Malicious PDF — malware analysis report

Static analysis result for SHA-256 7abda09856e3f61c…

MALICIOUS

PDF

43.6 KB Created: 2021-05-13 12:37:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5e62998be86c7d817dd171c15d4e47e4 SHA-1: 1635c4f681f77ea91aead6a5263c5b013a9f6a7b SHA-256: 7abda09856e3f61ceb2cbefaf06a19a526747155678db59cd7902a3afb7ceb4b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/blogger-coin-master-free-spins-game-hack PDF link annotation
    • http://plantas.net/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://plantas.net/images/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://plantas.net/images/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://plantas.net/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/cm-spins_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://plantas.net/images/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/free-redeem-code-for-coin-master_GM406889139.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
stream_003_off00004b2a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B2A 25796 bytes
SHA-256: a0bd4f351d70aa84c0c588ff716bc938d6b8429e17262a4750ee51709a9667fa
font_01_sfnt_off000087c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C0 18464 bytes
SHA-256: 0911799b9aa5b6ecf8f75e1ae71094da345a4ed5579c86b7800e8f9c3f9f610d

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