Malicious PDF — malware analysis report

Static analysis result for SHA-256 d557ee508004d329…

MALICIOUS

PDF

32.7 KB Created: 2021-07-20 13:43:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fb010ad88f4a7f670aa3f9b3acf37a06 SHA-1: 21e3e40df35e5a8cea85ead6b26d8cbefcd8c3e6 SHA-256: d557ee508004d32920eed070d856f507af705f86c7e5a8f55f836859b4a3129e
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 0.9900

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/479516143/can-you-download-minecraft-for-free-game-hack PDF link annotation
    • http://italianconnectionsleaford.co.uk/images/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-do-i-get-free-spins-on-coin-master_GM406889139.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_off00002c91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C91 22052 bytes
SHA-256: 14a8cd7016808f77780d9d4e7c685a32702761ece65fa1bad4d7ee68ca4d8cc8
font_01_sfnt_off00005cf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF7 18592 bytes
SHA-256: ed5684d9a13e4aff878e16593a586bb1b0a035d61c002246dac68e4b539701c0

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