Malicious PDF — malware analysis report

Static analysis result for SHA-256 15af917004c65140…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 12:53:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 716827fb71c214a71d7b9c54f3b3ced9 SHA-1: 58fe0fa6bfbeb4360f3fc72ebb5ab865291a5a27 SHA-256: 15af917004c651408ece8fb8955683b9cd7cf2c50442fab8cbf03b9e2bb87e4e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites that promise free game hacks and currency, a common lure for malicious activity. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs suggest a phishing or malware distribution attempt. No scripts were extracted, but the document body and heuristics indicate a social engineering tactic to drive users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-bedrock-free-download-pc-game-hack PDF link annotation
    • http://aeridefense.com/image/data/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/real-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-working_GM431946152.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_off00004aaf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AAF 24388 bytes
SHA-256: be8952ea817e580353eff6327012fd7ece23aa23eb0203af0edbe7ea66e5d08c
font_01_sfnt_off000082ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AE 18828 bytes
SHA-256: 744b4361c7b50ab0c54bda7008ddb1699961116dc3c405c5ee3c1e77c5f65438

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