Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe01ac4440238ee8…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 11:43:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cd1f1589c72ad8b054ed1bb8cccb3f93 SHA-1: 6cd8bdb19dd18ecfebe2a90bb47024499c672dc6 SHA-256: fe01ac4440238ee81345b66e503f00614ab75ff2a7ff6f2584a5f7331eb8be82
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, many of which are presented as game hacks or cheats, indicating a lure for users to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports this assessment. While no scripts were directly extracted, the document's structure and embedded links suggest an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/com-roblox-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/tiktok-free-view-links_GM835599320.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://discordIn 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_off000052e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E3 24356 bytes
SHA-256: 598e7075414319911cbd9e41b2c37e52be7f3c07edcba9bb2e74add591966a85
font_01_sfnt_off00008abb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABB 18044 bytes
SHA-256: eff775d92ef8bd491319eac85ef909b2198b057cd93ad57b214b1357dcb648b5

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