Malicious PDF — malware analysis report

Static analysis result for SHA-256 082516ab9f3b4748…

MALICIOUS

PDF

48.1 KB Created: 2020-08-20 09:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06366c00f0f344cb766623536764d9c5 SHA-1: 93c79f4d3e7c1c03d3e172091181ecb9e7e507c9 SHA-256: 082516ab9f3b4748287b61bf13c27868930657d6cedf9d4cdff0bb22b568d7a6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL, 'https://ttraff.ru/pify?keyword=ostrich+farming+manual+pdf', is identified as a redirector to potentially malicious infrastructure. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure for users seeking a manual.

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=ostrich+farming+manual+pdf In PDF document text
    • http://kimapaxup.bbt-livonia.com/uploads/1/3/2/3/132303354/18d0dca34.pdfIn PDF document text
    • http://fezefo.roamingbrit.com/uploads/1/3/0/7/130739919/sevesusesarofuxovu.pdfIn PDF document text
    • http://nesubo.cmcautobody.com/uploads/1/3/0/7/130775518/niluju_zamini_lexuxuropi_wonuneni.pdfIn PDF document text
    • http://files.bentonareaedc.com/uploads/1/3/0/7/130739532/mewik-mafuvimavod.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/1/0431/8606/1480/files/gobikozufafejilerajakidir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/41710057193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9942/files/bowknot_design_platform_espadrille_wedge_sandals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7514/0761/files/effects_of_greenland_ice_sheet_melting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0982/7231/files/86593616626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2452/1128/files/8995819743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9170/8328/files/eidolon_hunting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9584/files/lomiwesojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/victorious_full_episodes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/68543306619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3775/1453/files/guild_wars_nightfall.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/destinos_an_introduction_to_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/weather_anatomia_microscopica.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_off00007a36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A36 5596 bytes
SHA-256: 5c7ec052acea96c1305e9e42f1cd9f2d085f52c167cfe937c99085f09e82c76a
font_01_sfnt_off00008d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D18 10676 bytes
SHA-256: 72d802eee299022db4f3fc30c0e040c27ccfeb94becd810c16cda8d98bdbc6d6

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