Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0febd788772f07b…

MALICIOUS

PDF

219.4 KB Created: 2020-08-19 20:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 415cc0b5470f0d0784c89d3beada939d SHA-1: 2825cff77e5bf12ef6080f8efccc41d302f1332c SHA-256: c0febd788772f07b61285f2705be695669b9ecc731ee9a8898ada9f8eb68d83e
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://ttraff.ru/pify?keyword=pneumonia+guidelines+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2, is identified as a known malicious redirector. This suggests the document is designed to lure users to a harmful destination, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 4

  • 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.
  • 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=pneumonia+guidelines+%25E0%25B9%2584%25E0%25B8%2597%25E0%25B8%25A2 In PDF document text
    • http://files.brentfamilyfarm.com/uploads/1/3/1/3/131398366/zawopudewaduku.pdfIn PDF document text
    • http://files.3pinapod.com/uploads/1/3/1/6/131607010/f8711f.pdfIn PDF document text
    • http://xozuboj.raisingbasketballplayers.com/uploads/1/3/1/0/131070374/fubaza-mifemozela-nikudobumuzu-gumoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6071/files/vadabadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8570/8968/files/zixurirajudareputakupix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/rewapafarekujeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/wajiraxubalowasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65760981278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0938/4343/files/papiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1931/5872/files/catapult_king_mod_apk_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8281/3341/files/antrenmanlarla_matematik_geometri_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikidewutuxazumal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5771/6117/files/99721940526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/southgate_cinema_grants_pass_movie_times.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1276/3298/files/suffix_words_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5825/6286/files/56928561136.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30034 5052 bytes
SHA-256: 09e3dc8fcf44568404546edeb6ef5a25559eaf3fad8ff5449c1b3990ba76b70c
font_01_sfnt_off00031144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31144 6228 bytes
SHA-256: 0fbd635347094b7f8520fdac7ee126662e83bc2306d96d60919cbc5f499d3c54
font_02_sfnt_off00032169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32169 6172 bytes
SHA-256: 129b99fa7193ddddc950da5f76a3df2c7a525e94fd0f790d99cca34732075ca6
font_03_sfnt_off0003316d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3316D 13716 bytes
SHA-256: dc3a8307ae6181f0ceb67d61fe2444cb4cd75449b1a4e6356755948ac73fb3ba