Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e5cd5ffcf7e88fc…

MALICIOUS

PDF

57.7 KB Created: 2020-08-04 23:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c92fd470cb852a15c34c6c34866123ed SHA-1: f17488a4e28444da50abca62cc94bc18fc43d0e7 SHA-256: 9e5cd5ffcf7e88fc0a12f07d16bfe159c2fc232fa06c8fae66403060b049385f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com, which is also present in the document body. This indicates the document's primary purpose is to lure users to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous external links, suggesting a broader campaign to distribute malicious content. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

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=differentiation+chain+rule+questions+and+answers+pdf In PDF document text
    • http://files.downtownklamathfalls.org/uploads/1/3/2/6/132682802/moxizanaxepuve-gijasasepurit.pdfIn PDF document text
    • http://files.saltdancecompany.com/uploads/1/3/1/4/131438641/494423.pdfIn PDF document text
    • http://files.mechanicalstorms.com/uploads/1/3/1/6/131607075/2a2129.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/1/0428/6083/9079/files/82284924256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1773/files/divikobaxez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/piladumosoxasapisenegege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2849/5001/files/matlab_circle_plot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3331/0870/files/juresitutenimivovet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/nevuxolikipimoxowunoxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/31914036334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4681/4374/files/document_classes_latex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/77530490487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7912/files/12908465339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/94178229730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/43720935574.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 6

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_off000094cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94CD 5460 bytes
SHA-256: 88f9f10b92963100372cc9261b8dc2177b3acbea260aacae935b9146ea6f7910
font_01_sfnt_off0000a771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA771 16208 bytes
SHA-256: d1934627f3850c380f148bb57c837ff08ae1bc5291a627110064678addd397d8

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