Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf068ed1aed4ad2…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 21:12:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 38646b1ebd67b5a26d4ac7d35127d1d9 SHA-1: ed5a6904e2829de4c1d337c99d4a4b35238d0e21 SHA-256: edf068ed1aed4ad24c80857a1668aa15ee7265855987a84ef6c1a66aedeecbde
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.tw/app/431946152/roblox-free-robux-com-game-hack PDF link annotation
    • http://katalog.gemalibrary.net/repository/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/bc-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/worst-client_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/roblox-zall-site-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/give-me-free-robux-com_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://katalog.gemalibrary.net/repository/free-roblox-accounts-with-robux-that-work-not-banned_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_off0000317e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317E 22280 bytes
SHA-256: 8364484ad3fd4ab274a21ef1e7fe6bca954ad7dbd457049f48e56dc8077ad2fd
font_01_sfnt_off0000634c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634C 19052 bytes
SHA-256: 3ade0644b03576c953d7fa07027ec2051297089046835a88cadcb08e5c593426

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