Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f6e6eec73feee3…

MALICIOUS

PDF

42.6 KB Created: 2021-05-12 15:30:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2341ecded9acd2e2491f8fa8ecc69856 SHA-1: 5574c4c68049eef56406186f94a61f181bf37e06 SHA-256: 84f6e6eec73feee3e856867c8402657d78de2ecdde06864139446f114b87ccf0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link farm with numerous URLs related to game hacks and free items, suggesting a phishing or scam attempt. The presence of a 'Claim Free Robux' lure and a visual download button further supports this. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful websites.

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/claim-free-robux-button-game-hack
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/minecraft-texture-packs-free-download_GM479516143.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/free-mods-for-coin-master_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/google-play-coin-master-free-spins_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/minecraft-115-2-hacks_GM479516143.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-for-coin-master_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/extra-free-spins-for-coin-master_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/coin-master-root-hack_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-free_GM431946152.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-2021_GM431946152.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/free-daily-spins-coin-master-2021_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/how-to-get-free-hair-on-roblox_GM431946152.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/hack-coin-master-link_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/moonactive-free-spins-link_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/minecraft-free-download-android-apk-014-0_GM479516143.pdf
    • https://elearning.daarulhasan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-needed_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ab6.bin
9d3943a86e32a52f204c73ce1595fdf28111b21c5205f3df6eca9f06bca5cd28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB6 24540 bytes
font_01_sfnt_off000082df.bin
a65a8cc7dc4bcbd85f0772ba27416f5bddaec9beaf507a16cddd286b7aed5464		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82DF 18800 bytes

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