Malicious PDF — malware analysis report

Static analysis result for SHA-256 7052da3772e27337…

MALICIOUS

PDF

51.8 KB Created: 2020-08-21 21:53:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ec8231f9d7d0d3c20a25908d5de14d2 SHA-1: 5fec9bb0a41ec5047ebbc1baa0d1ec40d2aabad5 SHA-256: 7052da3772e2733743a74029f26bbcff2046cbf3a70bffa7b8a594b516ce0d6b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to redirector infrastructure like 'ttraff.com'. This suggests a link farm or phishing lure designed to funnel users to malicious sites. The ML classifier also strongly indicated maliciousness.

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=houdong+guided+missile+boat In PDF document text
    • http://mipudel.cogsuite.net/uploads/1/3/0/7/130739275/1286e9.pdfIn PDF document text
    • http://kowal.wjeclatinresources.com/uploads/1/3/0/8/130813395/a1dc0594df991.pdfIn PDF document text
    • http://files.phirediamond.com/uploads/1/3/0/7/130738712/suvetegudukoja.pdfIn PDF document text
    • http://files.metalempireproductions.com/uploads/1/3/1/6/131606688/485f30f.pdfIn PDF document text
    • http://kolelusuj.sigmachapter.org/uploads/1/3/1/4/131453540/jonojod-givufuxetamo.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/1/0429/4498/7292/files/integral_calculus_for_gate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9815/9769/files/1359074478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2824/5654/files/uniformly_continuous_function_is_bounded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3579/5354/files/40348087498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/blank_calendar_template_september_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/business_analysis_reporting_tools.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/gl_to_sd_card.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7097/5128/files/xubatebilimizekexixiguzit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/riesgo_financiero_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/wurazivofikezolukux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/cations_and_anions_test.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6437 11908 bytes
SHA-256: edb31f4fb241825d6a09873797b26e0ea48825c449a2c64762e76c81312f7909
font_01_sfnt_off00008af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF1 5148 bytes
SHA-256: b2b874604eab35c250fdfc1154fe872357d6e1c7a37abda1c14110fc9d03a6db
font_02_sfnt_off00009c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C5D 11104 bytes
SHA-256: e8280c9d8e8ad4755b10351f05c13075eaa5d346ca3322fbfcb04f434e2b6b58

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