Malicious PDF — malware analysis report

Static analysis result for SHA-256 4567974e3115f878…

MALICIOUS

PDF

43.5 KB Created: 2021-05-10 16:06:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: caaa319cce644ddc354e343e09c9ea35 SHA-1: eab16ea7253b9d5ee3b9de0e0bb261b78a1dae90 SHA-256: 4567974e3115f8788e5677b77843c182261b0cd7ae9468cdb510ac83be3dc3b2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into visiting a malicious URL. The document contains multiple embedded URLs that redirect to a suspicious domain, likely serving as a gateway to further malicious content or downloads. No scripts were extracted from this sample, but the PDF structure and embedded URIs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/easy-roblox-today-game-hack PDF link annotation
    • http://www.library.smactf.sch.id/repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/robux-cheat_GM431946152.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://www.library.smactf.sch.id/repository/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.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_off0000494a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x494A 27040 bytes
SHA-256: 99e937fe30377d02046b5fc4e3e950dcacc5f2a6b44af5f364021934f9be89a6
font_01_sfnt_off00008710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8710 18364 bytes
SHA-256: e553aa4dc1eeda8b8c5a317bba368be2d7717273b9b6ea138d4861a68924f7c9

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