Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fb184e5ef89672a…

MALICIOUS

PDF

44.1 KB Created: 2020-08-20 18:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03d6a93fd0dad7fc72ca17fc71379638 SHA-1: dc44a432a47011a01eb5441ff55bb95d5521026c SHA-256: 3fb184e5ef89672a98bbcc46aa5269cfd93cfac21a16729092693a1481bbe9a2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, disguised as 'Google search engine evaluator guidelines', redirects to a malicious URL (https://ttraff.cc/pify?keyword=google+search+engine+evaluator+guidelines). This indicates a social engineering attack aiming to redirect users to malicious infrastructure. No scripts were extracted from this sample.

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=google+search+engine+evaluator+guidelines In PDF document text
    • http://files.jakspp.net/uploads/1/3/0/7/130776366/7535618.pdfIn PDF document text
    • http://mijalep.civility-project.com/uploads/1/3/0/7/130739777/08f1b88e123683.pdfIn PDF document text
    • http://files.stayingsharpasasenior.com/uploads/1/3/0/7/130739154/suguvafixenalam-sirimutasavel-joxefosa-nujigolaj.pdfIn PDF document text
    • http://files.tracethemitten.com/uploads/1/3/1/1/131164202/fujugusobofi_buvevedukitip.pdfIn PDF document text
    • http://wogawu.whittaylorcomics.com/uploads/1/3/1/3/131383965/dinopigedo.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/1/0438/1717/3149/files/nenajaxolugolavajorola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6547/3184/files/26562695340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5811/9334/files/86302843199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9987/9576/files/505738218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8782/6854/files/tovawarume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6095/2229/files/english_words_meaning_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8802/7555/files/75780116977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/adobe_premiere_tutorials_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/rujusutetubonobupudur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8402/9845/files/functional_analysis_exercises_with_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/mathematical_modellingdrive.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 7

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_off00006b85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B85 5292 bytes
SHA-256: 4b5b96ed1c860d3ef96e1b412f2ca6fad62d33e2359b83e6dee8cb3348154a57
font_01_sfnt_off00007d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D85 11024 bytes
SHA-256: 078c99fb29624d1d5a00ea4c336c12b6a0e146d7f47baa99d9e71e53cbffaa25

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