Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a97b5a001a9fa32…

MALICIOUS

PDF

41.9 KB Created: 2020-08-27 17:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07ed1218d16832b813818c38f374f2af SHA-1: bfc3809d6dc545bcf1a8345a62911760996f198f SHA-256: 3a97b5a001a9fa32b65161d4202421769fa0701075fbb348cb7f2a67a448cba4
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used to create link farms for SEO manipulation or to distribute malicious content. One of the primary links, 'https://ttraff.ru/pify?keyword=liveability+ranking+report', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the intended lure. The ML classifier strongly supports the malicious nature of this PDF.

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=liveability+ranking+report In PDF document text
    • http://penali.abccolandscaping.com/uploads/1/3/0/9/130969054/9724831.pdfIn PDF document text
    • http://files.elainecairneyhomeopathy.com/uploads/1/3/0/8/130813972/8ffba3fa.pdfIn PDF document text
    • http://lebovu.mcwoodturnings.com/uploads/1/3/1/3/131380550/9233931.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4117/7248/files/69898270498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/sulevodepufazezowux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9753/9231/files/7679258848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5795/5494/files/android_emulator_ios_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7257/0012/files/5794058502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3402/files/betolivikararosesijejag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/redis-_cli_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3727/5813/files/70378400671.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A0 4904 bytes
SHA-256: 5301a9e8169686a27fad54ce3e1f14b898eeee20dd31db077dcd408c70a9dd7d
font_01_sfnt_off00006a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 10088 bytes
SHA-256: 38548edca1f15ba1b67a94b6d0aa79a087c1abd27b4e41771182346be566980a
font_02_sfnt_off00008cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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