Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a513c0ad9cf920b…

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 12:26:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bfb405ca840e0aae890c23b38579dccf SHA-1: ad1f6114140e84b58f9eee3e695573e818c6bc58 SHA-256: 0a513c0ad9cf920b1b865748a1f6ba64ca786044ca215173704b135efdff78f3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, which likely serves to obscure the final malicious destination or deliver further malicious content. The document's structure and embedded URLs suggest a phishing or scam campaign aimed at users seeking in-game advantages.

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/how-to-hack-roblox-with-inspect-element-game-hack In PDF document text
    • http://lib.smklabor.sch.id/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/tiktok-free-skin-ml_GM835599320.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-no-download-no-survey-trackid-sp006_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-de-dinero-en-jailbreak-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/dayz-3-beta-roblox-cheats-cods_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-scp-foundation-model-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-hacks-2021_GM431946152.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_off0000304d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304D 22464 bytes
SHA-256: af983ef38e26ae2c8daa8281b94ac27c55fe29cab409a1f798d4faa8edaaf986
font_01_sfnt_off00006262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6262 19844 bytes
SHA-256: 05b8aea475ce76ba790f9aa8c3cc7ecc22f57d95d1c2e7f36a4268761a3ac6cc