Malicious PDF — malware analysis report

Static analysis result for SHA-256 af60b7119103d68f…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 11:37:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 38af34ff8486a9a95334eea0844f3e67 SHA-1: 4a00bbef4abcb76a4f6b62ac74b788ff33ce783a SHA-256: af60b7119103d68f53c5182a89458ff7c3d0f9d2daacc6ccbf5f79fd1b0fb4f0
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically offering game cheats and hacks. The ML classifier also strongly indicated maliciousness. The presence of these links suggests the document is designed to trick users into downloading malware or visiting compromised sites, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/cheat-engine-for-roblox-6.4-game-hack In PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-admin-commands-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-bear-mask-free_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-make-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-robux-on-a-iphone_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-ipad-robux-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/websites-for-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/cheat-engine-64-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/easy-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC9 22500 bytes
SHA-256: bceb623c494e95a55582aa183420892c933d3030f80f6948a056fa52252b7325
font_01_sfnt_off000060c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C8 19336 bytes
SHA-256: 7994147ebe1362017e68cb1eb5126e154d5e5a9fc5303c62d66c824785924d2a

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