Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d3b075046f61d7…

MALICIOUS

PDF

88.6 KB Created: 2021-05-08 05:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1aa819a533fc3ccc290f127eafdbe533 SHA-1: b894986085e12d70fc4947a2a695b7aa0e7da2a4 SHA-256: c7d3b075046f61d7ea62719f82d7331bfbc7057b65ed583e7636468e13ab4bb3
76 Risk Score

Malware Insights

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

The PDF file contains a lure related to gluten and dairy-free candy, which redirects to the URL https://ponafet.ru/strik. This URL is flagged as a redirector for free-download phishing. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded URI heuristics point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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.
  • 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 https://ponafet.ru/strik?utm_term=what+kind+of+candy+is+gluten+and+dairy+free PDF link annotation
    • https://cdn.sqhk.co/tiwumixe/avjbjbN/92855161186.pdfIn PDF document text
    • http://fosikukiwa.iblogger.org/14610917304.pdfIn PDF document text
    • https://cdn.sqhk.co/faxonudogot/LIijgg3/cable_voltage_drop_calculation.pdfIn PDF document text
    • https://zojegidaluvimov.weebly.com/uploads/1/3/4/1/134109086/4162925.pdfIn PDF document text
    • https://fudonorovivur.weebly.com/uploads/1/3/4/6/134665028/4374143.pdfIn PDF document text
    • https://cdn.sqhk.co/mamozinuba/je0iajd/gorewufamogodir.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/CBzRJjj/4831920716.pdfIn PDF document text
    • https://cdn.sqhk.co/zibavuna/ijbAhSg/rufesusixojabu.pdfIn PDF document text
    • https://sowumubisi.weebly.com/uploads/1/3/2/8/132815199/7201800.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://goterarok.rf.gd/deturujaditedimik.pdfIn PDF document text
    • http://sawokinajiralar.rf.gd/eicr_report_codes.pdfIn PDF document text
    • http://ramejepazino.rf.gd/informant_details_meaning_in_telugu.pdfIn PDF document text
    • http://vovuxofeli.rf.gd/3840477010.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/patekoduzizitimizezexata.pdfIn PDF document text
    • http://nawevoted.epizy.com/xedepasatelirifa.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/32890933248.pdfIn PDF document text
    • http://munuwuxamujov.rf.gd/lezezevanar.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/adobe_flash_player_8_android.pdfIn PDF document text
    • http://sazerubewufuzuk.epizy.com/pubezixogatipu.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/tourism_holdings_limited_annual_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/gipilat.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/sodepadorajelejewaxazu.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FA 5344 bytes
SHA-256: 52817fafc396272e8cbfaf1b32482e3c2c30564db918f659c99f8cb2abf21695
font_01_sfnt_off00010b2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B2D 11292 bytes
SHA-256: c8d8f9cb59bce011d26282ea9c0b0334fad2db43c1ec536cf58e4eb2fa3c5f32
font_02_sfnt_off000131ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131AB 16060 bytes
SHA-256: 2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90
font_03_sfnt_off00014642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14642 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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