Malicious PDF — malware analysis report

Static analysis result for SHA-256 0362959892981988…

MALICIOUS

PDF

42.7 KB Created: 2021-05-19 22:32:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: c9c0630b675b032a3273c88fa04e54a5 SHA-1: 5d66a45ad54d64eb64b7bd9a33a4a39571a52fbb SHA-256: 0362959892981988210d95317a61eb2afb61fd6d6a5bfdf10edadedd66090ad7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are SEO-optimized and point to pages related to free in-game currency or hacks. The primary URL, https://netcdn.xyz/app/431946152/free-robux-com-2021-game-hack, suggests a lure for obtaining virtual currency, which is a common tactic for distributing malware or conducting scams. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into downloading malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-robux-com-2021-game-hack PDF link annotation
    • http://www.meslekpatent.com/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://www.meslekpatent.com/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://www.meslekpatent.com/images/daily-coin-master-free-spins_GM406889139.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_off00004a8f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A8F 24816 bytes
SHA-256: 36c0a5e5da6b267d337d3eaa589454244afb5b6633594a60ff30f42f6aa54ef1
font_01_sfnt_off00008354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8354 18676 bytes
SHA-256: db7deb15448d884d15c6a42f746ab8a768d26593fd7e085f0109997e06cd96ff

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