Malicious PDF — malware analysis report

Static analysis result for SHA-256 61e5268900118705…

MALICIOUS

PDF

44.1 KB Created: 2021-05-19 18:15:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4ad9a830d10424496f0377a4adbf6353 SHA-1: 1970366ec580a850e3287e9f9481f1b1975281cf SHA-256: 61e5268900118705916ad16981a2f952f4d990f5a8e7d500970d725550c13f5a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. 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 0.9976

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/1330123889/pubg-uc-seller-game-hack PDF link annotation
    • http://www.thecoffeebaron.co.za/images/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/hack-coin-master-app_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_off000047bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47BC 28756 bytes
SHA-256: 718bca290abe2e9aa1d87acc08558663a12d40669da23dd9f2fdd0102f1947aa
font_01_sfnt_off00008b29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B29 17972 bytes
SHA-256: d72aa358461f1216a2aae1ed08086fc4e6175ee6ede882e90201e4bcf51a1982