Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fbec66bfed40c47…

MALICIOUS

PDF

44.4 KB Created: 2021-05-14 00:10:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 53122bc21f330e8fc4e0d22c306af7bc SHA-1: 94a356399191a9df608e9eff25a045dd6b8b087a SHA-256: 2fbec66bfed40c4790af537d0e691fa4d80049f1ceb38d5424b009aa07fcd8c0
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors, disguised as "free generators" or "game hacks" for popular games like Coin Master and Minecraft. The document body and embedded links strongly suggest a social engineering lure to drive traffic to potentially malicious websites. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/406889139/coin-master-online-hack-game-hack In PDF document text
    • http://elektrofahrspass.de/images/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/earnrobux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://elektrofahrspass.de/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004999.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4999 24732 bytes
SHA-256: 88e4592535b4e71a2b6b690ba9d767738101845efb07a9403244f0ede36a8ccc
font_01_sfnt_off00008278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8278 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008c63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C63 17788 bytes
SHA-256: dd7a4057587595e78019333ccc667320d6d804c022730983449509c018bf4689

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