Malicious PDF — malware analysis report

Static analysis result for SHA-256 314db970df66fd87…

MALICIOUS

PDF

40.5 KB Created: 2020-08-22 11:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73c1f07b49e5a84bfa7f3a3b0dab8857 SHA-1: 162a86895a436d52ac59a42a706076d3240df718 SHA-256: 314db970df66fd87785448d63258ab3e832ebc1b7dedb225ef52e8fb7845f692
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=facebook+analytics+android+integration'. It also exhibits characteristics of a PDF link farm, embedding numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify-hosted PDF links, reinforcing the lure. The primary intent appears to be directing users to malicious infrastructure.

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.ru/pify?keyword=facebook+analytics+android+integration In PDF document text
    • http://ziveli.fwsudbury.org/uploads/1/3/0/7/130738973/pogokitop.pdfIn PDF document text
    • http://wejebere.juliahobdayphotography.com/uploads/1/3/0/7/130775195/8387d1c1f5e0.pdfIn PDF document text
    • http://files.fnglapalmbeach.com/uploads/1/3/1/1/131164033/pewexi.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/1/0431/4506/8699/files/nofunexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1653/4690/files/67140451082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/sekakezokovazomuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6812/9431/files/tuwifuzun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/biochemistry_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8801/files/kewivaxekarivokikirigawib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4772/1892/files/85355483258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/4280424599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8634/8450/files/37315846093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/tukotajij.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 1

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_off00005f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F23 5368 bytes
SHA-256: b8007c76b1b3600c6c5836755790e63ff19403bbbd4bff0fbb727119572d10f0
font_01_sfnt_off00007173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7173 10412 bytes
SHA-256: 5e1ca06caf5d5c638e689958003f811d5e78b18e9f0bdc854aefdcb2a973b5b6

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