Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce487b8014f08cd5…

MALICIOUS

PDF

41.1 KB Created: 2020-08-03 09:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ecf43fc116a9415116d199e61853a5a4 SHA-1: 34151237de61782a7b668c5838a74c8410991bb2 SHA-256: ce487b8014f08cd5814eba5efae4e3ef7580e072b778bb1500e7ed3a24e7ca75
194 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier as malicious. It contains a large number of embedded links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body appears to be corrupted or obfuscated, but the presence of numerous external links suggests a link farm or redirection strategy. No scripts were extracted from this sample.

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=corgi+tire+machines In PDF document text
    • http://files.melbournepsychologyandcounselling.com.au/uploads/1/3/2/8/132815787/4274226.pdfIn PDF document text
    • http://files.essenceofbeautydublin.com/uploads/1/3/1/6/131637057/9362341.pdfIn PDF document text
    • http://files.tanasi-sharkfinguitarpicks.com/uploads/1/3/1/6/131606550/fokiwute_gixijor_vizope_vaforusunu.pdfIn PDF document text
    • http://files.busybeesclifford.com/uploads/1/3/1/4/131453302/suwogileluv.pdfIn PDF document text
    • http://files.ribreastfeeding.org/uploads/1/3/1/4/131437633/pupoz.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/1/0429/6926/8373/files/rakedumukixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/12825418705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8564/4454/files/wuwadugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8491/4583/files/nalomaxaraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/xovix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2321/9363/files/vurikovotazivukutuzedonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/jijozera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4189/1238/files/1596525419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2684/8661/files/354815852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/45315666286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/68472345148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/87828021090.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_off00006176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6176 5088 bytes
SHA-256: 5dd94defc3f46e410c8e95f70c1c68463eb20a8577a249ba5307c2933d322a3e
font_01_sfnt_off00007296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7296 10896 bytes
SHA-256: c5b22bf672314e470121ca5fad27d812350a3711e88c97a57f54ea630793d2b2

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