Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75e2524962ab485…

MALICIOUS

PDF

44.6 KB Created: 2020-08-15 03:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cad49e5a8bf662895eb82afd40f210ad SHA-1: 4b795cebe4dab2596315af7d45d0e2e300c7e0ba SHA-256: d75e2524962ab485c83b3b52894e7b14e5d50291794b150c9d88c998dd1d68b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious due to a critical heuristic identifying a link to a known malicious redirector infrastructure. Additionally, the PDF contains a large number of external links, characteristic of a link farm. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a malicious site.

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=cal%25C3%25B3+des+mort+formentera In PDF document text
    • http://files.scsa-pa.org/uploads/1/3/1/8/131871568/aad90e1e629.pdfIn PDF document text
    • http://lipelo.charlielevine.org/uploads/1/3/0/8/130814328/2d4729d.pdfIn PDF document text
    • http://files.caneriverchildren.org/uploads/1/3/1/0/131071157/6434485.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/1/0431/9143/5422/files/rujijutatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4854/files/nofubofuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0690/files/lodepozutobidujolubarani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3015/0296/files/fefikilelokulokud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5362/3970/files/84014655448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9117/9160/files/xovupisizala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61927850068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7718/0328/files/software_testing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4501/9035/files/broiler_farming_in_kenya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2154/8194/files/88758292513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53981477141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71419102660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0084/5720/files/9579720346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/pilimudarewizadufesud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0244/5475/files/60172117891.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 3

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_off00006d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8C 5092 bytes
SHA-256: 53281b79592576d88381df244d210eee044b158db7741e779ab74a6e6d5a6f03
font_01_sfnt_off00007e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E83 11616 bytes
SHA-256: 3c86a4a2afafeb8d949366cec320019e663d2a482ae693e29ced51fc80193450

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