Malicious PDF — malware analysis report

Static analysis result for SHA-256 edde0fa17c3a2f8c…

MALICIOUS

PDF

44.2 KB Created: 2020-04-03 12:01:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bbf06785921972ef6fed101a935c49db SHA-1: 1e80edda44d7f50c61cf0d71d4abb7aad4bf9878 SHA-256: edde0fa17c3a2f8c78c09f2c866eb352c271a72ebbc2d225aa08cda9335c37b6
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, suggests a lure related to job offers. The primary attack pattern involves directing users to a multitude of external URLs, likely for SEO spam or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://buyboxblog.com/uploads/1/3/0/8/130874051/130874051.html#ofertas+de+empleo+en+gerente+de+recursos+humanos
    • http://robontherun.com/uploads/1/3/0/8/130813849/mipinunaniwob.pdf
    • http://garitoproductions.com/uploads/1/3/0/6/130604694/susabi-jazefefifexili-noveda-litezekekew.pdf
    • http://bushyidoc.com/uploads/1/3/0/5/130550744/4262353.pdf
    • http://northcoastair.net/uploads/1/3/0/6/130639467/25965f06e5.pdf
    • http://parislineone.com/uploads/1/3/0/5/130540017/eea4c1.pdf
    • http://gcpremajors.org/uploads/1/3/0/6/130621214/2d63b11c25211b.pdf
    • http://ibwinteriors.net/uploads/1/3/0/6/130603943/rumixidowotak.pdf
    • http://minis3dd.com/uploads/1/3/0/2/130273753/1398860.pdf
    • http://joegoethals.com/uploads/1/3/1/4/131454238/zuvuti_libixi_wafotuve_wetulo.pdf
    • http://bookkeepingplusmore.net/uploads/1/3/0/6/130604031/dafujibajedesuz.pdf
    • http://naatransportation.com/uploads/1/3/0/4/130475936/3453215.pdf
    • http://elainepace.com/uploads/1/3/0/8/130813921/2585462.pdf
    • http://2ndtosun.com/uploads/1/3/1/1/131163981/vozopotowajulom.pdf
    • http://veroniquechiassontherapyservices.com/uploads/1/3/0/7/130776489/4914825.pdf
    • http://searchitforme.com/uploads/1/3/0/2/130291523/5878943.pdf
    • http://vollmotel.com/uploads/1/3/0/6/130639811/59c220.pdf
    • http://www.franciesfrippery.com/uploads/1/3/1/4/131453111/zavulogodol.pdf
    • http://mhcchurch.org/uploads/1/3/0/6/130620839/45dc86f80ce4560.pdf
    • http://charmedincharleston.com/uploads/1/3/0/4/130483142/514307.pdf
    • http://breakingmovies.com/uploads/1/3/0/7/130775748/sokodaseb_pufolugumer.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_off00007e5d.bin
3b17a9c832b5de4c188e3e817858567214b7248e778a64599e56a9831f533d64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5D 9740 bytes

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