Analysis

  • max time kernel
    121s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    05/06/2024, 08:35

General

  • Target
    97a3d8e5095f6a3498a52acd81e3d97c_JaffaCakes118.exe
  • Size 1.4MB
  • Sample240605-kg2yzsba2v
  • SHA256 7ef3e8ca1abdcae5850f5b4e821a677ff9f49fcc2719745dc16ed26454442870
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.yandex.com

  • Port

    587

  • Password

    myrecords1248

Signatures

  • HawkEye

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

  • NirSoft MailPassView 7 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • 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 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\97a3d8e5095f6a3498a52acd81e3d97c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\97a3d8e5095f6a3498a52acd81e3d97c_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2652
      • 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:2768
      • 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:1644

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          holderwb.txt

          • Path C:\Users\Admin\AppData\Local\Temp\holderwb.txt
          • Size 2B
          • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
          • MD5 SHA1 SHA512

          memory/620-6-0x000000007493E000-0x000000007493F000-memory.dmp

          memory/620-2-0x00000000002F0000-0x000000000030A000-memory.dmp

          memory/620-3-0x0000000000320000-0x0000000000326000-memory.dmp

          memory/620-4-0x0000000074930000-0x000000007501E000-memory.dmp

          memory/620-5-0x0000000074930000-0x000000007501E000-memory.dmp

          memory/620-7-0x0000000074930000-0x000000007501E000-memory.dmp

          memory/620-0-0x000000007493E000-0x000000007493F000-memory.dmp

          memory/620-13-0x0000000074930000-0x000000007501E000-memory.dmp

          memory/620-1-0x00000000012E0000-0x0000000001458000-memory.dmp

          memory/1644-30-0x0000000000400000-0x0000000000458000-memory.dmp

          memory/1644-25-0x0000000000400000-0x0000000000458000-memory.dmp

          memory/1644-26-0x0000000000400000-0x0000000000458000-memory.dmp

          memory/2652-10-0x0000000000400000-0x0000000000484000-memory.dmp

          memory/2652-18-0x0000000000770000-0x0000000000778000-memory.dmp

          memory/2652-12-0x0000000000400000-0x0000000000484000-memory.dmp

          memory/2652-8-0x0000000000400000-0x0000000000484000-memory.dmp

          memory/2768-19-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/2768-24-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/2768-21-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/2768-22-0x0000000000400000-0x000000000041B000-memory.dmp