Malicious PDF — malware analysis report

Static analysis result for SHA-256 598a7637bddd31ce…

MALICIOUS

PDF

35.3 KB Created: 2021-06-26 01:40:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 716dff76ffd122e639f575cc38f241ea SHA-1: 0ca4bbab09e66e654c774029ea9e3a698be05c75 SHA-256: 598a7637bddd31ce1a81f0676f9c51f4ff4eb891808d587820209fec3b5361dd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to game hacks and generators, specifically mentioning 'Cod Roblox Robux Hack'. The primary link, http://netcdn.co/app/431946152/cod-roblox-robux-hack-game-hack, is flagged as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for malware download or phishing.

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/cod-roblox-robux-hack-game-hack PDF link annotation
    • http://library.ulb.ac.id/repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-promo-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/collect-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-tik-tok-quiz_GM835599320.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/comment-avoir-des-robux-gratuit-sur-roblox-2021-sans-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/robux-cheat_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-place-rewards_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/rbxcity-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-jailbreak-cash-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-gift-in-big-paintball-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-do-u-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robloxbux-us-generator_GM431946152.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_off00003168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3168 23212 bytes
SHA-256: c941f4bdc958207f1cf4fab2797285cd0bc2d74f4d4c23dd30c246e64c215c64
font_01_sfnt_off00006555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6555 18972 bytes
SHA-256: 9a80afaa78395cb8965e906e5671ef4ff848f4ed4f18e81b19c27b73bef843ea

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