Malicious PDF — malware analysis report

Static analysis result for SHA-256 24096c53ae57861e…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 19:21:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: af248254ac3f982dc2a6d69153a7a558 SHA-1: d3b6069f9a4ce324a94f54ccb31e694c242802f9 SHA-256: 24096c53ae57861e734f0268f51de1527ab3ae76d772e7fb4c7add588b9a6ef1
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that lead to pages offering game cheats and surveys, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm suggests an effort to distribute malicious content or harvest credentials. No scripts were extracted, but the overall structure and URL distribution point towards a malicious intent to redirect users to potentially harmful sites.

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/roblox-survey-for-robux-game-hack
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey_GM431946152.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/how-to-hack-someone-on-roblox_GM431946152.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/how-to-hack-someones-minecraft-account_GM479516143.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-using-es-file_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/free-roblox-clothes-for-your-avatar_GM431946152.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-today_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/today-free-spin-coin-master_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-2021_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download-2021_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/easy-way-to-get-free-robux_GM431946152.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-website_GM431946152.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/free-bling-bling-card-coin-master_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/can-i-get-free-robux_GM431946152.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/minecraft-diamond-finder-hack_GM479516143.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
    • https://elearning.min5bandarlampung.sch.id/__statics/gudangsoal/files/coin-master-free-gold-cards_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004be9.bin
b56dcb26248e60b6823e78a460e7e237eb36c691603d4968334d8841b9e789d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE9 24912 bytes
font_01_sfnt_off000084b6.bin
ae6046f54f30a988cdb725d80ad595b06c2ad6fcba40520792a24e4442a912fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84B6 18384 bytes

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