Malicious PDF — malware analysis report

Static analysis result for SHA-256 f56bbe8f0f98190c…

MALICIOUS

PDF

47.1 KB Created: 2020-08-04 05:24:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4747a0c79e92773e534f7aa65537a08c SHA-1: 468be4cd3e4f0585fb5ac1b186e20b3010fa783d SHA-256: f56bbe8f0f98190cead4b13c13f6740d950a511095ffc02ed52c3b4f04b62023
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a 'company presentation in PDF' lure, and the primary malicious URL is reconstructed from the document content. This indicates a phishing attempt designed to redirect users to malicious infrastructure.

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=apresenta%25C3%25A7%25C3%25A3o+empresa+em+pdf In PDF document text
    • http://files.bulldogconstructiondfw.com/uploads/1/3/1/4/131483154/werizodilamej-vunijos-dunufa-sitedufu.pdfIn PDF document text
    • http://files.elocuentecollections.com/uploads/1/3/1/4/131407737/jamesimuvo.pdfIn PDF document text
    • http://pesum.prycelessconsulting.com/uploads/1/3/1/0/131070152/purewugigini.pdfIn PDF document text
    • http://files.himburgelectronics.com/uploads/1/3/1/3/131378918/e081c44.pdfIn PDF document text
    • http://files.ennishistory.com/uploads/1/3/0/9/130969322/9593448.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/1/0430/7147/1767/files/tetinunipujitexolivux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7438/8119/files/jasef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/marine_biology_peter_castro_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/97449751243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4669/7125/files/bidart_campos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/kumavuxosorilufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/8th_grade_math_tests.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6980/0597/files/91639881208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0637/7632/files/13623381932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/fodipotalusujarexozelura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7503/4520/files/33897838563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8081/8581/files/jedejizopem.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_off00007599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7599 5644 bytes
SHA-256: d132cbda291607f62a2ab45d64a0a33e1ffd6f38e1822f7ad7811515c8460649
font_01_sfnt_off0000881f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881F 12256 bytes
SHA-256: 137f7f3654ef38ea639a3470e763d0862f525ff404e1714a13ca53c357d77de7

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