Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08bb38548e25210…

MALICIOUS

PDF

35.7 KB Created: 2020-08-20 13:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3f6bd12401f624cd15082e9a63eba0a SHA-1: 4d1c56c16863fc46acf76fc908f97b425db0fae2 SHA-256: e08bb38548e252103349b5c91c4f920a6f5986bf36a93907a64407df6ae66e3f
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The document body contains numerous embedded URLs, including a suspicious link to 'ttraff.com' which is known for redirecting to malicious content. The presence of a large number of external PDF links, many hosted on Shopify, suggests an attempt at SEO manipulation or a large-scale phishing campaign.

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.com/pify?keyword=gurteen+jacket+size+guide In PDF document text
    • http://files.ocwpublishing.com/uploads/1/3/0/8/130873810/ca10de.pdfIn PDF document text
    • http://files.eveliinasuonto.com/uploads/1/3/0/7/130776167/7085903.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/1/0428/0595/2671/files/jufazixesovevawus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/56700937912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/5e_ranged_attack_in_melee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/tonosarevitizulodasaxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2704/6298/files/zelaxusafomijoloxugesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4486/7994/files/suikoden_3_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/2005_yamaha_v_star_650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5611/0487/files/33047481060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/how_do_i_open_disk_utility.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/lokazuli.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 2

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_off00004d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D0E 5296 bytes
SHA-256: bf473f1ad2bbeb0ec095d80510ba795c85cf8aa04204b42ee72231b83b03ead0
font_01_sfnt_off00005f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F35 10212 bytes
SHA-256: b18086173b5e7c0762b33fe259dd42a60fe716ef4424218c545094ba40f68d79

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