Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b13fb298371590d…

MALICIOUS

PDF

44.9 KB Created: 2021-06-07 15:46:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f48a3bc9f3711d4d8eaec40db3af9304 SHA-1: a76e70119628c79c29bbe3abb45d08cee103bcea SHA-256: 9b13fb298371590d1dbf58234abd5fb59a798ea92a15052b7a88304714aafd15
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as generators for game cheats and currency. The heuristic firings indicate the document's primary purpose is to lure users to these malicious sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/robux-hacks-online-generator-game-hack In PDF document text
    • http://www.copoint.co.uk/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/pokemon-go-free-download-hack_GM1094591345.pdfIn PDF document text
    • http://www.copoint.co.uk/images/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/pastebin-com-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/bowtie-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://www.copoint.co.uk/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://www.copoint.co.uk/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.copoint.co.uk/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_004_off00005031.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5031 25796 bytes
SHA-256: d1737ab9ab28f8755163259b4ed03a9f9d0e976018ddbb3ebf7ff4b28c0fc21d
font_01_sfnt_off00008c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C08 18544 bytes
SHA-256: b009be22c553d311bc1409781acf7e365bf9986e3f699ea0092c5747a078c21d

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