Malicious PDF — malware analysis report

Static analysis result for SHA-256 57edd8a6e75f6dee…

MALICIOUS

PDF

31.0 KB Created: 2020-05-30 14:42:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0493223deb454e74fcae85b0ca5655a SHA-1: 3e9ff8f2d33b894ab9f4f65a5603e0d99d9472fd SHA-256: 57edd8a6e75f6dee7bb9892f54af817e39438e9a2b35c193bcf96a3062cfbbad
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier with high confidence. It contains numerous external links, many of which are structured to appear as SEO-optimized content, pointing to various domains. The document body, though partially garbled, suggests a lure related to a '2002 nissan maxima service manual pdf', indicating a potential phishing or malware distribution scheme disguised as helpful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

Heuristics 3

  • 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.
  • 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://crossing-the-gap.com/uploads/1/3/1/4/131411762/131411762.html#2002+nissan+maxima+service+manual+pdf
    • http://safehavenhomes.co.uk/uploads/1/3/0/6/130639528/zejadow.pdf
    • http://jamiejolley.com/uploads/1/3/0/9/130969032/gevoti_winoneli_depawik_zujipeziv.pdf
    • http://chrishenkaline.com/uploads/1/3/0/9/130969690/legewuxetika_varele.pdf
    • http://catrustact.org/uploads/1/3/0/6/130605248/jezodoxamat-vamibog-wigiregurofo.pdf
    • http://team4foods.com/uploads/1/3/0/6/130639904/5601346.pdf
    • http://suncitycarolinalakes.net/uploads/1/3/0/2/130291696/viperuvesone.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_off00004df5.bin
ba982e70a50944592aa37cf9bab553c590707f13c34cf76d429bc6a7d5713a7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF5 10336 bytes

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