Analysis

  • max time kernel
    75s
  • max time network
    113s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    14-07-2022 00:31

General

  • Target

    4936277cbb366241a62317ebc2a94b8b98c6df1fe84916934adb771629bdcdaf.exe

  • Size

    823KB

  • MD5

    e416f63a17df80abc116dfbdd1f30636

  • SHA1

    6df554a2a077fa6242bf8ffcce238b53e327ffce

  • SHA256

    4936277cbb366241a62317ebc2a94b8b98c6df1fe84916934adb771629bdcdaf

  • SHA512

    fa2719ff085e5e08e6c488c8a63f2596925073b1243b40f48cd3e95748a8857cf2e177bdb16cd45f09dbfaa725b4f1cb4b42d55bc6e829f47399075a9d657957

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    myrecords1248@

Signatures

  • HawkEye

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

  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 10 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 15 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
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4936277cbb366241a62317ebc2a94b8b98c6df1fe84916934adb771629bdcdaf.exe
    "C:\Users\Admin\AppData\Local\Temp\4936277cbb366241a62317ebc2a94b8b98c6df1fe84916934adb771629bdcdaf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:784
    • 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
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:932
      • 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:436
      • 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:1256

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/436-71-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/436-77-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/436-76-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/436-75-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/784-55-0x0000000000440000-0x0000000000460000-memory.dmp

      Filesize

      128KB

    • memory/784-56-0x00000000005B0000-0x00000000005BC000-memory.dmp

      Filesize

      48KB

    • memory/784-54-0x0000000000020000-0x00000000000F4000-memory.dmp

      Filesize

      848KB

    • memory/932-61-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/932-62-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/932-68-0x0000000075701000-0x0000000075703000-memory.dmp

      Filesize

      8KB

    • memory/932-69-0x0000000004FB5000-0x0000000004FC6000-memory.dmp

      Filesize

      68KB

    • memory/932-70-0x00000000008A0000-0x00000000008A8000-memory.dmp

      Filesize

      32KB

    • memory/932-65-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/932-67-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/932-60-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/932-58-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/932-78-0x0000000004FB5000-0x0000000004FC6000-memory.dmp

      Filesize

      68KB

    • memory/932-57-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1256-83-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1256-79-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1256-85-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB