Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9f3c6e9362d9f0d…

MALICIOUS

PDF

49.3 KB Created: 2020-03-27 10:47:22 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5734c3a95e7418e49b92831a4913d4c2 SHA-1: d49a22997f18487f23fe44838aec4d86972efe14 SHA-256: e9f3c6e9362d9f0dc3dce41c6f9eeb3e0044ecb621628075ce44c1b652308b97
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body, though partially corrupted, contains a URL that is also listed among the extracted URLs. No scripts were extracted from this sample. The primary attack pattern appears to be the distribution of numerous links, likely to manipulate search engine rankings or to lead users to malicious content.

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://benkregel.com/uploads/1/3/0/4/130483980/130483980.html#tipos+de+sustantivos+y+adjetivos+en+ingles+pdf
    • http://treeoflifepsychotherapy.com/uploads/1/3/0/6/130621483/dezosogale.pdf
    • http://qualityirrigationllc.com/uploads/1/3/0/8/130814060/1718833.pdf
    • http://bournemouthdrains.com/uploads/1/3/0/2/130291589/1640536.pdf
    • http://vaguely-specific.com/uploads/1/3/0/5/130538945/lazifatepulezezira.pdf
    • http://taidetails.com/uploads/1/3/0/5/130589261/977763.pdf
    • http://consciousspirithealing.com/uploads/1/3/0/3/130323210/dugovawusuretopalaxe.pdf
    • http://candykoalaplushieemporium.com/uploads/1/3/0/2/130289736/xevegofafox_pagawija_ruxadeterixake.pdf
    • http://premiereathleticrecruiting.net/uploads/1/3/0/5/130551072/kowunigigedoka.pdf
    • http://www.helenfentonart.ca/uploads/1/3/0/5/130551856/8f04c886c2.pdf
    • http://gorilla4x4.com/uploads/1/3/0/6/130639161/562345.pdf
    • http://mx.intensifyyoursport.com/uploads/1/3/0/2/130291779/gekofijov.pdf
    • http://mountaintimecolorado.com/uploads/1/3/0/7/130775527/vavotexirugav.pdf
    • http://dcigroup.ca/uploads/1/3/0/4/130490444/99719.pdf
    • http://theright.buzz/uploads/1/3/0/7/130775135/jisupenepogak-rimilezexidu-zebupo-lotiparirole.pdf
    • http://oryganj.com/uploads/1/3/0/7/130776481/734b0df3a950994.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ff6.bin
af085150d46487f6e6014e5139f3d56e180c003c960a3b04c87e3981ea3ef685		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF6 9036 bytes
font_01_sfnt_off0000a0dd.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0DD 16036 bytes

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