Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85c09d6f1e8a70d…

MALICIOUS

PDF

54.3 KB Created: 2020-06-05 22:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 7266865c0d22feca5ac700460b2c646f SHA-1: 7ad254844da31271fc7bdc4f9bb5cecac971f1e9 SHA-256: e85c09d6f1e8a70d1bdbbe40e083afa25b09b6cb3d56ab832e3003e9e6511a4f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to lure users to compromised or malicious domains. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://sativaseal.ca/uploads/1/3/1/6/131606393/131606393.html#les+limites+de+la+d%25C3%25A9mocratie+ath%25C3%25A9nienne PDF link annotation
    • http://maceventsco.com/uploads/1/3/0/6/130621857/kufagezafikolid.pdfIn PDF document text
    • http://mail.bigfindivers.com/uploads/1/3/0/6/130605176/5879084.pdfIn PDF document text
    • http://fantasyapply.com/uploads/1/3/0/3/130312916/vepigibi_zalolonalatasi_gasezufono_mitubo.pdfIn PDF document text
    • http://spencersridge.com/uploads/1/3/0/6/130621997/1405599.pdfIn PDF document text
    • http://navisys.se/uploads/1/3/0/5/130547150/4bca1d.pdfIn PDF document text
    • http://mta-sts.photographybyjerrika.com/uploads/1/3/0/4/130483325/906212.pdfIn PDF document text
    • http://braun-hlks.com/uploads/1/3/0/5/130588556/5201753.pdfIn PDF document text
    • http://counselinginnashville.com/uploads/1/3/0/9/130969188/9c639249bb2fbd.pdfIn PDF document text
    • http://sativaseal.ca/uploads/1/3/1/6/131606393/terms.htmlIn PDF document text
    • http://sativaseal.ca/uploads/1/3/1/6/131606393/dmca.htmlIn PDF document text
    • http://sativaseal.ca/uploads/1/3/1/6/131606393/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://jeposukaza.files.wordpress.com/2020/06/mirojemiguwas.pdfIn PDF document text
    • https://jimodubupus.files.wordpress.com/2020/06/81511408326.pdfIn PDF document text
    • https://masivamup.files.wordpress.com/2020/06/92407913332.pdfIn PDF document text
    • https://wibakozom510253839.files.wordpress.com/2020/06/xakileg.pdfIn PDF document text
    • https://gesulejowav.files.wordpress.com/2020/06/57769312112.pdfIn PDF document text
    • https://kikegif146919773.files.wordpress.com/2020/06/74306260259.pdfIn PDF document text
    • https://lawitijuw.files.wordpress.com/2020/06/41036555967.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD7 16192 bytes
SHA-256: 9bebbb3aaa22593233fce4a31142cd52316d45559bd11c038c91645f368db6d8

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