Malicious PDF — malware analysis report

Static analysis result for SHA-256 6867c497ce96b395…

MALICIOUS

PDF

34.5 KB Created: 2021-07-20 07:42:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5ef1a901f00b4dfc163d9988c94baabe SHA-1: 155d8d7448b8c6e85c5ab6ea484f0e3c80628bcc SHA-256: 6867c497ce96b395c3090fbf7c9ebeca619a367878228258630114199867944a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with one specifically identified as a malicious redirector leading to a 'game hack' lure. The document body text and embedded URLs reinforce this lure by referencing free spins and game-related content. The primary malicious action observed is the redirection to potentially harmful infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/406889139/coin-master-free-spins-link-today-new-game-hack In PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/free-robux-website_GM431946152.pdfIn PDF document text
    • http://elearning.man1konselkonda.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003049.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3049 23032 bytes
SHA-256: 45bbca38bf43aeb50f59cb57869b150ac4c7f6bb6657c3d2c5abbd3b7146b6f6
font_01_sfnt_off0000641e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641E 18572 bytes
SHA-256: 51c95658009ee6a6ae875a8d4133a79c51d36fbd34bac1203a2f2fe060da7c96

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