Malicious PDF — malware analysis report

Static analysis result for SHA-256 f592fb71fe662a2f…

MALICIOUS

PDF

44.3 KB Created: 2021-05-13 15:46:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f7f4aeba313aea4b8746d86d910acba3 SHA-1: 56a1589a79bc13e7abb0b9849fd3048a2ddb692c SHA-256: f592fb71fe662a2f27d895b99b01b4a04c318626561581c9aff2e2f2fa421e90
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to game hacks and directs users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. The presence of multiple game-related lures and the redirection to a suspicious domain indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-rtx-download-free-game-hack PDF link annotation
    • http://dennemaat.nl/images/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/get-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://dennemaat.nl/images/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/give-me-robux_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://dennemaat.nl/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://dennemaat.nl/images/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://dennemaat.nl/images/robux-gratis_GM431946152.pdfIn PDF document text
    • http://dennemaat.nl/images/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://dennemaat.nl/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a85.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A85 28604 bytes
SHA-256: 5d341d10335124ea3678b805d6ff4ced7fafd28fb4dfcf2a187afd9c561bafd9
font_01_sfnt_off00008a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2D 18500 bytes
SHA-256: 5f3bdd779ddaacede8957d9864e28e9a9e9e2ea303e248dbf894cd003605836d

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