Malicious PDF — malware analysis report

Static analysis result for SHA-256 404bc77eb69b6ed4…

MALICIOUS

PDF

47.3 KB Created: 2020-03-22 10:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d83f4606303dc8416e41c33dd70cd069 SHA-1: 946d03b6a132cbd8d942ddf1eb96282746476c44 SHA-256: 404bc77eb69b6ed4f02a1d3519b75e8fc3f6260b78aeef1e1673371ad95238f0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many pointing to other PDF files hosted on various domains. This pattern is indicative of a link farm or SEO manipulation tactic. The presence of a callback lure suggests a potential phishing or social engineering attempt, aiming to trick users into interacting further. No scripts were extracted from this sample, limiting the ability to determine a more specific payload or intent beyond link manipulation.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://eidolonsys.com/uploads/1/3/0/7/130776577/130776577.html#cub+cadet+lt1046+parts+manual
    • http://sheri-johnson.com/uploads/1/3/0/6/130603941/f453c27c.pdf
    • http://globalmarketingnow.net/uploads/1/3/0/6/130640229/vajofek.pdf
    • http://fengshuiyongpin.com/uploads/1/3/0/6/130604715/galuwavowiri.pdf
    • http://chirpsofftheoldblock.com/uploads/1/3/0/3/130379314/2278350.pdf
    • http://cartonone.com/uploads/1/3/0/3/130323568/faparuxukudoxuvikit.pdf
    • http://www.alturaenviromental.com/uploads/1/3/0/4/130483408/2196ff4a0400.pdf
    • http://portaferrysailsandsounds.co.uk/uploads/1/3/0/3/130379155/5536538.pdf
    • http://mergeweekend.com/uploads/1/3/0/7/130775643/xufux.pdf
    • http://bellafiore-charlotte.com/uploads/1/3/0/6/130620651/dadubugojiluf.pdf
    • http://theoperapreneur.com/uploads/1/3/0/5/130588344/337565.pdf
    • http://mail.lb-portugiesisch.com/uploads/1/3/0/7/130775211/6415802.pdf
    • http://firstollie.org/uploads/1/3/0/6/130640094/d5c31290b3ebf1d.pdf
    • http://mcfallwebdesigns.com/uploads/1/3/0/3/130379246/vosaralabo_mebamume.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_off00008e12.bin
8d94d89948d793424b1daf938bd1bd5fe5f56b008e7eb36d68ae34dda724da6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E12 8580 bytes

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