Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ee2750f5552cac0…

MALICIOUS

PDF

32.9 KB Created: 2020-08-23 20:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46c345a78b1dda8f200a7224f683b40b SHA-1: eedd336797c98f55e589f50fc9262f30217eaf5b SHA-256: 4ee2750f5552cac04fa3dd5fd88b86e2e1adf56084c0089fcffcbd83405f2efa
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one prominent link leading to a known malicious redirector. The document body text, though heavily obfuscated, contains the same lure text as the malicious URL, suggesting a social engineering attempt to trick the user into clicking the link. The PDF is likely part of a link farm designed to distribute malware or phishing content.

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=porcupine+tree+lazarus+piano+sheet+music+free In PDF document text
    • http://files.europetothepeople.eu/uploads/1/3/0/9/130969990/2038000.pdfIn PDF document text
    • http://fagusur.chicagodrip.com/uploads/1/3/1/4/131438008/d688d6.pdfIn PDF document text
    • http://files.mediagearpro.com/uploads/1/3/1/3/131383207/dumixufijijeza.pdfIn PDF document text
    • http://files.gbccollege.org/uploads/1/3/0/8/130873715/1244696.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/1/0432/9698/1147/files/pejuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9108/0869/files/tezirimusurumapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5560/2078/files/refiluwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1805/8901/files/benzimidazoles_mecanismo_de_accion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/zisinadekapikeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7751/files/pasar_de_a_word_gratis_en_linea.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0695/7467/files/71976032642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/datawuwabemetixomizodim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/97584240580.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 8

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_off00004401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4401 5308 bytes
SHA-256: eae8f9eedbc4d388b4c0cc96223b77569c0081705e85afc4a0154da26a62a4dd
font_01_sfnt_off000055e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E5 9564 bytes
SHA-256: 45f47c7fa00f8eb1b1645356a8379e49970e3e12efd5afff16ab262c43d4166d

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