Malicious PDF — malware analysis report

Static analysis result for SHA-256 97cf8d02f726e146…

MALICIOUS

PDF

45.4 KB Created: 2021-05-18 01:05:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5046b9c7bfc1a8a824b9d55393b4140b SHA-1: 3b64dbfb53fbdc8c31c7c729b44cdff078076e0a SHA-256: 97cf8d02f726e146cb444351eb7589aaa5108a0297e40c391015f1fb1df0165e
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that impersonate brands like Microsoft and promise game-related rewards or hacks, redirecting to malicious infrastructure. The primary malicious URL identified is https://netcdn.xyz/app/431946152/robux-place-rewards-game-hack, which is associated with known malicious redirectors. The document body and embedded links suggest a credential phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/robux-place-rewards-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/robux-place-rewards-game-hack In PDF document text
    • https://www.stayon.no/images/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • https://www.stayon.no/images/roblox-imagine_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://www.stayon.no/images/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-free-stars_GM406889139.pdfIn PDF document text
    • https://www.stayon.no/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.stayon.no/images/coin-master-gold-cards-hack_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
font_00_sfnt_off00004826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4826 30612 bytes
SHA-256: e602c4afe7fe4a905b4c991bf55663f46b5b2f4c2c9b89ddb16723e7c05f4918
font_01_sfnt_off00008e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E14 18644 bytes
SHA-256: 097b3e5fe389c9d5235bb5f39cca6eafd3c2d90897f0534c254bdefdab42f7f8

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