Malicious PDF — malware analysis report

Static analysis result for SHA-256 590d65fbf1579276…

MALICIOUS

PDF

43.2 KB Created: 2020-08-01 06:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef69de568a65f3b3cdc9925449b18435 SHA-1: 4cb4cf4855df05632e5609adc9958faa2f421912 SHA-256: 590d65fbf15792762ac90eaef87ee957c93b7f68a61a8539b81312a933a3efff
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a phishing or malware download site. The document body and embedded links suggest a lure related to 'Briggs and Stratton 550 series' to entice clicks. The presence of a link farm further indicates a malicious intent to distribute 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.cc/pify?keyword=briggs+and+stratton+550+series In PDF document text
    • http://files.pinsnpotions.com.au/uploads/1/3/0/7/130739837/a232f54a1.pdfIn PDF document text
    • http://files.dirksalomon.de/uploads/1/3/1/4/131406437/degesoti.pdfIn PDF document text
    • http://files.waitakaruruschool.com/uploads/1/3/1/4/131408572/4338738.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/kolop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7616/5536/files/91707698031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/85306299724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8076/0990/files/sigeraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6668/6617/files/14442652378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1121/0398/files/kunafoxoketuzokixana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8026/0511/files/bunokibiwefare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/36261408087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/sufunowexuruvamobidugis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/69821852235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/40890326631.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2A 5064 bytes
SHA-256: 9619358af1ebba54f61542e4800a89f99c017965f9148fce9040069e9ac5b416
font_01_sfnt_off00006c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C65 11784 bytes
SHA-256: 8d4a097acd5487cac2e7c1849ad7624b6798373b7511681b836873ad6b17201f
font_02_sfnt_off000091e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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