Malicious PDF — malware analysis report

Static analysis result for SHA-256 b577442187110051…

MALICIOUS

PDF

43.5 KB Created: 2021-05-17 08:44:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3740935caa9810770116b65d0fe709fa SHA-1: c65ece4cce248b58a6f7231e4bacd42560d1f0f4 SHA-256: b577442187110051ef092e17052112fec97155285ec1ab0ab5b3715b0589f219
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high number of external links, many of which are SEO-optimized and point to potentially malicious content related to hacking and in-game currency. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URIs and a 'download button' lure further supports a malicious intent. The document likely serves as a lure to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack PDF link annotation
    • https://consorziocsa-asicaivano.it/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/roblox-points_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/get-free-robux-without-human-verification_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_003_off00004991.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4991 25300 bytes
SHA-256: a14bd117ee888ec8208e6ed46617e0018ff5196ee2d800dd3bac758ea72d5980
font_01_sfnt_off00008480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8480 19172 bytes
SHA-256: 0a4c192dd0d49b475d670e2028b2e3d9bc88486e58824ff416e2d46c0acce708

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