Malicious PDF — malware analysis report

Static analysis result for SHA-256 026c8f80a36339a7…

MALICIOUS

PDF

47.4 KB Created: 2020-07-30 15:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c427a749d3887d24e4f474ec636f70e SHA-1: 1269980d8b44360af944cf7070d0db0df4822c4d SHA-256: 026c8f80a36339a711dc2c5c34b5fefbcf100143be6d0aadd2e05a1133da8d43
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to legal documents. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to a phishing site or download further malware.

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/wb?keyword=codigo%20penal%20de%20el%20salvador%202018%20pdf In PDF document text
    • http://files.jamestanksley.com/uploads/1/3/0/7/130739379/3208031.pdfIn PDF document text
    • http://files.zenfreshcleaning.com/uploads/1/3/0/7/130775698/6084297.pdfIn PDF document text
    • http://files.apolloartists.net/uploads/1/3/2/6/132681851/3866484.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/1/0431/3425/5265/files/84363613919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/78822167479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/28709670971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5341/files/darezawinagunofejarexogur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/76641875135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0712/3357/files/58933366707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/vumuseselofixawoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/5401742958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4885/files/50109387717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9800/3874/files/1856657933.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_off000077a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A2 5520 bytes
SHA-256: ce5c7d07afd570d56218ff942c35156dcd6f20a00d583df70f1ca155841a8dbf
font_01_sfnt_off00008a79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A79 11472 bytes
SHA-256: 0197c300983ed307cac97acc8d6875e98eed7c4d4112a49184085e103158ed6b

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