Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d01feffeb2863c…

MALICIOUS

PDF

40.5 KB Created: 2020-03-06 16:19:40 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: f2053f4635cbb1821ec2724881b7baff SHA-1: 3b4ee39f5911699b61ae0e358e0762943ff460a5 SHA-256: 07d01feffeb2863ccd182afbb7f8066be2eea7e843968e14c4cc69203b54070e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link farm. The embedded URLs point to various domains, likely serving as landing pages or further infection vectors.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://travelinalong.voyagerwebsites.com/uploads/1/3/0/6/130621128/130621128.html#can+cervical+spondylitis+cause+dizziness
    • http://roosterpr.agency/uploads/1/3/0/8/130813428/a53267.pdf
    • http://tc57.thecmhs.org/uploads/1/3/0/5/130551124/3561816.pdf
    • http://webdesignbycarole.com/uploads/1/3/0/4/130478772/2256868.pdf
    • http://abiaccompagnementbilansinsertio.com/uploads/1/3/0/2/130291545/juxuxobugela.pdf
    • http://objectrelationsrecords.com/uploads/1/3/0/3/130379295/pifip.pdf
    • http://marconhouse.co.uk/uploads/1/3/0/8/130814121/gokevigofis.pdf
    • http://ssautomotive.org/uploads/1/3/0/6/130621812/wojogebas.pdf
    • http://michaelgierl.com/uploads/1/3/0/7/130776814/milonanowewuwagoxex.pdf
    • http://crystalrivermainstreet.org/uploads/1/3/0/8/130813715/kuleloditis.pdf
    • http://peterandmichele.com/uploads/1/3/0/3/130379252/vupitilimi.pdf
    • http://newfiebullet.net/uploads/1/3/0/4/130494871/dozagejonowos.pdf
    • http://bhbyerly.com/uploads/1/3/0/5/130540567/lubabisikumufurufuwo.pdf
    • http://www.poopapaloosa.com/uploads/1/3/0/8/130874276/8c0ee79e7ab6f.pdf
    • http://hostmaster.memoriesinmyluggage.com.au/uploads/1/3/0/5/130539940/d31ffe5d40.pdf
    • http://adhisfoodiversity.com/uploads/1/3/0/4/130483390/e902002ffc99f.pdf
    • http://nataliaestradaeditor.com/uploads/1/3/0/5/130588757/8322692.pdf
    • http://libertyfiltration.com/uploads/1/3/0/6/130605493/dituvirafupog.pdf
    • http://www.ball-ray.cassidyturleysites.com/uploads/1/3/0/6/130620624/zekixosiw-bolikij-gavojanu.pdf
    • http://hattersdevelopment.com/uploads/1/3/0/7/130738991/244ac0f96e5e9c.pdf
    • http://englishfromhastings.com/uploads/1/3/0/5/130590200/1677950.pdf
    • http://fcinsuranceconference.com/uploads/1/3/0/8/130874655/vurefasorubim-gigule-namafimog.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_off00007825.bin
7a504297d5efcc85f2e0910991157d38447d7adacdb545a6c733180417ee1af0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7825 7124 bytes