Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e46abbe4000b4e3…

MALICIOUS

PDF

35.6 KB Created: 2020-05-14 23:49:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad5dfe9e2ca8e1e4195b4f1b2a2d2bfa SHA-1: 220939ddab4954dd4d64630bd489fab8502d4aff SHA-256: 9e46abbe4000b4e3e154f404332d0f8cd86018da6b059633bc66f6be59a0c55f
92 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, which is indicative of a link farm or SEO poisoning attack. The embedded URLs lead to various PDF files hosted on different domains, suggesting a tactic to drive traffic or distribute further malicious content. No scripts were extracted, and the document body is heavily obfuscated, but the primary malicious intent appears to be the distribution of links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://mt-tasot.com/uploads/1/3/0/6/130640227/130640227.html#cercle+de+la+forme+boulevard+lannes
    • http://goodhealthrabbi.com/uploads/1/3/1/4/131483830/982417.pdf
    • http://cateslist.co/uploads/1/3/0/6/130639849/025b7.pdf
    • http://mariosfamilypizza.com/uploads/1/3/1/4/131407588/metozisus.pdf
    • http://hoodoohemp.com/uploads/1/3/0/8/130873912/tuzelilizulikewet.pdf
    • http://contrafrank.com/uploads/1/3/0/4/130477490/lujenekidagum.pdf
    • http://polar-tracks.com/uploads/1/3/1/6/131607117/4789125.pdf
    • http://lakevillekennel.com/uploads/1/3/1/6/131636852/4726141.pdf
    • http://proactivesolutionsservices.com/uploads/1/3/1/8/131871466/55570eb.pdf
    • http://leogarzaproperties.com/uploads/1/3/1/0/131070044/7845806.pdf
    • http://iamessentiallyhappy.com/uploads/1/3/1/4/131454733/0441aaf.pdf
    • http://connakt3.com/uploads/1/3/0/8/130814353/vofajodedu.pdf
    • http://sewaneepilates.com/uploads/1/3/0/5/130539072/853e3690a.pdf
    • http://yramtdesigns.com/uploads/1/3/0/7/130776006/b24b6937a714a.pdf
    • http://dinoson.com/uploads/1/3/0/6/130640164/juxagifobimag.pdf
    • http://nichellerenee.solutions/uploads/1/3/0/6/130603756/ada1ccc1ff1.pdf
    • http://ikaleeds.com/uploads/1/3/0/6/130604417/12aa61cada0.pdf
    • http://havananightsdenver.com/uploads/1/3/1/3/131380299/xosedulelaxitof-zamukesumawiti.pdf
    • http://jamaicaadz.com/uploads/1/3/1/4/131453348/fc3d9.pdf
    • http://trishanton.com/uploads/1/3/0/6/130639283/3680936.pdf
    • http://bluebirdcricket.com/uploads/1/3/0/7/130775432/minugilerolot.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_off00005c61.bin
ccbcd56e9b9f958ec293ae8e1ee8254a48e45b040ae3d6a22413e133e850d7b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C61 11336 bytes

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