Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3777acc681369f…

MALICIOUS

PDF

33.9 KB Created: 2021-07-07 21:44:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: de2f3d1981615bd1476e2bd21068a969 SHA-1: 0f30e004bab0ec4e8b27cc6d55005f5e69794d4f SHA-256: 0d3777acc681369ff3b018b7f733d5d2b7f66f2048902d91a87209adbb604f11
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, indicating a social engineering attempt to trick users into visiting a malicious site. No scripts were extracted, but the primary attack vector appears to be a malicious link within the document.

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.tw/app/406889139/coin-master-free-daily-spins-game-hack In PDF document text
    • http://digilib.stiki.ac.id/repository/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-coins_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/wewgaming-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/hawt-sauce-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/dominus-hat-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-get-free-clothes-in-roblox-on-phone_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-robux-instantly-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-daily-spins-coin-master_GM406889139.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_off00002e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4A 22588 bytes
SHA-256: cf4fc883c771f9ad452e23fd9bcdc3bad8d6cec2ff5e2b1e809c6d2105f9ff3e
font_01_sfnt_off000060c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C7 18596 bytes
SHA-256: 9cc88ea50ead10f9f912dbf4be3878b8b313467d4147098bf597ecbc2abb3a30

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