Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb85feab9228bb5…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 10:49:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fc90fa844fa7d88b40ded8bd8fff5bd4 SHA-1: c44ea75adba06d607b593d33502c651e4d3f9336 SHA-256: beb85feab9228bb512b99e3e74cc11c2c623149907487c63f9d7452a2308927a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains links that are identified as malicious redirectors, specifically leading to a 'game hack' lure. The document body, though heavily obfuscated, contains a URL that aligns with the heuristic findings. The presence of embedded URLs and the nature of the lure suggest an attempt to trick the user into visiting a malicious site, likely to download further malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/master-free-spins-and-coins-game-hack In PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/picture-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/robux-giver_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-2021-free-spins-link_GM406889139.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_004_off00004f91.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F91 24396 bytes
SHA-256: 2ada9706511bc6e42a95faffc45117f38ff0a6d5e04ce7d0c7f94d41166c7c01
font_01_sfnt_off0000875a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x875A 18060 bytes
SHA-256: d06b9f6ce8bbd870629f12123efeb620bcd0bbcf70b73364bfc805fb6b1b694d

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