Malicious PDF — malware analysis report

Static analysis result for SHA-256 260cbee9726d9860…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 03:11:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b3005612edaff3bc1e4ca112a00b4c5c SHA-1: 85baecdbfd4f0c6bdc673e4e2eb5ef5ab76eb48e SHA-256: 260cbee9726d98607d9bcacd0cd3b0d0039ce07e0844ece181adb548e890eb04
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/479516143/free-minecraft-packs-game-hack PDF link annotation
    • http://artistaone.co/userfiles/files/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-games-about-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/robux-survey_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/break-free-roblox-id-area_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/use-cheat-engine-with-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-who-hacked-jay-tophat_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-hack-dantdm-on-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-roebucks_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/counter-blox-roblox-offensive-hacks-marca-los-objetivos_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/how-to-animation-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/gamesyourday-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-cheats-ios_GM431946152.pdfIn PDF document text
    • http://artistaone.co/userfiles/files/roblox-zone-free-robux_GM431946152.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
font_00_sfnt_off00003059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3059 22448 bytes
SHA-256: 847148a5073cd9aa3ff49f022366255034423e90d7d296305113ecbab40e91ab
font_01_sfnt_off00006249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6249 18180 bytes
SHA-256: cd26da6d7e7da25a67fce542645decc56f078d6b90bb5ba2dacc5a3e21e5a79e

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