Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82f9d976bf204d8…

MALICIOUS

PDF

34.9 KB Created: 2021-06-21 12:21:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 88d5fc80ad67d38d95b87ad65acd91f8 SHA-1: 15cc014c4640d4e49e95ef5653b6e70b806b288b SHA-256: d82f9d976bf204d86756e41649ff2ee9ffcffc1d84ed01845a93ffd8bf1876bf
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/comment-hacker-phantom-force-roblox-game-hack PDF link annotation
    • http://ansacare.com/images/free-robux-that-really-works-that-dont-need-human-verifacation_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-hack-into-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-hack-hackerbot_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-ultimate-gamer-365_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-studio-free-download-windows-10_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/roblox-no-damage-hacks_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/cheat-manager-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-coin-master-hack-no-verification_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
font_00_sfnt_off00002f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F69 22720 bytes
SHA-256: 503b1460e6c224925b6f316484629a9d871b60b046a24b9f280cba1b9046f6b8
font_01_sfnt_off00006251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6251 19504 bytes
SHA-256: c100f30d1d236843f942c0b2c145249e2da3e1bf4a64c8db8a8a79a5573d20ac