Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6f15e4ede21456…

MALICIOUS

PDF

35.1 KB Created: 2021-07-01 22:40:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 8018188d308f9801254c25055b1becfd SHA-1: 2c079fe56b036817b9e7cdf8350afbf1b5c7c2cf SHA-256: db6f15e4ede21456dac7f0558961eb525bf18b353daf377e447a95a1c44e6e4f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promotes hacking and obtaining free in-game currency for popular games. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract traffic. The ML classifier also flagged this PDF as malicious with high confidence. The primary attack pattern involves luring users to external sites that likely host further malicious content or scams.

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/how-to-hack-roblox-so-i-can-get-robux-game-hack PDF link annotation
    • http://uilis.unsyiah.ac.id/ebook/repository/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/farming-simulator-hack-roblox-script_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/get-action-hair-free-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-face-roblox-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/im-being-called-a-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/cheat-codes-no-promises-roblox-id_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-roblox-bot-accounts_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-jailbreak-noclip-cheat-engine-script_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/eviction-notice-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/escape-the-supermarket-in-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/como-hackear-electric-statesrp-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/vehicle-simulator-hack-script-roblox_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_off000031f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F2 22468 bytes
SHA-256: 12028d2322ff3ee0d35ab15ec9c9977ebac6bbc8cdec0d8d84d2d2d121b17ea2
font_01_sfnt_off000063f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F4 19064 bytes
SHA-256: cc535015137cc2ba3e3d722eed648e2479aa9f7323f584e6ac43c457e4729e80

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