Malicious PDF — malware analysis report

Static analysis result for SHA-256 08dac79cf91fe6dc…

MALICIOUS

PDF

42.5 KB Created: 2020-08-06 00:43:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d4163d276a0b86616114d4429e4a8ed SHA-1: 3d014e05ac89697e3179f4485113f70845499201 SHA-256: 08dac79cf91fe6dcedc38d87621ee969fc49ade908e64e2e30155791c093671b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to a redirector at 'ttraff.ru' with a keyword suggesting a lure for inserting PDF files into Excel. This indicates a likely phishing or SEO poisoning campaign. 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=insert+pdf+file+in+excel+sheet In PDF document text
    • http://files.doodadsandfandangles.com/uploads/1/3/2/6/132680901/ronifawodizod_setupuvosukuf_wewofokodefeju.pdfIn PDF document text
    • http://files.dunollycottage.com/uploads/1/3/1/4/131438234/26e14.pdfIn PDF document text
    • http://files.jtdudrow.com/uploads/1/3/1/3/131384436/8539154.pdfIn PDF document text
    • http://files.toyourjoyaromas.com/uploads/1/3/0/8/130813357/1809611.pdfIn PDF document text
    • http://files.littlecreekneedleworks.com/uploads/1/3/0/9/130969710/9585647.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/1/0436/9963/4328/files/16901074687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75555741983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2598/8757/files/63949237727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7612/2779/files/star_trek_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/lerofilipewix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/98026592884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/30049226491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/52686191445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/mamexawobapigevopad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/24045728586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/64551238319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/36934220756.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_off00006a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A37 5036 bytes
SHA-256: 0b4299af46afa6ba1b5a42dc2a66fffaf010e45d15c92a25ec632a60b54e63a5
font_01_sfnt_off00007b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5E 9828 bytes
SHA-256: 6d76275730217294153b0c7d3682d9a35c02904e40240e08e0bb0e408b0daa34

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