Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a28f66c810e1aa…

MALICIOUS

PDF

35.2 KB Created: 2020-06-12 05:58:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2ef6e040ab6cb746957ef6c378b8a44 SHA-1: 8240b1e46a9c7251cbafe764bcb1bf773c48e267 SHA-256: d0a28f66c810e1aa2ab7f95ed26fe4c3d8f7035982564212ed50111c09e7d1d3
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains references to book titles and authoring tools, suggesting a potential lure for users seeking academic or technical documents. The primary attack pattern involves directing users to a large farm of external PDF links, likely for SEO poisoning or to distribute malicious content. The presence of urgency language further supports a phishing or scam attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://thymeouttravel.voyagerwebsites.com/uploads/1/3/1/4/131483245/131483245.html#between+worlds+a+reader+rhetoric+and+handbook+7th+edition+pdf
    • http://trinsicapparel.com/uploads/1/3/0/4/130490378/zaxapubadugiv.pdf
    • http://autodiscover.ladse.org/uploads/1/3/0/6/130604601/tovera.pdf
    • http://storming51merch.com/uploads/1/3/1/4/131437656/4326161.pdf
    • http://grazianomacaronicompany.com/uploads/1/3/0/5/130550859/vesam_texunot_sejeba.pdf
    • http://5skys.com/uploads/1/3/0/6/130639400/2291894.pdf
    • http://mynarrativeofmusic.com/uploads/1/3/0/7/130775471/sepoxu.pdf
    • http://harmony-4you.com/uploads/1/3/0/8/130874591/tekox_doxalamotik.pdf
    • http://scotnorfoto.com/uploads/1/3/0/2/130270823/3751858.pdf
    • http://thisisblacklung.co.uk/uploads/1/3/1/3/131382217/ac969b.pdf
    • http://ddchealth.org/uploads/1/3/0/6/130621281/2504082.pdf
    • http://thermovision.org/uploads/1/3/0/7/130739150/nebonefi-lefejo.pdf
    • https://rudukaleditu308957543.files.wordpress.com/2020/06/43847525762.pdf
    • https://juxisaw.files.wordpress.com/2020/06/11958967320.pdf
    • https://jewokiwisaze.files.wordpress.com/2020/06/vaxajuz.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d83.bin
a6ab9598f2394bd1d2a82a54ce2cfef92e81124c80c1beb273e5c1b8265abfb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D83 10368 bytes

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