Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f36a140d30abc03…

MALICIOUS

PDF

75.6 KB Created: 2021-02-19 17:22:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 458ab91b9052d8a3648ab8930266e9b4 SHA-1: bf329d8ebad9e744e94c5c2571254796181e33fd SHA-256: 7f36a140d30abc03d98c108df86de7c7ddac3ca3f3af8ac65bbd9ded70caa3e6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://baarspo.ru/wix?keyword=mediacom+channel+guide+iowa+city PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485699/normal_5fd6a8c21cd74.pdfIn PDF document text
    • https://cdn.sqhk.co/varaxupumami/hjbgcrh/vega_tools_llc.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxinugad/cTYyJAP/bulikuvexog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489251/normal_600d0a8e60cff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393189/normal_600669a1b1be7.pdfIn PDF document text
    • https://nuzuloluxeguvox.weebly.com/uploads/1/3/4/8/134874948/337620.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/hgYichj/76805919339.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/hicjcgj/munogademedozeliziju.pdfIn PDF document text
    • https://cdn.sqhk.co/nujekezitifi/BD7aMha/xizofanetofikozukigedo.pdfIn PDF document text
    • https://cdn.sqhk.co/venitalobeni/nggkaLH/xokamivup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478415/normal_60124f0999c55.pdfIn PDF document text
    • https://kixaxadamakike.weebly.com/uploads/1/3/0/7/130775249/9fd59c85bc91b3f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401716/normal_5ffe05cad580a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384316/normal_5fc746d8b74d7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410000/normal_5fe103e065a52.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pazovugal/34414378796.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/1285480765.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/96447174109.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 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8D 5276 bytes
SHA-256: 8e6ada676f10ff43c4e45d09203f859c6200901152124c639575b6fc420215ff
font_01_sfnt_off0000fd83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD83 10480 bytes
SHA-256: fbc6f888f10ac3b02f65f427d2728f045bd7ca4b2a2d216df87e0fbdb20c5900

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