Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6ddcfd0cf94d67…

MALICIOUS

PDF

43.4 KB Created: 2020-08-24 14:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec0593bd66191eddf6383e0c5f538022 SHA-1: 85ae1aab42b832eb7b9271d7450abea55982a324 SHA-256: ce6ddcfd0cf94d678b47511094860d0e9dc108223100c158ca823d0cb8c3aaf7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1566.002 Phishing: Spearphishing Link

The PDF contains numerous embedded links, with one identified as a malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=best+navigation+app+android+2018', which is flagged as a malicious redirector. The presence of a large number of external links, many pointing to Shopify domains, suggests a link farm or SEO manipulation tactic, potentially to distribute further malicious content.

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=best+navigation+app+android+2018 In PDF document text
    • http://files.you2masterclass.com/uploads/1/3/2/6/132682335/xinikiferem-soserekizibuv-lowaxafo.pdfIn PDF document text
    • http://files.southerncare.co.uk/uploads/1/3/1/4/131437625/f4a145f81f0d.pdfIn PDF document text
    • http://files.annikakovar.com/uploads/1/3/1/0/131070113/motasakelujefi.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/1/0435/7256/0031/files/90249277623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5970/8058/files/saluli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3275/6902/files/mojopijido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/ropabezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9671/files/konekezevata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5265/files/bidaxutopudovunikatikavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6485/2634/files/glossaire_maritime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9843/7784/files/kukewan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4392/8726/files/ribiboboredekopus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/gevevibozaromitijufesilek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4104/7206/files/23376917608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/8162/1664/files/5534538402.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 6

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_off00006aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACA 5724 bytes
SHA-256: 6b7c27b108924c7bb6b1d1937a0b4205cbb253bb5f4b14d895c12a93d64e4c82
font_01_sfnt_off00007e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E56 10060 bytes
SHA-256: eb780e05cb46d6e1d769de5701015331cb07d4ea849d3f486ce13773eed5b75e

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