PDF static analysis report

Static analysis result for SHA-256 dcd4519a80faf0df…

SUSPICIOUS

PDF

42.0 KB Created: 2021-05-19 13:10:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4f57b7231adadf0b10dcf216ac93edb9 SHA-1: 522893a129838a4b622f86654bc17406ca2a8516 SHA-256: dcd4519a80faf0df28cbc92c45b36fe3affb7e4616157b2f4b93cbd590052e12
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URI pointing to a suspicious URL, and the ML classifier strongly flagged it as malicious. The document body, though heavily obfuscated, contains references to game-related lures ('PUBG UC', 'Roblox') and a call-to-action phrase, suggesting a phishing or scam attempt. The presence of embedded URLs and the overall structure indicate an attempt to redirect the user to a malicious download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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/1330123889/offer-for-pubg-uc-game-hack PDF link annotation
    • http://www.marambio.com.ar/images/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/tiktok-free-hong-kong_GM835599320.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-earn_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/getrobux-ninja_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/rbxdemon_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/minecraft-xbox-360-free-download-code_GM479516143.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
stream_003_off000044a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44A1 27012 bytes
SHA-256: dd223b18f3314b5bbcc037ec8aed7a2307b9a7e92b7176e1fe48b4ff680a4151
font_01_sfnt_off000081fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FD 18204 bytes
SHA-256: c2f9b982ce16f489dd0f16cb5134332e6d2f12885600d4382dc1065284033d6e