Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a3513362897eb8d…

MALICIOUS

PDF

61.6 KB Created: 2020-08-06 02:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3b1b9691f752702707b7acdbeeb5b56 SHA-1: b42ffb58abb58043360aee2802c9ccf17f22f499 SHA-256: 7a3513362897eb8db477a97545644113f666eae3ece666fc9689490b72ec8f25
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to suspicious infrastructure like ttraff.com. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector findings. This suggests the PDF is designed to redirect users to potentially harmful websites, likely for phishing or malware distribution.

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=technical+architecture+document+pdf In PDF document text
    • http://files.kvwilsonauthor.ca/uploads/1/3/2/7/132710795/5919531.pdfIn PDF document text
    • http://fisatine.nazarenechurchlurgan.com/uploads/1/3/2/6/132681579/dezin.pdfIn PDF document text
    • http://files.sierrawaller.com/uploads/1/3/0/9/130969503/2d681e32a27c4c.pdfIn PDF document text
    • http://files.customcontractinginc.com/uploads/1/3/0/8/130813975/roxoxiwag.pdfIn PDF document text
    • http://files.erathmealsonwheels.org/uploads/1/3/1/0/131070469/b0445b28a94d13.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/1/0435/9625/1304/files/74366072861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/fovebogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/86472256619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1430/6467/files/arabic_to_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5099/0753/files/juwudafeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3776/0408/files/21455173599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/kerifirekejazaxamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/rotitelanamegoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6682/files/gtd_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5505/5002/files/68567797499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/28881952406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7266/0390/files/74816264499.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_off0000b478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB478 5164 bytes
SHA-256: b55cc08e735622ac035d37101cbd368ce6b9cbd20e3fd0b6050fd5915491faee
font_01_sfnt_off0000c5de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DE 10356 bytes
SHA-256: 82cdadca19410cd39ce6b476abc91f0cedb3eae784a5d1960e94a0b1edd5750a

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