Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a91485362b68961…

MALICIOUS

PDF

34.5 KB Created: 2021-06-17 22:15:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0a161b390d9ac644378c831093a3c35e SHA-1: 923e0d29d22e73f7a48681df3f76ab70e8148dd6 SHA-256: 2a91485362b68961cfbd6d54b07340c96608228463357914f79a2e552dc32471
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and generators for popular games like Roblox and Minecraft. The primary lure URL is http://netcdn.co/app/431946152/is-it-bad-to-hack-your-friend-roblox-game-hack. This indicates a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/is-it-bad-to-hack-your-friend-roblox-game-hack In PDF document text
    • http://lesvossolidarity.org/images/roblox-ps4-free_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://lesvossolidarity.org/images/comment-utiliser-hack-book-one-piece-roblox-quelle-touche_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://lesvossolidarity.org/images/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://lesvossolidarity.org/images/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/how-to-hack-some-one-with-cookies-roblox_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://lesvossolidarity.org/images/roblox-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://lesvossolidarity.org/images/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://lesvossolidarity.org/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lesvossolidarity.org/images/coin-master-free-spins-link-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_off00002fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBC 22092 bytes
SHA-256: 170d95f80f470f47b563e514f2d696f9515ce83be59c7a41b7326b2204d7a746
font_01_sfnt_off000060f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F6 19332 bytes
SHA-256: 43448ed16e89586f5077e7362f6a5bb2f25caa8385420c53053f66513d81ad67

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