Malicious PDF — malware analysis report

Static analysis result for SHA-256 cadabe72e41cd876…

MALICIOUS

PDF

45.6 KB Created: 2020-03-20 12:39:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d74c4c6f19856e1d9b7ac0b9cfe213ba SHA-1: ea4cefd0d1c19b890985350c7cce268c01c1cfbc SHA-256: cadabe72e41cd87662dd49435d2fe10b9194df7b375278dcd9be6dddc7a95f18
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though heavily obfuscated, contains references to an 'inbound marketing funnel infographic' and includes numerous URLs pointing to other PDF files, suggesting a link farm or redirection scheme. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://sheriffproperties.com/uploads/1/3/0/6/130605259/130605259.html#inbound+marketing+funnel+infographic
    • http://massimocapra.net/uploads/1/3/0/5/130588657/jiperameveg.pdf
    • http://www.radioquetal.com/uploads/1/3/0/7/130740357/zekezexoxej.pdf
    • http://guitarlessonsinarvada.com/uploads/1/3/0/7/130739878/4d3f42.pdf
    • http://dasignsuorce.com/uploads/1/3/0/6/130620325/xorejaxobugif.pdf
    • http://imedcareers.com/uploads/1/3/0/4/130435757/xorebezawisodef-pixibu-lisipibima.pdf
    • http://perfectlywrappedllc.com/uploads/1/3/0/6/130604806/wamako.pdf
    • http://duriantrees.com/uploads/1/3/0/5/130590312/6460312.pdf
    • http://genevieveglam.com/uploads/1/3/1/0/131071113/fokepagin.pdf
    • http://mail.mhdany.com/uploads/1/3/0/4/130476262/buxapixulabiseganaz.pdf
    • http://karendarnborough.com/uploads/1/3/0/5/130539992/biwinasudovu-zaposugegub-tabedafawojiwir-nupemilodujigod.pdf
    • http://gmtenniscenter.com/uploads/1/3/0/5/130588810/vatop_dijowadogir_danajudovavi_biginobikatopi.pdf
    • http://mtidaarkansas.com/uploads/1/3/0/6/130621233/wifejo.pdf
    • http://fancycamperhomebrew.com/uploads/1/3/0/9/130969648/safener.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_off000089bc.bin
7d0cc7dd69679dc57140b5a38e8f1a98a7792e789045261a19c02091bed7e1c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89BC 8268 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.