Malicious PDF — malware analysis report

Static analysis result for SHA-256 c019bcaae6565255…

MALICIOUS

PDF

46.9 KB Created: 2020-08-08 13:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cc4056d6dd5488fcf1ff4782fec9b57 SHA-1: 96934c9b8d972d1fb69ef192adf5661701dabfc3 SHA-256: c019bcaae65652551ce8ee90ad580f1d88e4381c50b9de7d47725020e85e9a53
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though partially corrupted, contains text related to 'El caballero de olmedo english translation pdf' and embedded URLs, suggesting a lure to disguise the malicious redirector. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=el+caballero+de+olmedo+english+translation+pdf In PDF document text
    • http://files.nectrathletics.com/uploads/1/3/0/9/130968962/820645.pdfIn PDF document text
    • http://files.lakeviewlavenderfarms.ca/uploads/1/3/0/8/130814229/razozimomipodapubuzu.pdfIn PDF document text
    • http://files.stefanfalk.net/uploads/1/3/1/4/131406831/1e9aeef266cef37.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/1/0432/4062/0200/files/46477934064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9561/files/english_grade_10_12_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1750/1852/files/49316396794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1139/0115/files/rapaluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/buforolexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/depivowavoduvej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/16606191123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0809/0535/files/node_js_convert_base64_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5503/7078/files/list_of_20_amino_acids_and_structures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/griffiths_quantum_mechanics_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4293/8784/files/39527002206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/tonapoxur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/59111331509.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_off00007893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7893 5668 bytes
SHA-256: d09bbe9e30b00fed9405454a9650d93ca203ac696cb923ec1d2152a3f86ea87f
font_01_sfnt_off00008baa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAA 10284 bytes
SHA-256: f9c9bf3d42ff80cbdb8e553fe74bd052a949e81b5841ffe0d35933d8974f6538

Open this report in the interactive analyzer, or submit your own file for analysis.