Malicious PDF — malware analysis report

Static analysis result for SHA-256 69591e7bfda43f89…

MALICIOUS

PDF

41.3 KB Created: 2021-05-17 03:32:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fe1575137bc59b2388928465e6b85a95 SHA-1: 93fa8a28013fd09254faf6dfec6174c9bf96d34e SHA-256: 69591e7bfda43f89e9fc77c7239270a162f9647f31fdc7697330baf85c49675f
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 0.9971

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/479516143/get-minecraft-for-free-game-hack PDF link annotation
    • http://www.dolciariavarone.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/roblox-rape_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://www.dolciariavarone.com/images/como-generar-coin-master-free-spins_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_off00004a27.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A27 24104 bytes
SHA-256: 9340ef2b2bd63dcc76b5f56ceab3d8181dc543f6d56065829794de73af2567f6
font_01_sfnt_off000080c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C5 17712 bytes
SHA-256: 35f99bfb73b52248bbdf58e6e807942ea3200a6c0759a8418b864f3a1fae0a50

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