Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c38482ed718e23c…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 08:15:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7416115c9b8b48f16409b2db048aa8de SHA-1: 5e3e6a9d1de256815cdfe3244910b01ac8a86d0f SHA-256: 0c38482ed718e23c61338b72b224bee8482710f910c9c0a248c22e1425d74131
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 0.9980

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 http://netcdn.co/app/431946152/free-robux-safe-game-hack PDF link annotation
    • https://www.bridalguide.com/sites/default/files/files/tiktok-followers-free-no-verification_GM835599320.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/comment-avoir-des-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/fb-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-toys-in-roblox-codes_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/how-to-get-vip-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/roblox-item-codes-free_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/open-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/roblox-admin-hack-download_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/roblox-free-bundles_GM431946152.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
font_00_sfnt_off00002eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB9 22524 bytes
SHA-256: 4c00e98848b3e455494992cfcc75a15e5b8e03ce8a91ee9cb6257dea76787f24
font_01_sfnt_off00006110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 18716 bytes
SHA-256: 10dbf18a398b54dbdf12e35bff00225a1ca49c244028279e5f56b846bcc4a5be

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