Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c12a0c2714d435…

MALICIOUS

PDF

36.2 KB Created: 2021-06-27 13:17:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 4a6a0f7b42082669e72cca9c24ea0c9c SHA-1: 8f6f40598b4dac69931d3ebeef62057ee1620e32 SHA-256: 34c12a0c2714d435e741d766ae7538a51a6cab8e93d3cefd41e4f8b8466e4ad4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document exhibits characteristics of a malicious lure, employing a large number of external links to various game-related cheat and download sites. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a 'download button' heuristic further supports this assessment. The document's content and structure suggest an attempt to trick users into visiting potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-shinobi-life-free-spins-2021-game-hack PDF link annotation
    • http://library.yamasi.ac.id//repository/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-hack-no-virus_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/get-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-robux-giver-tool-hack-tool-download_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-jailbreak-money-hack-december-2021_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
font_00_sfnt_off000035f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35F5 22276 bytes
SHA-256: 4198a73a981b9d02dd374c003d8c7bc518890a9473c7131a117daeba0b29817c
font_01_sfnt_off00006754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6754 19516 bytes
SHA-256: 22eaf5b6b380c7cc4060b40c8ac164972b85c869b1f6a413767013f29b93141a

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