Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e9a182ce0ce241…

MALICIOUS

PDF

45.6 KB Created: 2020-09-23 09:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8efcec30958b934cca2346341d2bd522 SHA-1: bebb4e90b8cea2e244b89eb9be1e7b9b1981cfff SHA-256: d9e9a182ce0ce241655699ebe676abd68f717ca959bd857b45f1fd4149287638
194 Risk Score

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/wix?keyword=lol+riot+points+code+generator+download In PDF document text
    • http://files.karenhurd.com/uploads/1/3/1/1/131163833/1241212.pdfIn PDF document text
    • http://files.michaelcostelloengineering.com/uploads/1/3/1/8/131858045/merozuxe-takutoral.pdfIn PDF document text
    • http://morugamo.commonwealthclubrome.org/uploads/1/3/2/7/132741007/6330726.pdfIn PDF document text
    • http://veluvudiv.yourspecialchef.net/uploads/1/3/1/6/131607662/f1ae1876864.pdfIn PDF document text
    • http://files.glfenceconstruction.com/uploads/1/3/0/8/130814805/1021363.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/1/0437/8152/1565/files/database_schema_design_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7003/6904/files/anaconda_spyder_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6460/7398/files/busbar_bending_machine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3735/1323/files/class_12_sociology_project.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4351/2732/files/voxenusunomoniwevisifini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1624/9767/files/carrier_infinity_thermostat_manual.pdfIn PDF document text
    • https://6128d8a7-e8c1-4543-abb5-58766d6520a4.filesusr.com/ugd/0fdb6d_6865a9657f924839982a7a9faa94e0fe.pdf?index=trueIn PDF document text
    • https://2b261898-1f05-4e14-a074-8a913da902c7.filesusr.com/ugd/12f4eb_056b7ce70eba40569ab07cc5fd509126.pdf?index=trueIn PDF document text
    • https://2b14f40c-635f-428f-8302-c6c64c79f53a.filesusr.com/ugd/9ea91e_7c9aa447bb3f4f07b5c87b347b33ef5a.pdf?index=trueIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C9 5272 bytes
SHA-256: 8de041882f7402fb71bd8e28e0c00d534637fe9585fb358e9122e445730d1b67
font_01_sfnt_off000086d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D9 10160 bytes
SHA-256: 1828b46c5f77d637a4687c0d90a538f0db7bfd0441dae29ac1fab1acb547d0fb

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