Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed359433be598f0…

MALICIOUS

PDF

44.0 KB Created: 2021-05-16 08:46:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: eeec9167afc440039659eeee1f66d136 SHA-1: 6ac2810cfbee66de8a2eed9126417b731d6bdd3a SHA-256: 3ed359433be598f0f1639592e4f30bd677d9f20a0e7aab7e540b01ca75153667
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that redirect to malicious infrastructure, masquerading as a 'free generator' or 'game hack' lure. The ML classifier strongly indicated maliciousness, and the presence of brand impersonation (Amazon) further supports a phishing or scam attempt. The document's primary function appears to be directing users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/how-to-get-free-robux-on-phone-2021-game-hack.
  • 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/431946152/how-to-get-free-robux-on-phone-2021-game-hack In PDF document text
    • https://pierrefabre-newsletters.gr/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/bux-free-robux_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/coin-master-free-online_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://pierrefabre-newsletters.gr/images/free-robux-scam_GM431946152.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
font_00_sfnt_off00004d6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D6D 24496 bytes
SHA-256: f1f2e90f4bf9bbc7364a034901f79e1899e5dae54781fdb94a0e71e272548c5e
font_01_sfnt_off000084f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F3 19884 bytes
SHA-256: cc06e4ad7b661df89e153f5f3eb100c952cc242c5ce501d8a08a6e48f4919a57

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