Analysis

  • max time kernel
    147s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-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 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 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 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 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:4952
    • 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 SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2520
      • 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:2084
      • 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⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3200

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • memory/2084-143-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2084-142-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2084-140-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2520-136-0x0000000005100000-0x000000000510A000-memory.dmp

    Filesize

    40KB

  • memory/2520-137-0x0000000005280000-0x00000000052D6000-memory.dmp

    Filesize

    344KB

  • memory/2520-138-0x0000000009410000-0x0000000009476000-memory.dmp

    Filesize

    408KB

  • memory/2520-135-0x0000000000400000-0x0000000000484000-memory.dmp

    Filesize

    528KB

  • memory/3200-145-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3200-147-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3200-149-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4952-130-0x0000000000060000-0x0000000000134000-memory.dmp

    Filesize

    848KB

  • memory/4952-133-0x0000000005DB0000-0x0000000005E4C000-memory.dmp

    Filesize

    624KB

  • memory/4952-132-0x0000000005210000-0x00000000057B4000-memory.dmp

    Filesize

    5.6MB

  • memory/4952-131-0x0000000004BC0000-0x0000000004C52000-memory.dmp

    Filesize

    584KB