Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6eb4f447c1c7772…

MALICIOUS

PDF

51.2 KB Created: 2020-08-27 22:13:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 800285f9416add2e8d5961c71852b0cc SHA-1: 861133653ee6188c10e852d26cea9aa36943d9b7 SHA-256: a6eb4f447c1c77728a43414bddd39d353a6ce798d891296764f76b19aeb65976
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it is a malicious redirector, linking to a known malicious URL. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body contains the malicious URL and several other unknown URLs, suggesting a phishing or scam attempt to redirect users to malicious 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.ru/pify?keyword=iso+45001+2018 In PDF document text
    • http://wopebedab.theflorecerproject.com/uploads/1/3/1/3/131379478/masedejasurekawuwe.pdfIn PDF document text
    • http://vulum.nesspressnc.com/uploads/1/3/2/7/132740880/besilabukodi.pdfIn PDF document text
    • http://daxufuzum.menomoniesaddleclub.org/uploads/1/3/0/7/130776659/gapozakenudi.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/1/0431/5670/1346/files/fezimamodilase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/organic_chemistry_7th_edition_brown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/bosch_filter_cross_reference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/rameserevinuwilitixiregow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/neumonia_pediatria_2017_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92313200312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/71992602217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9535/9641/files/janupanalasex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/riesgo_pais_definicion.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D82 5008 bytes
SHA-256: 54b0f61a14179d8090b71e29bd083ce9c7cdd77bc5a88750bb37f5c5c1617606
font_01_sfnt_off00007eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB7 13024 bytes
SHA-256: db7bfd61095733302f98e5606fb70e236c0cd3a96073937fd0b39bdf15605f1f
font_02_sfnt_off0000a9f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9F3 16432 bytes
SHA-256: c47408789cc35ad89acaf15b8a66b974f867308cd81c8bc9a63c460cf5af0658

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