Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad9f79d718ab65e…

MALICIOUS

PDF

70.0 KB Created: 2020-04-11 10:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 449c07f8fcfcbae3fcfe533dd632e22c SHA-1: d8a6daed1c57afdfd1e252264113ae7dbbe01084 SHA-256: 6ad9f79d718ab65e3a7ed8fcf55b59ab94146e1b8fd98d2907e4fac421c9faf8
96 Risk Score

Malware Insights

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

This PDF document contains numerous links to external PDF files, a technique often used for SEO manipulation or to host malicious content. The presence of "Overwatch free download" in the document body and a related URL suggests a lure to download potentially unwanted software. The ML classifier strongly indicated maliciousness, and the PDF structure with a link farm supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://cyclebavaria.com/uploads/1/3/0/5/130552097/130552097.html#overwatch+free+download PDF link annotation
    • http://tessawarburtonbookbinder.com/uploads/1/3/1/4/131438876/vutefopaxerewex-mapuvamubepafux.pdfIn PDF document text
    • http://southerntastesweets.com/uploads/1/3/1/3/131398338/zesikewat.pdfIn PDF document text
    • http://marcelwesdorp.nl/uploads/1/3/0/2/130270869/dc32b5.pdfIn PDF document text
    • http://ruwachenjasmine.com/uploads/1/3/1/3/131383258/kikutafuregovenuk.pdfIn PDF document text
    • http://worldofmommytee.com/uploads/1/3/1/0/131071113/wewegobotevumo.pdfIn PDF document text
    • http://golfdeslacs.be/uploads/1/3/1/4/131411431/dorajinijag_modevexulat_zurejekut_gidegani.pdfIn PDF document text
    • http://straightpipeexhaust.com/uploads/1/3/0/7/130740573/lazemigisab.pdfIn PDF document text
    • http://ucalbums.org/uploads/1/3/0/5/130552016/e2fd54b05.pdfIn PDF document text
    • http://fspchaptershowcase.org/uploads/1/3/0/6/130620842/xufuvek_rolepobivegazet_morid_bibigubixapu.pdfIn PDF document text
    • http://gaydenassessoriacnh.net/uploads/1/3/0/4/130436050/wegomawijibitofifupu.pdfIn PDF document text
    • http://rebeccaspostpartumservices.com/uploads/1/3/1/4/131438825/4410442.pdfIn PDF document text
    • http://easyak.com/uploads/1/3/0/5/130551049/novotejafavek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn 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_off0000bce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCE3 11624 bytes
SHA-256: 2574a50098ba85ad9120ba1d2d2dab9fc9d88be99b89e4e96765c0e2e73080ea
font_01_sfnt_off0000e181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE181 2736 bytes
SHA-256: 27aad4e7100ae85831cc1a9cf4859e84521ff6b1ee9ac199fa10e6c4d4b25dad
font_02_sfnt_off0000eb2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2E 24416 bytes
SHA-256: d8eb9137ffa8f66b6c37afe098b40b10a2605bef8116758d49d8d891d7febf1d

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