Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a1ab3c114e80023…

MALICIOUS

PDF

42.0 KB Created: 2020-04-27 00:04:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7e6833871f9449fb332c1389f52255e2 SHA-1: a8e53a116eef71a4b6cec770068586e111dabf66 SHA-256: 3a1ab3c114e80023388a370124294b3ed65a4cda9729a98d923772ef489b2ae8
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on unrelated domains and appear to be part of a link farm. The document body, though partially corrupted, suggests a lure related to a 'Canadian citizenship test study guide'. The heuristic 'PDF_SEO_LINK_FARM' indicates a technique to artificially inflate search engine rankings, often used to host malicious content. The presence of multiple unknown URLs strongly suggests a redirection or download 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://bhartdesigns.com/uploads/1/3/0/2/130273581/130273581.html#new+study+guide+canadian+citizenship+test
    • http://acesdeli.com/uploads/1/3/1/4/131406369/jipugewujelufo.pdf
    • http://75yrsofmargaret.com/uploads/1/3/1/4/131483108/f9e26face5390f.pdf
    • http://scorpiotranslogisticservice.com/uploads/1/3/0/6/130621998/969700.pdf
    • http://quepasaconagelicaatondo.com/uploads/1/3/0/6/130603873/mojejo.pdf
    • http://mishmashthefunshop.com/uploads/1/3/1/4/131452963/zunopanosexepi.pdf
    • http://feedthehippie.com/uploads/1/3/0/4/130483961/bizaxubafoza-zageka-rozigilirimi.pdf
    • http://idxconf.com/uploads/1/3/1/3/131380604/budusanagimo_vetiwenul_judixo.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_off00007a82.bin
62ee9abe93a40998f84ddc913455dcba659a985a3895f6f97035385f517854fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A82 8736 bytes

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