Analysis

  • max time kernel
    186s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 03:04

General

  • Target

    32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe

  • Size

    521KB

  • MD5

    a1b89dc6328584521be91c0ce72d3d87

  • SHA1

    aab7aea67283b50c69e00c15db7ef922680b3d50

  • SHA256

    32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

  • SHA512

    4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

  • SSDEEP

    6144:zuRqBr74bS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9N:974QtqB5urTIoYWBQk1E+VF9mOx9Mi

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 9 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 9 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 14 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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.

  • 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 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe
    "C:\Users\Admin\AppData\Local\Temp\32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1420
      • 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:1712
      • 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:1992
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 1408
          3⤵
          • Loads dropped DLL
          PID:1064

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      102B

      MD5

      3685613c641bcef4b45add471a4fe402

      SHA1

      e1b307fa1782edcd2473671cb19c41d9325307b9

      SHA256

      5ff57ebbc690004773ce065046f852597608e6b9f7bede29cabd24310a7ee6c0

      SHA512

      cc51a946127b5035cc903c3e69428bbe3a56e86973b952f5fa368a97b459ab231d48c174249a954ab4c51916e638acb2de61ab68e9416d4e653c8fd4c8dfdb70

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

      Filesize

      521KB

      MD5

      a1b89dc6328584521be91c0ce72d3d87

      SHA1

      aab7aea67283b50c69e00c15db7ef922680b3d50

      SHA256

      32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

      SHA512

      4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

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

      Filesize

      521KB

      MD5

      a1b89dc6328584521be91c0ce72d3d87

      SHA1

      aab7aea67283b50c69e00c15db7ef922680b3d50

      SHA256

      32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

      SHA512

      4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

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

      Filesize

      521KB

      MD5

      a1b89dc6328584521be91c0ce72d3d87

      SHA1

      aab7aea67283b50c69e00c15db7ef922680b3d50

      SHA256

      32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

      SHA512

      4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

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

      Filesize

      521KB

      MD5

      a1b89dc6328584521be91c0ce72d3d87

      SHA1

      aab7aea67283b50c69e00c15db7ef922680b3d50

      SHA256

      32a8606658fdaad1bf63ad2ec4fca8c1acb23bb424e6516b98acd98af043d85f

      SHA512

      4a60116f47032a15edde0fa3ea61a909c336a825c703b87de8249602302b54809d2cccf0806e407ec6646289d088432530203de9cbea16c76b618385b023ad56

    • memory/1064-82-0x0000000000000000-mapping.dmp

    • memory/1420-57-0x0000000000000000-mapping.dmp

    • memory/1420-62-0x0000000074DA0000-0x000000007534B000-memory.dmp

      Filesize

      5.7MB

    • memory/1420-64-0x0000000074DA0000-0x000000007534B000-memory.dmp

      Filesize

      5.7MB

    • memory/1420-70-0x0000000002245000-0x0000000002256000-memory.dmp

      Filesize

      68KB

    • memory/1420-81-0x0000000002245000-0x0000000002256000-memory.dmp

      Filesize

      68KB

    • memory/1712-65-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1712-66-0x0000000000411654-mapping.dmp

    • memory/1712-69-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1712-71-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1712-72-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1736-61-0x0000000074DA0000-0x000000007534B000-memory.dmp

      Filesize

      5.7MB

    • memory/1736-54-0x0000000076171000-0x0000000076173000-memory.dmp

      Filesize

      8KB

    • memory/1736-55-0x0000000074DA0000-0x000000007534B000-memory.dmp

      Filesize

      5.7MB

    • memory/1992-77-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1992-78-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1992-73-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1992-80-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1992-74-0x0000000000442628-mapping.dmp