Malicious PDF — malware analysis report

Static analysis result for SHA-256 63071e0adedd8a82…

MALICIOUS

PDF

69.1 KB Created: 2021-03-10 13:23:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1bffd635f63e4c5e01596d62f6038faa SHA-1: 40217d8a02985c217f11b857b0f183de5b0eca13 SHA-256: 63071e0adedd8a82363af87e981888c137ebe7ef1094bca8e0f98acccf59d153
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/wb?keyword=.308%20reloading%20kit%20for%20sale%20australia In PDF document text
    • https://static.s123-cdn-static.com/uploads/4383687/normal_5fe0bdc34d921.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485579/normal_5fcd25fd10319.pdfIn PDF document text
    • http://hydraruzxpnew4af.exchange/adobe_lightroom_cc_app_for_androidt8fws.pdfIn PDF document text
    • http://nomegejevo.22web.org/gorumosizajixek.pdfIn PDF document text
    • http://3bureaureport.info/is_stock_investing_for_dummies_a_good_bookaj50n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463785/normal_60179aa835aa5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366031/normal_5ff433ed1e6b1.pdfIn PDF document text
    • http://hookup673.site/haar_wavelet_transform_matlab_codefpry8.pdfIn PDF document text
    • http://famexukox.22web.org/63974061617.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487916/normal_5fed94df9e585.pdfIn PDF document text
    • http://apsdd54gfv.xyz/kipizm5eo6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tukudapig.epizy.com/2013_jeep_grand_cherokee_srt8_performance_parts.pdfIn PDF document text
    • https://1e8c0764-4a0f-46ab-84a2-5f63a8a44928.filesusr.com/ugd/6a0acf_3b84297df1744b24962076ec9b5adbdd.pdf?index=trueIn PDF document text
    • https://c93e3e17-565c-496b-95a0-45fea83b015f.filesusr.com/ugd/cd9bb8_a6bab43941ee4f7a8bd165ce2359b19b.pdf?index=trueIn PDF document text
    • https://5ce19dfa-329f-495d-88d1-e1e7834d9072.filesusr.com/ugd/d902bb_1ae307682e874e2ead2b89e878e5c9c7.pdf?index=trueIn PDF document text
    • https://1f2f8e77-98df-4c5e-b88a-83bc2b612b58.filesusr.com/ugd/5c7528_4407676997164a64a1ac393da60057fb.pdf?index=trueIn PDF document text
    • http://luzadewo.epizy.com/20334668043.pdfIn PDF document text
    • https://0879403c-3be5-48e4-925f-21334a7d5cfe.filesusr.com/ugd/407fcc_a203d5fe27d84e5b80ca2ac5ccc60c7d.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_off0000d018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD018 5576 bytes
SHA-256: 7285ab6850ddec233ebdfe06012a79cacd6c7da1188f09b80a9f49f5db054ce8
font_01_sfnt_off0000e327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE327 10628 bytes
SHA-256: b3014a2b336ca2850a71f02da4c4dcce627be2c9b119b6a4059ea78e3cc78709

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