Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ff48b79cf206883…

MALICIOUS

PDF

41.2 KB Created: 2021-05-10 23:06:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c7600855298f1bdefee79add8eeddabc SHA-1: 7021adbb1fbc881cdfa57c72f3e6593089f0c774 SHA-256: 0ff48b79cf2068838e026ae59a8b755e9ad70dac8d0db07a1ecfa3fab76e3b37
102 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 0.9988

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/easy-points-gg-game-hack PDF link annotation
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/roblox-free-items_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/cone-master_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/free-coin-master-account_GM406889139.pdfIn PDF document text
    • https://elearningmtsn33jkt.net/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3ERoblox%20is%20a%20game%20creation%20platform/game%20engine%20that%20allows%20users%20to%20design%20their%20own%20games%20and%20play%20a%20wide%20variety%20of%20different%20types%20of%20games%20created%20by%20other%20users.%3Cp%3E%3Cp%3Edownload%20tool%20for%20free%20robux%3Cp%3E%3Cp%3Eroblox%20reaping%20simulator%20shards%20hack%3Cp%3E%3Cp%3ERoblox:%20I%20play%20Roblox%20online%20in%20the%20game%20Tiny%20Tanks.%20This%20game%20is%20a%20ton%20of%20fun.%20Join%20the%20Tiny%20Tanks%20Discord%20here!%20-%20discord.gg/AhWxCwj%20We%20have%20ranked%201v1%20and%20team%20matches,%20tactics%20are%20discussed.%3Cp%3E%3Cp%3ERoblox%20Fun%20Xyz%20Promo.%20CODES%20In PDF document text
    • http://192.168.0.99/%20%3Cp%3E%3Cp%3ERoblox%20is%20a%20game%20creation%20platform/game%20engine%20that%20allows%20users%20to%20design%20their%20own%20games%20and%20play%20a%20wide%20variety%20of%20different%20types%20of%20games%20created%20by%20other%20users.%3Cp%3E%3Cp%3Edownload%20tool%20for%20free%20robux%3Cp%3E%3Cp%3Eroblox%20reaping%20simulator%20shards%20hack%3Cp%3E%3Cp%3ERoblox:%20I%20play%20Roblox%20online%20in%20the%20game%20Tiny%20Tanks.%20This%20game%20is%20a%20ton%20of%20fun.%20Join%PDF link annotation
    • 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_off00004e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1F 22732 bytes
SHA-256: 5d48f794e156e6590629e893bfd3bd6a43db8278e051a678bc3bafa6e77c7f9d
font_01_sfnt_off0000809f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809F 17720 bytes
SHA-256: 22387a48639c63841f6cdc70857938599c0ea82d1523eb38d90d7eda864f32e7