Malicious PDF — malware analysis report

Static analysis result for SHA-256 3716f6aeaca60fb6…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 21:30:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b4f1b200403349ad70e197a16a2401f5 SHA-1: 805702473d4cef82a7d32d070e04e860ec881d27 SHA-256: 3716f6aeaca60fb695329673319c4e79ab6c9911c83395710a08ef1e4b35c7ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The primary lure appears to be offering free game-related items or hacks, directing users to external sites for download.

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/479516143/how-to-get-free-minecraft-windows-10-game-hack In PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/como-conseguir-robux-gratis-en-roblox-2021-sin-hacks_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-credit-card-numbers-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-hack-no-download-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-bucks-hack-deutsch_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-free-robux-hack-no-verify-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-parkour-how-to-use-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-jailbreak-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/robux-hack-2021-no-survey-or-human-verification-no-downloads_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hacking-apps-for-roblox_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_off000032ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32CE 22252 bytes
SHA-256: 51cca7d555dc1e3deb7a31ef2654fc621c57c05b81c1b2ce9b972894afd40578
font_01_sfnt_off000063bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BF 18812 bytes
SHA-256: b4d2611f485a83028cf1ffed9fcab6e82ef3713424c9f58bf75bbd56965353bd