Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0fe51b3ea817a1…

MALICIOUS

PDF

71.9 KB Created: 2021-02-22 08:55:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 16149438c15648e090ce3ff1dd24f74c SHA-1: 7644f9e56b800ff0137716428eec2741f4e5aeff SHA-256: 2d0fe51b3ea817a1d90123099867dd767bf392c7b1cbcaae37446657fd2fb50d
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=zannino+funeral+home PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373757/normal_5ffe87e61b90b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496571/normal_60132d2b25983.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374372/normal_5fc57c98a8da0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411498/normal_600deee79025b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417422/normal_6007bfeb6e2f6.pdfIn PDF document text
    • https://worivoka.weebly.com/uploads/1/3/4/5/134588103/riwitaxi_nujokila_pazes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408984/normal_5fe557bee6916.pdfIn PDF document text
    • https://tojewenegekov.weebly.com/uploads/1/3/4/5/134502344/pamoxububazu-wujuvefikin-fijixonevev-mukoteded.pdfIn PDF document text
    • https://jidisoluko.weebly.com/uploads/1/3/6/0/136097174/sotapebizi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461761/normal_5fdec9114f6e1.pdfIn PDF document text
    • https://vowizata.weebly.com/uploads/1/3/1/8/131856430/jajiwosisijepivenuk.pdfIn PDF document text
    • https://nojesinas.weebly.com/uploads/1/3/0/9/130969722/dexig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480590/normal_601a03d042034.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/fezenur/chitta_jaggi_sidhu.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/49983792090.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE037 4788 bytes
SHA-256: ef0a86a28f10dfd7b145be1e30620e8d41ca6f391ced066f33c036e3efce1947
font_01_sfnt_off0000f056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF056 10080 bytes
SHA-256: bdc5faeb51f3520f411362707ada1a85b3ea936ed1a78c2c44a6764c34a3fc0a

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