Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b0ac00da17ee508…

MALICIOUS

PDF

44.3 KB Created: 2020-08-23 11:32:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3dc57c5a85270734af417ebd8dfc9a8b SHA-1: 1e0ba89fd771246a8259320980c7392b8f818f94 SHA-256: 3b0ac00da17ee508d2c3db8ed1c8a417920de21a3b8bce405d1513ef6b6d24c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms or redirectors. The document body, though partially corrupted, suggests a 'style guide' lure, which is likely a pretext to drive traffic to malicious or spam sites. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a URL leading to known malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/pify?keyword=boyfriend+jeans+style+guide In PDF document text
    • http://files.xmmphoto.com/uploads/1/3/0/7/130739227/jilanukigovaxakapak.pdfIn PDF document text
    • http://files.settajay.com/uploads/1/3/0/7/130738641/1c61e5d9bf4.pdfIn PDF document text
    • http://files.serenitysoundhealing.com/uploads/1/3/0/7/130776674/7311499.pdfIn PDF document text
    • http://files.ebrahimkhanilab.com/uploads/1/3/1/4/131454034/9650357.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/lipup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7570/6788/files/bimusexawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/21466590214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/39647109894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/second_trust_deed_form_california.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0898/3203/files/zubepakepiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2211/2152/files/theories_of_social_work.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/canon_eos_70d_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7243/8951/files/29677932227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6100/9829/files/81372713207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32506959796.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_off00006f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F27 5300 bytes
SHA-256: c1beff966a9d320ba3930d79b569a4639d01316cb15b8e9a1bc409247178e639
font_01_sfnt_off0000814f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814F 10320 bytes
SHA-256: 523fe25852c0d168480ea24780bcf2a1baa5a3b4174db08af7ba1768ccbbc392

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