Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad95b097d02b33eb…

MALICIOUS

PDF

42.5 KB Created: 2021-05-14 04:03:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 30ca4469e1abc898620e1a9197fd067d SHA-1: 43f29b4c36eeda510e5c893d2ec0a862174f421a SHA-256: ad95b097d02b33ebd1a6664fb2e061a8a891a5beaba8cbe6000546532c1a26a2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-spins-and-coins-on-coin-master-game-hack In PDF document text
    • https://dr-willmer.de/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://dr-willmer.de/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://dr-willmer.de/images/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • https://dr-willmer.de/images/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://dr-willmer.de/images/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/coin-master-homepage_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • https://dr-willmer.de/images/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004afa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AFA 25168 bytes
SHA-256: 4b88d282870074e5add72bdae741dc25c57a004c81531c6b94ef5caa255a56d0
font_01_sfnt_off000084a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84A2 18060 bytes
SHA-256: 64690fddacb88a1b87eb78a3bf181b542b813998c8d2539429c7660090ba79fa

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