Analysis

  • max time kernel
    143s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    17-07-2020 05:31

General

  • Target

    xLHAPwpB8Wn82hY.exe

  • Size

    919KB

  • MD5

    8e8b65b284596bbe1a7cc2316cc933cc

  • SHA1

    d9e922a07e9119467b5801a0cb2694bee626cf9a

  • SHA256

    e0c5b0ed76a720cb7b40e0712b5d39800c5e7b2cb8c4f24e0b2de53bb5141b44

  • SHA512

    daebf8cfc196788474ae82bb30ceea205629870c4a96d1df9b42d38b298023fe15e62787c54cc8d7b64b093ce57a573efa182ff5edff2a679b142dc8947e2c7f

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\C8A579F880\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/17/2020 7:32:08 AM MassLogger Started: 7/17/2020 7:32:02 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\xLHAPwpB8Wn82hY.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of WriteProcessMemory 13 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

Processes

  • C:\Users\Admin\AppData\Local\Temp\xLHAPwpB8Wn82hY.exe
    "C:\Users\Admin\AppData\Local\Temp\xLHAPwpB8Wn82hY.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SetThreadContext
    PID:1232
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xevsfTZYwHpvSB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEA10.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1796
    • C:\Users\Admin\AppData\Local\Temp\xLHAPwpB8Wn82hY.exe
      "{path}"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: AddClipboardFormatListener
      PID:524

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/524-4-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/524-6-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/524-7-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB