Malicious PDF — malware analysis report

Static analysis result for SHA-256 95298b79f8bd9f73…

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 07:15:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b71fbd20610dc87b92e5a1a6964b927b SHA-1: 7ddc193529977dd439a2cc78b1d91ebbd64b372f SHA-256: 95298b79f8bd9f73d46bfe59fe469a5074eb57438cd7bbe9220ddfe64d09a971
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/how-to-hack-someone-on-roblox-like-anonymous-youtube-game-hack. The document body and heuristics indicate a lure related to game hacks and generators, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-hack-someone-on-roblox-like-anonymous-youtube-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-robux-hack-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/rbx-sites_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/who-hacked-jaydee-854-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/you-promised-my-son-you-would-give-him-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-game-play-online-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/you-to-get-free-robux-no-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/1b-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-cbro-skins-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-star-codes-2021-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/50-free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-cards_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_off00002f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F55 22092 bytes
SHA-256: 5da21e45f8fe6978f3e59cbcf06714219b2d9dd996c308a3d0d2ed3bb29c16d8
font_01_sfnt_off0000602e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602E 19784 bytes
SHA-256: 62d94ee58372a555132a52cee59f16f21c7f824d66bc99217fb3120830e28f6a