Malicious PDF — malware analysis report

Static analysis result for SHA-256 2676716fb1b15f71…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 12:24:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c5856943017fd1e24e93bca316b02b05 SHA-1: d2a7440da44fa69b1c477503f89acfb7afc4f0d6 SHA-256: 2676716fb1b15f71a4db7b3666055175fb0497168bf368577ae99b04a5031fdc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a 'game hack' redirect lure, pointing to the URL http://netcdn.tw/app/431946152/free-gfx-roblox-game-hack. The document body also contains this URL and related keywords like 'Roblox' and 'free Robux', indicating a social engineering attempt to trick users into visiting a potentially malicious site. The ML classifier also strongly flagged this PDF as malicious.

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/431946152/free-gfx-roblox-game-hack PDF link annotation
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-on-computer-no-inspect_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-do-i-hack-roblox-game_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-free-workinggg_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-codes-october-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/e-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-infinite-robux-cheat_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/can-you-go-to-jail-for-downloading-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-cheat-engine-download-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-roblox-codes-unused_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-roblox-western-outfit_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3068 22624 bytes
SHA-256: 080227871269e9240c63e887e9cc879f313d77032d0e4f633e7190eefa10f008
font_01_sfnt_off000062d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D0 18652 bytes
SHA-256: 0d63b7d195b4368a7510cc9063280e633f1dd81e04eecc72eeca598e4957848f

Open this report in the interactive analyzer, or submit your own file for analysis.