Malicious PDF — malware analysis report

Static analysis result for SHA-256 108d724195696601…

MALICIOUS

PDF

15.6 KB Created: 2021-06-09 15:58:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6f506cd22aa4b6d9d2c61493def6d5ba SHA-1: 8083eed0ad8c26f3868e7748f98c266cc3386776 SHA-256: 108d724195696601a5b8b611f530bbbf5b2b05533cde2ff14abdecd2f708380f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and cheats. The primary lure appears to be 'Pain Hack Roblox', directing users to `https://netcdn.tw/app/431946152/pain-hack-roblox-game-hack`. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

Heuristics 3

  • 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.
  • 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.tw/app/431946152/pain-hack-roblox-game-hack In PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/robux-apk_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-legit-working-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-card-hack-app_GM406889139.pdfIn PDF document text