Malicious PDF — malware analysis report

Static analysis result for SHA-256 5caab7df50062269…

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 21:16:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: de6a6aaf38df115c24476bf6ab1c0d41 SHA-1: eab466c229d144407e6b5f65a5f9654dc83e08db SHA-256: 5caab7df500622696f79223d1132fdcb56c79e0318990f3dfe3e9b1b80fec7f2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "free generator / game hack" lures for popular games. The embedded URLs and heuristic firings strongly indicate a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the document's structure and content point to a social engineering attack.

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/431946152/ww-robux-game-hack In PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/pokemon-go-free-coins-code_GM1094591345.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-to-hack-other-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/best-roblox-mmo-free_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/robux-converter_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-backpack-code-roblox_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/roblox-robux-hack-apk-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/how-to-get-free-robux-subscriber-key_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_off000030dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 22460 bytes
SHA-256: 029df3b6847a9ffcee568a7497158295708dae34d15b8b1d7600be39aba1913a
font_01_sfnt_off0000630c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630C 18912 bytes
SHA-256: d0da06c06563365e25d678163380f8c7fa6b55e71fb2929e51ced219e7911ccc

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