Malicious PDF — malware analysis report

Static analysis result for SHA-256 504a651d94799228…

MALICIOUS

PDF

49.1 KB Created: 2021-06-04 01:33:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5049234c42a8a380c946c86aa6a5cf5e SHA-1: ab1f83c033b1ca89815b2ba76ba7c52a4404643f SHA-256: 504a651d947992280e9add5cb97437f7c71a3fb2a2ff32439f3754b6ee197453
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 0.9796

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 https://netcdn.online/app/431946152/free-robux-generator-no-verification-2021-game-hack PDF link annotation
    • http://www.opac.stieimalang.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/claim-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-get-free-roblox_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5279 25836 bytes
SHA-256: f0fa687289c067cbd82cb9c4300c7be25b734e09e72925d27e08eb540843410d
font_01_sfnt_off00008e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E17 3884 bytes
SHA-256: 64ea6bfd232c3abde76d8b86727203bfa3f935a5783cd0c1f642cf6d3fb42b29
font_02_sfnt_off00009abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ABF 19004 bytes
SHA-256: d45ec0ea85e3f4da21cb27ccd2cd6df352304457fff04a0939a67aeffe4f8bf1

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