Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a176c78ba660dbd…

MALICIOUS

PDF

33.5 KB Created: 2021-06-26 03:11:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e720be23c2a84946fef05b3c245176d SHA-1: 52a78750c15369b467d4c552bfa960578f9f007d SHA-256: 6a176c78ba660dbd4098705ca898645f4b2c133061cf7564aecb8f27a36319c7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free items. The primary malicious URL identified is http://netcdn.co/app/431946152/can-you-hack-on-roblox-game-hack, which is associated with a 'free generator / game hack' lure. The document body and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious sites.

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/can-you-hack-on-roblox-game-hack In PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-dbz-rage-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/como-tener-ropa-gratis-en-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/pubg-uc-exchange_GM1330123889.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/caillou-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-source_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/cheat-engine-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-gamepass-script-pastebin-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spin-whatsapp-group_GM406889139.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_off00002d70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D70 21976 bytes
SHA-256: e2612f8a0a62224610bc36ae0b695f0a94bd4a454507cdbe362b0272570aa650
font_01_sfnt_off00005e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0B 18960 bytes
SHA-256: 25050fb7d72f6ef554cd5d8e02df35aed045aa3c9daeb78c0d9c47c213f27961