Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9b7ff99c88fb218…

MALICIOUS

PDF

40.2 KB Created: 2020-08-05 06:30:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc57523ddb3f20d7e4e3a45fa854bd4d SHA-1: 6d3681120b60d11149795df9aa80840f4423fb00 SHA-256: d9b7ff99c88fb2188f3be0bb7ecde6ae520cec52039f428767934233abd9a5d4
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', disguised with a medical keyword. It also exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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=manejo+de+angina+de+pecho+pdf In PDF document text
    • http://files.jungeunleecreative.com/uploads/1/3/0/9/130969003/2466834.pdfIn PDF document text
    • http://files.jerryhilldesigns.com/uploads/1/3/1/6/131636916/79f9f4e61f69dee.pdfIn PDF document text
    • http://files.piperdavisbaseball.org/uploads/1/3/1/6/131636642/648d4.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/1/0427/6797/4556/files/68982481503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8694/6206/files/59119705955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6080/3237/files/the_best_simple_recipes_americas_test_kitchen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9588/3925/files/96302843525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/54266332551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/niwoxafefojifaruxalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/zogafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7659/1509/files/gupanokoxadaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7459/2668/files/berliner_platz_3_neu_intensivtrainer_lsungen_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8999/3636/files/77431152674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/bimow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/midotikonujeriruzopa.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_off00005ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 5192 bytes
SHA-256: b45cd7e06a4c3baf0038bb3d5535254f84aee55843162e98218db764ab5fe4d3
font_01_sfnt_off0000709a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709A 10512 bytes
SHA-256: 20e5933aade76c784675d76052d6a1db3c22cea5d9769e7d0a2c136a1dd56298

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