Analysis

  • max time kernel
    173s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-05-2022 14:06

General

  • Target

    5c53c9ed0e7e5258f5a1ff3c9532f93d69f751eea71aeb4120892cc40d71b3b1.exe

  • Size

    706KB

  • MD5

    1221cf82c65577bfb4f642fb442fbb62

  • SHA1

    ace62f69e307229eb11c6e4bae7ec098eadac59c

  • SHA256

    5c53c9ed0e7e5258f5a1ff3c9532f93d69f751eea71aeb4120892cc40d71b3b1

  • SHA512

    02e27f3c17ec0459b8059dd6e2279d9e9ee2f5a9ea670e69b6ce3ca9b2fee4dd905b4b2e2dca1f9df1f04b58037f206adbf09e6a39ed3bf13aa2c3980426e6c3

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\F95B724EDE\Log.txt

Family

masslogger

Ransom Note
<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/11/2022 4:29:28 PM MassLogger Started: 5/11/2022 4:29:15 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\5c53c9ed0e7e5258f5a1ff3c9532f93d69f751eea71aeb4120892cc40d71b3b1.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> 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

  • MassLogger

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

  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 42 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 behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c53c9ed0e7e5258f5a1ff3c9532f93d69f751eea71aeb4120892cc40d71b3b1.exe
    "C:\Users\Admin\AppData\Local\Temp\5c53c9ed0e7e5258f5a1ff3c9532f93d69f751eea71aeb4120892cc40d71b3b1.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4192
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Local\Temp\5c53c9ed0e7e5258f5a1ff3c9532f93d69f751eea71aeb4120892cc40d71b3b1.exe"'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4192-140-0x0000000005850000-0x00000000058E2000-memory.dmp

    Filesize

    584KB

  • memory/4192-133-0x0000000005490000-0x000000000552C000-memory.dmp

    Filesize

    624KB

  • memory/4192-130-0x0000000000870000-0x0000000000926000-memory.dmp

    Filesize

    728KB

  • memory/4192-151-0x00000000063E0000-0x00000000063EA000-memory.dmp

    Filesize

    40KB

  • memory/4192-132-0x00000000059A0000-0x0000000005F44000-memory.dmp

    Filesize

    5.6MB

  • memory/4192-135-0x0000000005640000-0x00000000056A6000-memory.dmp

    Filesize

    408KB

  • memory/4192-152-0x0000000007230000-0x0000000007280000-memory.dmp

    Filesize

    320KB

  • memory/4608-136-0x00000000058B0000-0x0000000005ED8000-memory.dmp

    Filesize

    6.2MB

  • memory/4608-144-0x0000000007E70000-0x00000000084EA000-memory.dmp

    Filesize

    6.5MB

  • memory/4608-142-0x0000000070960000-0x00000000709AC000-memory.dmp

    Filesize

    304KB

  • memory/4608-137-0x0000000005550000-0x0000000005572000-memory.dmp

    Filesize

    136KB

  • memory/4608-131-0x0000000000000000-mapping.dmp

  • memory/4608-139-0x0000000006520000-0x000000000653E000-memory.dmp

    Filesize

    120KB

  • memory/4608-143-0x0000000006AB0000-0x0000000006ACE000-memory.dmp

    Filesize

    120KB

  • memory/4608-138-0x0000000005820000-0x0000000005886000-memory.dmp

    Filesize

    408KB

  • memory/4608-145-0x0000000007820000-0x000000000783A000-memory.dmp

    Filesize

    104KB

  • memory/4608-146-0x0000000007890000-0x000000000789A000-memory.dmp

    Filesize

    40KB

  • memory/4608-147-0x0000000007AA0000-0x0000000007B36000-memory.dmp

    Filesize

    600KB

  • memory/4608-148-0x0000000007A60000-0x0000000007A6E000-memory.dmp

    Filesize

    56KB

  • memory/4608-149-0x0000000007B70000-0x0000000007B8A000-memory.dmp

    Filesize

    104KB

  • memory/4608-150-0x0000000007B50000-0x0000000007B58000-memory.dmp

    Filesize

    32KB

  • memory/4608-134-0x0000000002BE0000-0x0000000002C16000-memory.dmp

    Filesize

    216KB

  • memory/4608-141-0x0000000007700000-0x0000000007732000-memory.dmp

    Filesize

    200KB