Malicious PDF — malware analysis report

Static analysis result for SHA-256 27adc6738b07e251…

MALICIOUS

PDF

62.2 KB Created: 2020-07-31 11:34:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6b51af79d1bf95162d62a2ae792605f SHA-1: 30a5db3fd7122d879f008ddcb50d37feab0b21e6 SHA-256: 27adc6738b07e2516686093f861c9efef98e711416113035c58d24e953b5f435
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. This indicates an attempt to lure the user to a malicious site. The PDF also contains a link farm, suggesting SEO manipulation to increase visibility of malicious content. The ML classifier strongly flagged this PDF as malicious.

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=african+traditional+religion+pdf In PDF document text
    • http://files.joanieandjennib.com/uploads/1/3/0/8/130814205/4651537.pdfIn PDF document text
    • http://files.lauragilliom.com/uploads/1/3/1/4/131452942/502581.pdfIn PDF document text
    • http://files.littleworldeq.com/uploads/1/3/1/3/131384468/vometawafe-pokujewiruxos.pdfIn PDF document text
    • http://files.superminiatures.net/uploads/1/3/1/3/131380288/jojuru_kabijazazazu.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/1/0431/0482/9589/files/tutozototiwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/18030398958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6714/5366/files/78176476716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6877/4814/files/nukod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3797/2897/files/27855485081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/26848593367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/37295374829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9180/2777/files/tizamewakanuzumotozidar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0786/8060/files/sakozuvamizowojimevakusam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/jesagoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/4428889347.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_off0000b7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7FE 4924 bytes
SHA-256: b6f5e26cdb752fff219242fa30a7dda8aa632f3827f2397cc14416d564012a13
font_01_sfnt_off0000c8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B6 10088 bytes
SHA-256: 4f00492201543eabdf08785c85a4c79602317746a6e880022726476ad002df46

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