Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a483192fd6f53e7…

MALICIOUS

PDF

48.3 KB Created: 2020-07-31 04:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9bb194f805821746dc378cc5a125a32 SHA-1: a329b715d258b6469a85ba77a58ae214772f5e1b SHA-256: 0a483192fd6f53e76df211e6cb53ae50c47583f398aef6558f92a26a81b29b6f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as legitimate downloads but redirect to a malicious domain, ttraff.ru. This is indicative of a phishing or malware distribution scheme, likely using SEO tactics to attract victims. 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=estimation+and+costing+in+civil+engineering+notes+pdf In PDF document text
    • http://files.inspired2wellbeing.com/uploads/1/3/1/4/131437865/ad8a97927ff4.pdfIn PDF document text
    • http://files.valleyriverarts.com/uploads/1/3/1/6/131636758/6f11883de408e84.pdfIn PDF document text
    • http://files.bellecityvet.com/uploads/1/3/1/4/131453724/jolavopusuxu_laputisa_popujekede.pdfIn PDF document text
    • http://files.oliviawoolf.com/uploads/1/3/1/4/131407572/8964719.pdfIn PDF document text
    • http://files.dralexischesney.com/uploads/1/3/1/3/131381640/tawipifav-jepemenevipor.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/1/0433/4993/4229/files/mapozadinol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/xojixosib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8086/8255/files/fifulorafusezit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/lafinuminigofilorupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/87161808305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/27006202829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/635577497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/8026935992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/nefosurixus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0840/9250/files/bozegedutisexamupez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/68325093427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8434/0630/files/lugupesorigoriripoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4178/1920/files/12870636130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/nubagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/tumasegilaxexa.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9C 5280 bytes
SHA-256: cad0d81ecfed46a09857b4ddeb76e0ee2649d934f697e6fcba7578a5184158b0
font_01_sfnt_off00009075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9075 10284 bytes
SHA-256: c2ac038df026c9132fddc46fa0c8e011827796be4e193472c56f42d1df1afa9e