Malicious PDF — malware analysis report

Static analysis result for SHA-256 f10a4fffa18d615a…

MALICIOUS

PDF

43.2 KB Created: 2020-08-18 23:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 657cc00a293e7ffa29264acf0a8063df SHA-1: 0567755d228ec2f2ffa06b30c7bf7efda8c5e907 SHA-256: f10a4fffa18d615a2d5dbdbb0058045740edaced429bbf90107e82fac9e17adf
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.ru/pify?keyword=muse+exogenesis+piano+sheet+music`. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious infrastructure. The document body itself is heavily obfuscated and contains what appears to be a reference to the malicious URL.

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=muse+exogenesis+piano+sheet+music In PDF document text
    • http://files.fluxplay.co.uk/uploads/1/3/1/4/131438449/vufufekiwod.pdfIn PDF document text
    • http://files.smokepitfairytales.com/uploads/1/3/2/6/132695397/bc7047cce9ec.pdfIn PDF document text
    • http://files.spiralpathpilgrimages.com/uploads/1/3/0/8/130813827/savun.pdfIn PDF document text
    • http://files.rustywoods.com/uploads/1/3/0/9/130969118/e7190.pdfIn PDF document text
    • http://files.npwcaz.org/uploads/1/3/2/6/132681579/fisuwepokegetowe.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/1/0447/4486/7994/files/3125989651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5864/0534/files/lotirarewaweluno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6667/1782/files/gewodibokamigudax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/69291192757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5140/8799/files/27185254192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/nimobonemelixarukupuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugasodaliza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6449/0149/files/curriculum_vitae_format_sri_lanka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6250/files/another_example_synonym.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC1 5172 bytes
SHA-256: 37bd72d0a2c328b34c923c5d0f2d5074c2850acdfde11b3fbe57a25dd139f117
font_01_sfnt_off00006c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C41 11092 bytes
SHA-256: ee4fdd305165382b77b6e6c72cbeac18551f51d1653a31b488590e140cf40441
font_02_sfnt_off000091ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91AC 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.