bf4d37ef96d8c80ace2eb7a810807d8516353d5e8124a85b

      SHA512

      4cd90a7cd0c8acfd8fb16c434cd7a1af46f5a3eb9aee8a20315fb441eeb0b7bd9d97a4110410baedab06c81ba8c71ef90d820577d366b7ed447486d6f88831a5

    • memory/788-162-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/788-160-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/788-159-0x0000000000000000-mapping.dmp

    • memory/788-163-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/788-165-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1352-139-0x0000000000000000-mapping.dmp

    • memory/1352-150-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/1352-143-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/3748-144-0x0000000000000000-mapping.dmp

    • memory/4004-146-0x0000000000000000-mapping.dmp

    • memory/4004-151-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/4004-153-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/4400-134-0x0000000000000000-mapping.dmp

    • memory/4400-135-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/4400-138-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/4400-142-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/4608-158-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4608-157-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4608-155-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4608-154-0x0000000000000000-mapping.dmp

    • memory/4660-137-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/4660-132-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB

    • memory/4660-133-0x0000000074F20000-0x00000000754D1000-memory.dmp

      Filesize

      5.7MB