Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea8480cfaa3bca3…

MALICIOUS

PDF

43.7 KB Created: 2021-05-17 07:04:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c114df1efff0002e72f92e523bad6e89 SHA-1: 977262a0cc707e0c9b9868230c037a28abacc7e0 SHA-256: bea8480cfaa3bca3a68f4c34217d78659ae2f52c6783d73111a4cc2815560d0f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The document body and embedded URLs suggest a lure to trick users into downloading further malicious content or visiting compromised sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/cheats-for-coin-master-game-hack In PDF document text
    • http://ims-77.fr/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://ims-77.fr/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://ims-77.fr/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/coins-master_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://ims-77.fr/images/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/coin-master-hack-ios-app_GM406889139.pdfIn PDF document text
    • http://ims-77.fr/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://ims-77.fr/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000460e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x460E 25856 bytes
SHA-256: 70bc4ca3263d64360f5db4b8f598a487075b3b37c0882181258583c6c0d219be
font_01_sfnt_off00007fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000089a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A2 17876 bytes
SHA-256: 503fe8d746beae52c5eef18798c5d93272f0ad11156ff4c57f17f4a0b53681c9

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