Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2e59f3eb3c1164…

MALICIOUS

PDF

43.4 KB Created: 2020-08-09 17:02:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d5cfe8dbbba825c802615036ee2ae56 SHA-1: 3a3e8c1a649a7d3b6fa03e06194d3941ae568d87 SHA-256: 7a2e59f3eb3c116403219f7229f2a575ef2324cadbd519ae3c4bea4dd8cfecd7
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a primary URL pointing to a redirector service. The document body, though heavily obfuscated, contains text related to tax declarations and a URL that is also present in the heuristics, suggesting a phishing lure. The presence of numerous embedded links, many pointing to benign Shopify URLs but also including suspicious ones, indicates an attempt to distribute malicious content or phish for credentials.

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.cc/pify?keyword=belastingaangifte+2020+belgie+pdf In PDF document text
    • http://files.letschangeourcity.org/uploads/1/3/1/0/131070051/walejurozibamunixizo.pdfIn PDF document text
    • http://files.karenfrock.com/uploads/1/3/0/7/130775707/5465000871.pdfIn PDF document text
    • http://files.seeyoudowntheroad.org/uploads/1/3/1/0/131070581/wuxadositukaw_potixunodilon_bojig_sawezodam.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/1/0436/0686/8126/files/blank_map_of_continents_and_oceans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6651/files/81910273646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/7753466707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3042/9346/files/nba_scoreboard_espn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2154/files/lowirejezatekuwugazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5011/4978/files/togowuzuvuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/nudomitafujen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/39956312050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/kenmore_he2_dryer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4386/4228/files/39394872235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/anatomy_of_cerebral_cortex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/kepanerebukirazawokijuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/74298841393.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_off000069fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FB 5576 bytes
SHA-256: 7b209b8a3407c9eb45717130284c488e79f0e495efe58182d250416b6825228b
font_01_sfnt_off00007d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D05 10456 bytes
SHA-256: 4d26025d68ca14cdb37cff11776c38e4c44831d5aa0bbf455fb4557b8013ee68

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