Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7bb13c8f46472f4…

MALICIOUS

PDF

48.1 KB Created: 2020-08-20 03:01:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58a9c3f8fdf7ae549eeb86985aca7043 SHA-1: 2bb66ca32b9a9698c90086b6c15f7f8207e52894 SHA-256: f7bb13c8f46472f4ca4e11dc4189d575fc51387ac1535001a01212a9413076fb
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains the same URL, suggesting it's the primary lure. The PDF also contains a large number of external links, many pointing to Shopify domains, which is indicative of a link farm. The primary malicious URL is used to redirect users, likely to a phishing or malware distribution site.

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.com/pify?keyword=avg+antivirus+software+free++for+laptop In PDF document text
    • http://xixex.claireannagarand.com/uploads/1/3/1/6/131637136/1978327.pdfIn PDF document text
    • http://pijin.brijcommunity.org/uploads/1/3/2/3/132303354/mixawav_lunikufazujakoz_nobikok_segipegaxesol.pdfIn PDF document text
    • http://files.gretchenhelmke.com/uploads/1/3/1/3/131398108/lugem_leposu.pdfIn PDF document text
    • http://lovul.lotusranch-homes.com/uploads/1/3/1/4/131454215/savupuvesun-jorunazan-muwamanija.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/1/0434/4607/5554/files/79051011209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/famofajaken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0326/1606/files/cumulative_frequency_distribution_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3415/5928/files/54686420859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/86739724342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/59664201980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6717/8134/files/5759501109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8574/9654/files/14262750080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/kopap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2973/3282/files/renal_dialysis_procedure.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_off00007d09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D09 5208 bytes
SHA-256: aca18f37aa159c08280039f5fc3b1b331c38ac1124eddad223ab49a954e0c995
font_01_sfnt_off00008ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF3 10704 bytes
SHA-256: 40a5c20e6ab5427f2c8d91668fb3c0f543753d783406c3cbe6ce1a9ed0103eb2

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