Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b3e1e2777a330f4…

MALICIOUS

PDF

40.9 KB Created: 2020-07-30 15:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68dbe7044ba3690c3b2a76009d730037 SHA-1: 6cd04da5fc2bbe3241f8b99b10c856d10ae9ca1a SHA-256: 0b3e1e2777a330f4fc9137641ff6af432778cd2d265f7822b53a50d2622c7c23
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm designed to appear as a legitimate download source, but it redirects to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is part of a phishing or scam campaign. The ML classifier also strongly suggests maliciousness.

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.cc/pify?keyword=bedtime+stories+for+stressed+out+adults+pdf+download In PDF document text
    • http://files.elizabethkpetersonlab.com/uploads/1/3/1/3/131384789/sibufajoj-xuvini.pdfIn PDF document text
    • http://files.edelartworks.com/uploads/1/3/2/8/132815388/butewi-nolowezug-libidi-madawukukoki.pdfIn PDF document text
    • http://files.lonestarnstra.org/uploads/1/3/0/9/130969075/fosifavok.pdfIn PDF document text
    • http://files.laplandranch.com/uploads/1/3/0/7/130775484/ce8bfd2fed296e2.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/1/0432/2259/7800/files/73563552805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/93003965477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2193/3466/files/podelazuwisodaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5829/0070/files/17670404482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/30952764234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/74475738038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3750/7240/files/bozub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7652/5988/files/kisuzejosajoralefomix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/xojopebufobamitaxepuzujen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xuvoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6310/6968/files/74793518180.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_off000062a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A4 5212 bytes
SHA-256: 14e8dfab6fa7392b1795599f14b607007ba6b5a358b02bb049625db406d1db11
font_01_sfnt_off00007450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7450 9848 bytes
SHA-256: 440cdb7146d5ba3a6e6a2bb71505514d380be9bc44060744b0a658a1b0707052

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