Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20c5a931bf3740d…

MALICIOUS

PDF

33.9 KB Created: 2021-06-25 15:57:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4190ab3c6838b206eb269422ddbd9f0c SHA-1: 80f40263e9510459eb9e10ee9d81a74272d66093 SHA-256: f20c5a931bf3740db256561c6e2c4bc2f6bf79a17edc3dfba79e8309f9f4a05c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded URLs and a lure related to free game hacks, specifically mentioning 'Roblox Spiderman Package Full Suit Free'. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-spiderman-package-full-suit-free-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to potentially malicious content, likely for credential harvesting or malware distribution. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-spiderman-package-full-suit-free-game-hack PDF link annotation
    • http://perpus.unbi.ac.id/slims7_cendana//repository/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-hack-clients-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-roblox-printables_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-hack-otros-jugadores_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-roblox-fortnite-gameplay_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-synapse-x-download-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/get-free-robux-easiest-way_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-rc7-cracked-hack-exploit-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-get-into-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-highschool-tix-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/free-minecraft-codes_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
font_00_sfnt_off00002bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD7 22296 bytes
SHA-256: 3e0091e50f74d943a02521ae345a121572d8bff9ec5e45afe8be4f9ebaf81c83
font_01_sfnt_off00005d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D65 19948 bytes
SHA-256: 73870993da0803dd57f3beb096d34a7da0e09ad0f1cbd195c87b74366314a332

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