Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1f21702cbaaebde…

MALICIOUS

PDF

41.8 KB Created: 2020-08-20 06:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c84c14a3d6875f9286ee358b93b3839c SHA-1: 21cd1731ba0a4a99e546b0054d31d893975c510d SHA-256: f1f21702cbaaebde2224045f50e57d131ea49aa8c9a7200c16e05f367775389b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to shopify domains, but one critical link directs to a known malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though partially corrupted, contains the URL that triggered the malicious redirector heuristic, suggesting a lure 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=estacion+chamartin+telefono+informacion In PDF document text
    • http://files.hop2osoda.com/uploads/1/3/1/6/131607063/meboxafadoxebif-damito-fosuvaxidojeb-fatum.pdfIn PDF document text
    • http://gilena.narrowminded714.com/uploads/1/3/0/7/130776394/5002075.pdfIn PDF document text
    • http://files.jkcakecreations.co.uk/uploads/1/3/1/4/131407164/301c4a298.pdfIn PDF document text
    • http://kejujiva.cfmmirrors.ca/uploads/1/3/1/6/131606490/gixigaxixutulepebagu.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/1/0435/1416/7450/files/bailey_jay_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/33238264978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/anomia_social_anemia_estatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5828/9045/files/free_flower_border_for_word_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6268/9946/files/71223380037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3808/0167/files/anticuerpos_antinucleares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8501/1869/files/48474709496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23313492251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8080/files/30636608359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/pulisezakazilufokol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8096/4510/files/ansi_b16._5_standard.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_off0000616f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616F 5080 bytes
SHA-256: e21e6d2f4b29c0e1acade74612c1172c72e97fa12ced39bff2d4412501005ab4
font_01_sfnt_off00007281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7281 11660 bytes
SHA-256: a03e2972e8e69b9f8ad58bc01692e79aa0ccb86434789c1b78ffd2b46c3b6a18

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