Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c1fa30ff7965199…

MALICIOUS

PDF

50.0 KB Created: 2020-07-28 10:29:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12377f12ab11e7ff4c01f87a29ba11ef SHA-1: 61e351dcb30a08c612fe58a4019fb8bcda94f091 SHA-256: 8c1fa30ff79651993e3ae411fbc5546744d8cb0539796a22b6d47e42e62adae2
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is ttraff.com, which is used to redirect the user to further malicious content, likely a payload download.

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=avid+installer.+msi In PDF document text
    • http://files.perfectliarsclub.com/uploads/1/3/1/4/131483266/572195.pdfIn PDF document text
    • http://files.trappmediations.com/uploads/1/3/1/0/131070317/vamafivatipide.pdfIn PDF document text
    • http://files.transformation-conversation.com/uploads/1/3/2/7/132712050/juwibetubolujopara.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/1/0429/3437/0470/files/zofirazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/84995915354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8740/4968/files/mojekuduxagaxuvaliki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7141/4173/files/juramer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/nimenit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8685/5844/files/nusemakinenuvazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/47426715615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3279/6574/files/73193941099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6671/2479/files/82651494270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/13735782778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9447/2856/files/80646670641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0654/9406/files/16556241903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/duvunojudazorepawopukib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/17649452083.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_off00007eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB9 4728 bytes
SHA-256: 63eeef8109639bf7bbcf281a6563ef2f96012aac8aca2ec342f491e178fa31d1
font_01_sfnt_off00008ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA3 13908 bytes
SHA-256: 574f17b979aaec3f242dc8be3bc8178bed7ba32fab77725987be49c5ace83f73

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