Malicious PDF — malware analysis report

Static analysis result for SHA-256 127976016400930e…

MALICIOUS

PDF

38.4 KB Created: 2020-07-30 07:34:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff56a4095b8a849fb8aa8a3e3cac943b SHA-1: f13d7fb1a527a4c5c848598b5f1b48a61dac3f76 SHA-256: 127976016400930ed40827f0f9b3308e7f238a6c800c34945fc9790e75e4ff50
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links designed to create an SEO link farm, with a critical heuristic firing for a malicious redirector. The primary redirector URL is `https://ttraff.ru/pify?keyword=american+history+workbook+pdf`, which is likely used to phish users under the guise of providing a free download. No scripts were extracted from this sample, but the structure and heuristics strongly indicate a malicious redirection 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.ru/pify?keyword=american+history+workbook+pdf In PDF document text
    • http://files.esoterikosparanormal.com/uploads/1/3/1/4/131406806/zesitu.pdfIn PDF document text
    • http://files.citadeltacticalandoutdoors.com/uploads/1/3/0/9/130969166/komorivig_tolororofa_poropezeza_nolawisitum.pdfIn PDF document text
    • http://files.kalenit.com/uploads/1/3/2/8/132815882/049f05616ad.pdfIn PDF document text
    • http://files.gentle-giant-meadows-ranch.com/uploads/1/3/1/3/131382808/wusolunirejofu.pdfIn PDF document text
    • http://files.phinge.com/uploads/1/3/0/7/130775384/8761084.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/1/0427/3537/0407/files/90842564668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6254/1982/files/54218068049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2274/3712/files/gobonikozesemineniw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1217/7572/files/41839452358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5555/3443/files/2705676700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7972/8281/files/36602348409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4726/3131/files/xinojumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1520/8098/files/nutiwakezufib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/97637239063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/repopumusamamipaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/15152026676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/daxamepepinopiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6310/8003/files/52988690329.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 4

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_off000058ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CE 5536 bytes
SHA-256: c302f3b5b6fef0d0aa25b1e3a9aa045885ebcd7a3dcb6f41de70b20cbbd512a3
font_01_sfnt_off00006b6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6F 9584 bytes
SHA-256: 306d746f132645cfd07d74a5410765b5ef6be32631d91a6fa22ae2cc0411cf28

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