Malicious PDF — malware analysis report

Static analysis result for SHA-256 582a5f328effbc9a…

MALICIOUS

PDF

40.0 KB Created: 2020-08-07 04:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ccc88153194d037559c7b0653ab0d980 SHA-1: 11306afd000fe1d551fa46a177cb01b52b7b8a83 SHA-256: 582a5f328effbc9a28f336f9695da102d3449e5a0424b2e810cb948464208b17
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm designed to attract search engine traffic and distribute malicious content. No scripts were extracted from this sample.

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=agenda+europa+2020+pdf In PDF document text
    • http://files.bowleyconsult.com/uploads/1/3/1/4/131437276/8a512a46aa4b.pdfIn PDF document text
    • http://files.mrgscience.com/uploads/1/3/1/3/131382274/zadugekum_makadiwitif.pdfIn PDF document text
    • http://files.neverthelessshecomposed.org/uploads/1/3/2/6/132695472/c3b3f09a.pdfIn PDF document text
    • http://medutenuv.tcrc563.net/uploads/1/3/1/6/131636612/mifadolowo.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/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/poultry_business_plan_in_kenya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5395/5742/files/ganujopoxawuwosasasekak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9543/2099/files/ielts_academic_reading_practice_test_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6820/9814/files/phases_of_meiosis_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/93746878839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/24161536869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9535/9637/files/jelilokamigopokeneja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/oakland_a_s_schedule_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/84364744667.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_off00005eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAE 5264 bytes
SHA-256: 23ca3f8693c0eab571ffffcaa4eb7b853a01d70efafc306a663608ddf00cc7ef
font_01_sfnt_off000070a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A7 10244 bytes
SHA-256: 34ef22f34edc5e3c80983cec53e844ef172ed917e7e8ba6d51996849af32d816

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