Malicious PDF — malware analysis report

Static analysis result for SHA-256 373e94181c88a7d6…

MALICIOUS

PDF

52.7 KB Created: 2020-08-08 12:50:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f55f6016cfcc89752a582151bde460f SHA-1: b3118659bf267c7ebd118276750507da0a501ae4 SHA-256: 373e94181c88a7d62171d90bbedf02a9cd4e3a7e552ef085474a08b370b9ab6b
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lure users with a search query for a technical guide. The file also hosts a large number of external PDF links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to increase visibility. No scripts were extracted, but the primary malicious activity appears to be the redirection to a potentially harmful site.

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=jboss+application+server+7+administration+and+configuration+guide+pdf In PDF document text
    • http://files.jerryjonesguitars.com/uploads/1/3/1/4/131408172/5095027.pdfIn PDF document text
    • http://files.dmcreativemedia.com/uploads/1/3/0/8/130813458/wejatavekiwonibide.pdfIn PDF document text
    • http://files.louisecandlish.com/uploads/1/3/2/6/132682826/rilajidorapakakiv.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/1/0431/0358/4409/files/40804502351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofusibosaduxigagixuvoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8022/8757/files/fundamental_building_technology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5123/4981/files/miller_welder_repair.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/61749419699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/19025816575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8624/1187/files/85922261344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3456/5025/files/806118907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3058/5250/files/59883585082.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_off00008256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8256 5744 bytes
SHA-256: 6164bd513befd9d34737af8b5f8a280a313ba3dbb11d5583f8827183659005ad
font_01_sfnt_off000095de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95DE 15204 bytes
SHA-256: de50c7619eb437e3fb1a26bdc2ca6194f586fd4d0b64f0a00d9dcc9f954ca252

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