Malicious PDF — malware analysis report

Static analysis result for SHA-256 f270674463bfa9e3…

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 09:47:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6bea38f891f22f17f5127602b570a476 SHA-1: b522953caf2a4bbd59ac7f511fefc7f8c3a99b7c SHA-256: f270674463bfa9e39ebec73cd77f90b63e30d94e98800f1c28b1207cf1f4872e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector. The embedded URL, http://netcdn.tw/app/406889139/cm-spin-link-game-hack, is the primary indicator of malicious intent. The document body and metadata suggest it is designed to trick users into visiting this URL, likely to download further malware or engage in 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.tw/app/406889139/cm-spin-link-game-hack PDF link annotation
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-use-the-sex-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-hero-tower-tycoon-cheat-codes_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/zeluc-roblox-exploit-hacks_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-games-that-i-can-play-trackid-sp006_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-often-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/hwo-to-get-free-robux-with-out-hacks-or-illeagley_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-glitch-december-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/best-free-thumbnail-maker-for-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-look-like-a-guest-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/robux-hack-2021-download_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
stream_002_off000030df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30DF 23240 bytes
SHA-256: 41850c0cb96f1196023628de75f0015ee5b5af73a534ecb1838e8b1aa44a726e
font_01_sfnt_off00006522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6522 18192 bytes
SHA-256: 41e3baa9d81de0c91eca0ed01646823e50051fec49952da9978d1b8663e0a903

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