Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba5226305e12131…

MALICIOUS

PDF

48.2 KB Created: 2020-08-21 00:30:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eccaa79d824f9f8a55c638fb818a430f SHA-1: 499a9b3262780ae0844784d2ecae912e4738551a SHA-256: 8ba5226305e12131d8814e17cf2195e0f8651ea3030e4492b1b220834db3e302
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=pkvy+online+form', is directly linked to known malicious redirector infrastructure. While no scripts were extracted, the structure and URL firings strongly suggest a phishing or malware delivery attempt.

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=pkvy+online+form In PDF document text
    • http://zaral.ims-spi.com/uploads/1/3/2/6/132696056/2005150.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/1/0440/7810/4728/files/45150337186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tinoled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9948/8410/files/dowetawodokugawelopeted.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/paweb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/tozadeburojenedel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3188/files/71842837443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/binoculars_icon_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/14305868295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/56076472578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3456/5025/files/attestation_urssaf_formation_professionnelle_continue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6117/4684/files/fegeliditeti.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 5

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_off00007697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7697 4752 bytes
SHA-256: 3a437e8b27b31861fb94c48ef6266b0b1301ca557dbafec74668573c50fc191a
font_01_sfnt_off000086b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B6 14668 bytes
SHA-256: 5c05ee3c3def8808e944050cbf27d59b3a2d48d8798490123914cc5cb8f9f987

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