Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f3c0af3b1c4c29…

MALICIOUS

PDF

40.4 KB Created: 2020-08-11 17:04:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f2df70252683b872a22594b23eddeba SHA-1: bdbddfd0eb500cd94c74e93ea0a5d55579f6128e SHA-256: 82f3c0af3b1c4c29132e43fc5af9766fd9e54c8422b6a3ac1f138e0ee4f04465
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that also leads to this malicious redirector. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content widely.

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=attestation+pole+emploi+nounou+pdf In PDF document text
    • http://files.bethinkcreate.com/uploads/1/3/2/7/132740218/70bd1ff781.pdfIn PDF document text
    • http://nolefapok.toptierpastry.com/uploads/1/3/0/8/130874207/9be227.pdfIn PDF document text
    • http://files.chemungstormwater.org/uploads/1/3/0/7/130739387/01fe6842337175e.pdfIn PDF document text
    • http://files.localsardinia.com/uploads/1/3/1/0/131070476/lerus_kajab_gowojedurod.pdfIn PDF document text
    • http://tukalesol.hopemdunbar.com/uploads/1/3/0/7/130775795/kaninugaruxef-vizor-sewobugupugover.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/1/0435/8832/1437/files/6034336009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8311/2341/files/tuvirosoporaguzukog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/godezevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/22521017781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/65681576132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2441/4882/files/16385933246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6534/3126/files/60957227880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7963/files/sumexenose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/guilds_of_cadwallon_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/tunofeguforigigesibosal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7983/5547/files/jagalasodotabekomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/nuxugudipobixozunixeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4920/5405/files/nijageg.pdfIn PDF document text
    • https://www.pole-emploi.fr/accueil/In 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_off000061b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B1 5080 bytes
SHA-256: 142e13d495f0b65bc00f83d2e3b9f3a8fa077f65f4ed4f4c7caaa89d8f35d79f
font_01_sfnt_off000072e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72E4 9880 bytes
SHA-256: e3f8db22b37486a21f2453e7eb31ca46974a92a1daac545f3b67bec8c7e950f0

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