Malicious PDF — malware analysis report

Static analysis result for SHA-256 742dae2c666fb940…

MALICIOUS

PDF

52.0 KB Created: 2020-08-16 22:52:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80e3e561319ea842da0975bb4eafdfbc SHA-1: 25ae7293a622b34785a6437d0233ab2cb2a61174 SHA-256: 742dae2c666fb940f5249079274bf8f344e73d7b00e7086fa047ae82f7fd4b57
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm designed to attract traffic. This suggests the primary goal is to redirect users to potentially harmful sites.

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=vector+canape+demo In PDF document text
    • http://files.allamericandogexpo.com/uploads/1/3/0/7/130738748/jovopowogumu_tetudepukiko_zorigexak_ruxedapopuju.pdfIn PDF document text
    • http://files.kelseymedeiros.com/uploads/1/3/2/6/132682676/198ed651381.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/1/0435/5152/2977/files/wikiriminekosefupavejer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8542/files/using_if_statements_in_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3368/8226/files/biochemistry_questions_bank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/24414581410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5428/4450/files/83125647660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0010/3073/files/gotec_leak_detection_spray_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7376/1433/files/cooking_with_herbs_and_spices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/seliralalus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1307/8168/files/dezig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/19266991965.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_off0000856b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856B 4976 bytes
SHA-256: e1b2c75cc24464a827c028abbca8e4790a8454445093e318cd7c0936740cc2e1
font_01_sfnt_off00009638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9638 14560 bytes
SHA-256: f40d638a246de3284ada2884a4e1ebf369ab60dc639c4fe538ad2eea82dcacd1

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