Malicious PDF — malware analysis report

Static analysis result for SHA-256 a490f6fa5b902d27…

MALICIOUS

PDF

36.0 KB Created: 2020-08-08 00:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8174e9f635259ee441c216069ee02a37 SHA-1: 7c8c5dc78dec3060835e18addd1906610df7ef99 SHA-256: a490f6fa5b902d27cd37aff5a4e06befb84b0be4ffc42060da0d6064aff821d5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=bodybuilding+workout+photos+pdf'. This suggests the document is designed to redirect users to malicious sites under the guise of providing bodybuilding workout photos.

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=bodybuilding+workout+photos+pdf In PDF document text
    • http://files.northgeorgiacern.org/uploads/1/3/1/3/131378932/2059239.pdfIn PDF document text
    • http://files.trickdogu.com/uploads/1/3/1/4/131437474/xefolawikig.pdfIn PDF document text
    • http://files.shsbusinessclass.com/uploads/1/3/0/9/130969003/xowasa-sanovefokeweja-sofak-sesarejikupuku.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/1/0430/3529/5905/files/29011702032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5017/1554/files/wikovelupetotamofotasexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0231/files/avionics_technology_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/coriolis_acceleration_derivation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2783/9641/files/41401049605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/koziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/charat_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3864/5151/files/82565664075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4854/1087/files/arinc_429_specification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/42593969101.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_off00004df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DF9 5540 bytes
SHA-256: ec900252a447f2eaf0426d1b6ab93b59b68d54ec36160f2da980a50be94d813c
font_01_sfnt_off000060ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60EA 10136 bytes
SHA-256: b4204c5f6e472a74165daaafc83e182e9cd4e0a1416a10338beca3cc325d37ff

Open this report in the interactive analyzer, or submit your own file for analysis.