Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e7104473e67c732…

MALICIOUS

PDF

32.6 KB Created: 2021-07-20 20:22:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 32b49f3d8b2f9dd43e78368d534d4a8c SHA-1: 16a90989bd55e87ce573b5ae064ac17b3b398dc3 SHA-256: 5e7104473e67c7328ce3b99a539897987b8f43bed2ec862ed833be40f73de869
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a "free generator / game hack" which links to malicious redirector infrastructure at http://netcdn.tw/app/479516143/is-minecraft-education-edition-free-game-hack. The presence of embedded URLs and a visual download button suggests a phishing or social engineering attempt to drive traffic to malicious sites. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/is-minecraft-education-edition-free-game-hack In PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/get-free-likes-on-tiktok_GM835599320.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_off00002d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7A 22080 bytes
SHA-256: 36f051fd45a1a57a4a805719e75eb2a3f084f78759d9b11b3250b310935bf832
font_01_sfnt_off00005e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E28 18024 bytes
SHA-256: 860599eb2378c11ce9f069b8b1214934614c40beead093e3b25ec1c42f286d72

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