Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c026098c0d88ad…

MALICIOUS

PDF

44.5 KB Created: 2020-08-04 21:36:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c44d9238abdf69474cb25ff04bfdb6ee SHA-1: 50da46487c4f0459e4872b315b6a3013eb86ece6 SHA-256: d8c026098c0d88adb0a151ea98bfc100cda40aee859e87d143164db7cd52c0d4
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to shopify.com PDFs, but the primary link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wb?keyword=pca%20training%20manual%20virginia', suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious.

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/wb?keyword=pca%20training%20manual%20virginia In PDF document text
    • http://files.hhollisapply.com/uploads/1/3/0/7/130739398/jatuj.pdfIn PDF document text
    • http://files.asset360surplus.com/uploads/1/3/1/6/131607075/difasizezo-waxizivesawod-kidodapefawa-dimoke.pdfIn PDF document text
    • http://files.citywestetns.ie/uploads/1/3/1/4/131406086/5286952.pdfIn PDF document text
    • http://files.theces.org/uploads/1/3/2/6/132695663/5887135.pdfIn PDF document text
    • http://files.bostwickcookieco.com/uploads/1/3/1/0/131071037/nexaxukelo.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/1/0433/0687/7080/files/12909571685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/lapufakof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7270/7990/files/vozaperunokenerobat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9821/9420/files/xasimuzefemubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2197/1104/files/brain_integration_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/duriro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2022/1596/files/xbox_one_license_transfer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1744/4264/files/10071834900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/zemorezageniriwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/2019626445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/8997/files/bijanotodatut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/92097968547.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_off000067ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AD 5000 bytes
SHA-256: 95adf7e8b8149c302f6e49acbf587a66f12b633fbb2e49aaba715374924b9cfa
font_01_sfnt_off000078a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78A5 14200 bytes
SHA-256: 708f4f96bf173bd8225d39e46390a8890b99a93da7b2903b5961b6b99c935a09

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