Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed8e6288b92b79df…

MALICIOUS

PDF

48.3 KB Created: 2020-08-09 17:34:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17d4920048beba41683b70ea077e409e SHA-1: 4465df6a30cccb433938fd2c94928d1370bc4594 SHA-256: ed8e6288b92b79df1689cbda0c69d30f969cc187c6fca680e1338efd7f1528a7
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with the primary malicious link identified as 'https://ttraff.ru/pify?keyword=complete+the+square+vertex+form+pdf'. This indicates a link farm or redirector strategy to lead users to potentially harmful content. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, and the document body is heavily obfuscated.

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=complete+the+square+vertex+form+pdf In PDF document text
    • http://files.jancancan.com/uploads/1/3/1/4/131406413/sosazidisajawaj-ledosol-vaxodavuv-ziwobedomanefon.pdfIn PDF document text
    • http://ruremufox.hillvalleyfarmdairygoats.com/uploads/1/3/0/8/130814124/230571.pdfIn PDF document text
    • http://xobewiso.miamigardensflcarpetcleaning.com/uploads/1/3/1/4/131437657/wemub.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/1/0437/6032/0663/files/baixar_livro_capites_de_areia_em_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1866/files/pic_assembly_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2565/3160/files/coronary_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/19960924364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0441/8459/files/senipelovojobif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2765/9932/files/the_aeneid_latin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1995/9454/files/cambridge_igcse_economics_workbook_answers_susan_grant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5171/2666/files/9438859350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/chaos_rune_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/lufobepopidolewikasidede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/4._3_vortec_engine_diagram_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/nunerajiferiben.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_off0000697f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697F 5284 bytes
SHA-256: 18589d083f0225fbe51725f230afa514140c60acf0d1a1f40f803a248886576d
font_01_sfnt_off00007b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B83 13340 bytes
SHA-256: 792a3ff35327eacd70e488d6db07df00c8690a544eb3c5c53724c392d21111c8
font_02_sfnt_off0000a64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA64B 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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