Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a449418ca1e629f…

MALICIOUS

PDF

38.3 KB Created: 2020-08-07 21:11:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 553d79de30368fc1e537d858a1780ca8 SHA-1: 5e37a42f250a31805b0aa13a8b24075814c46a00 SHA-256: 3a449418ca1e629f7d80e042653b57c406457551d19c8048ac89d3d7aa1629ea
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.ru/wb?keyword=prophetic%20faith%20of%20our%20fathers%20vol%202%20pdf`. This indicates the document is designed to lure users into clicking malicious links, 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.ru/wb?keyword=prophetic%20faith%20of%20our%20fathers%20vol%202%20pdf In PDF document text
    • http://files.lucysantosgreen.com/uploads/1/3/0/8/130874567/nabokimumogo.pdfIn PDF document text
    • http://files.fsk-midpen.com/uploads/1/3/2/7/132712006/maper.pdfIn PDF document text
    • http://files.jovanmays.com/uploads/1/3/0/8/130814717/nefijegubak.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/1/0430/4994/3202/files/juvufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8996/9820/files/aarp_life_insurance_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9369/5391/files/89554377619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7851/6885/files/5943983948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/2001_chevy_monte_carlo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9447/2856/files/padukukiwavudude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/94135242627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/pobifuxab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3577/0532/files/14595320461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2552/5918/files/margaret_atwood_the_testaments_download.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_off00005797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5797 5436 bytes
SHA-256: c6fc49103d6024b1ef2ecb967af277992ceaf2d64661a8409a568a81c56fa555
font_01_sfnt_off00006a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A15 10164 bytes
SHA-256: fc911ac1e75f7fcc5bcdace2b7f287258dcbbb5932d23abeaace26178a1b3767

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