Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d2cb022ce70d91…

MALICIOUS

PDF

50.3 KB Created: 2020-08-11 23:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b811de5e5195e05881b2617132bafd59 SHA-1: 555314b06cff1a6110ab7c71baf5ad9a2db05d94 SHA-256: c0d2cb022ce70d9146c258a4c13a41310e81ee6be5357a142eb01197bc0b589f
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One critical heuristic indicates a redirector link to 'ttraff.ru', suggesting a malicious redirection chain. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be the malicious redirection via the embedded links.

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=boundaries+handout+pdf In PDF document text
    • http://rukewimot.bronzedoklahoma.com/uploads/1/3/1/4/131407995/9803463.pdfIn PDF document text
    • http://files.nebraskatraileroutlet.com/uploads/1/3/1/4/131483719/5930116.pdfIn PDF document text
    • http://gufewus.thelakemermaidempire.com/uploads/1/3/1/4/131406390/nopibunupuvo-tumirobabodo-xovifosi-fogefok.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/1/0437/3217/2965/files/suxewad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7573/1607/files/golubagifojosezug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9974/1596/files/45022246959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2333/4565/files/lodijotobobezoxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/class_12th_entrepreneurship.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/clerks_private_award.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8127/4278/files/9782709903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/97121884447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/tizowapox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1050/6404/files/fixakupupov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/zoditigenokiwakiduka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1747/8044/files/bridges_in_mathematics_grade_5_home_connections.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 3

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_off000087c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C0 5144 bytes
SHA-256: 18ed2014b9b0ec26c987cea4cb96a18770327dca414a566c41adac3e088604d1
font_01_sfnt_off00009941.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9941 10316 bytes
SHA-256: 3bb76108175e381a1f4cca3138a5dd8972297b0c217b27b879419a48e852f522

Open this report in the interactive analyzer, or submit your own file for analysis.