Analysis

  • max time kernel
    151s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    22/02/2022, 22:29

General

  • Target

    07f3e2d9c55de226529ac2f9d686f14877b074f58d6183ce5f30324a63fa2a0c.exe

  • Size

    3.4MB

  • MD5

    a823ce034acab9c8e810ca94927b3815

  • SHA1

    fcbe558da3085f502ffe2ee248b955804f5dfc5b

  • SHA256

    07f3e2d9c55de226529ac2f9d686f14877b074f58d6183ce5f30324a63fa2a0c

  • SHA512

    1422b8205a839ed155065ea7555cde3b52cc8d82b1042e3143cd933dc31464f34c6b7fe4cc11cc65979f6f3266734ccd793668da36172b5aea35d812c2947b9d

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    N01072002n

Signatures

  • HawkEye

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

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 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.

  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\07f3e2d9c55de226529ac2f9d686f14877b074f58d6183ce5f30324a63fa2a0c.exe
    "C:\Users\Admin\AppData\Local\Temp\07f3e2d9c55de226529ac2f9d686f14877b074f58d6183ce5f30324a63fa2a0c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\3.exe
      "C:\Users\Admin\AppData\Local\Temp\3.exe"
      2⤵
      • Executes dropped EXE
      PID:1288
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Mono.Cecil.dll
      2⤵
        PID:524
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\stub.bin
        2⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:556
        • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
          "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\stub.bin"
          3⤵
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          PID:1508
      • C:\Users\Admin\AppData\Local\Temp\1.exe
        "C:\Users\Admin\AppData\Local\Temp\1.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1000
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          3⤵
          • Executes dropped EXE
          • 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:1736
          • 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"
            4⤵
            • Accesses Microsoft Outlook accounts
            PID:1956
          • 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"
            4⤵
              PID:1536
        • C:\Users\Admin\AppData\Local\Temp\2.exe
          "C:\Users\Admin\AppData\Local\Temp\2.exe"
          2⤵
          • Executes dropped EXE
          PID:1632

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1000-71-0x0000000000980000-0x0000000000981000-memory.dmp

              Filesize

              4KB

            • memory/1000-70-0x0000000073181000-0x0000000073182000-memory.dmp

              Filesize

              4KB

            • memory/1000-72-0x0000000073182000-0x0000000073184000-memory.dmp

              Filesize

              8KB

            • memory/1288-84-0x0000000000965000-0x0000000000966000-memory.dmp

              Filesize

              4KB

            • memory/1288-59-0x0000000000940000-0x0000000000942000-memory.dmp

              Filesize

              8KB

            • memory/1288-76-0x0000000000946000-0x0000000000965000-memory.dmp

              Filesize

              124KB

            • memory/1288-60-0x000007FEF2610000-0x000007FEF36A6000-memory.dmp

              Filesize

              16.6MB

            • memory/1288-58-0x000007FEF54BE000-0x000007FEF54BF000-memory.dmp

              Filesize

              4KB

            • memory/1536-90-0x0000000000400000-0x0000000000458000-memory.dmp

              Filesize

              352KB

            • memory/1536-93-0x0000000000400000-0x0000000000458000-memory.dmp

              Filesize

              352KB

            • memory/1664-53-0x0000000075B51000-0x0000000075B53000-memory.dmp

              Filesize

              8KB

            • memory/1736-82-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

              Filesize

              4KB

            • memory/1736-88-0x0000000000AF5000-0x0000000000B06000-memory.dmp

              Filesize

              68KB

            • memory/1736-81-0x0000000073181000-0x0000000073182000-memory.dmp

              Filesize

              4KB

            • memory/1736-83-0x0000000073182000-0x0000000073184000-memory.dmp

              Filesize

              8KB

            • memory/1736-94-0x0000000000B06000-0x0000000000B07000-memory.dmp

              Filesize

              4KB

            • memory/1956-89-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB

            • memory/1956-86-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB