Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9c50c58f1482c5…

MALICIOUS

PDF

50.0 KB Created: 2021-05-15 12:37:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 72cc18e815b3a4dec5a0d0be54c98a28 SHA-1: a1a25e35ba0325648389f62faf0c7f0560b4719a SHA-256: 2c9c50c58f1482c5d5d6e2991bce47ba00e03f8864bb44713fd66fe22ed7eabc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious infrastructure, specifically promoting a 'game hack' and 'free spins' lure. The document body and extracted URLs reinforce this redirection-based attack pattern. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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/406889139/100-free-spins-for-coin-master-2021-game-hack In PDF document text
    • http://www.pleiadisrl.it/images/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/oginject-co_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a17.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A17 24580 bytes
SHA-256: 692e0aaa9abb7e5e02946487384b67f1d87caae0be0bd6b62d78d4819ad5360d
font_01_sfnt_off000082b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B8 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00008c54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C54 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_03_sfnt_off0000a0de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0DE 18288 bytes
SHA-256: 7a7785de19adfa5a65cd79b10bfe31691e1cdc7f9f712964e30bbfe58da4eef2

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