Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e730446f4243daa…

MALICIOUS

PDF

74.5 KB Created: 2021-01-24 12:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-07-02
MD5: 2da30c77dfaec590f7e1209e0bc8d21c SHA-1: d330b47895b07b29a870b278fd7b11511af491ce SHA-256: 0e730446f4243daa00cde113b118aeebc9b3997811b35eb21af3c5de628aa368
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/123?utm_term=pneumatic+valves+pdf In PDF document text
    • https://static.s123-cdn-static.com/uploads/4375708/normal_5fc7515d19552.pdfIn PDF document text
    • http://xadixul.66ghz.com/backup_android_contacts_google_sync.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470967/normal_5fde909717563.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469834/normal_5fce56e4d9a8c.pdfIn PDF document text
    • https://cdn.sqhk.co/kupibetefuko/oeiiZij/xubasozodu.pdfIn PDF document text
    • https://cdn.sqhk.co/zutujodara/gegjjen/tofeforikifuxelumumefe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490950/normal_6000901032944.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411246/normal_5fcefcb9a9dfb.pdfIn PDF document text
    • https://cdn.sqhk.co/sirigibi/agigiS3/91156543674.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/bigSgh0/79999639525.pdfIn PDF document text
    • https://cdn.sqhk.co/kexofodatop/iggjUYN/85406310167.pdfIn PDF document text
    • https://cdn.sqhk.co/nujamaweke/TjaJxfy/word_search_free_printable_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/vitozogog/ridpjhM/shoot_the_apple_of_my_head.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xokifenutotumu.epizy.com/88278434116.pdfIn PDF document text
    • http://lojetewope.epizy.com/rejubetelerepoguj.pdfIn PDF document text
    • http://megutid.epizy.com/bujedinijepa.pdfIn PDF document text
    • http://bapifodog.epizy.com/babel_full_movie_300mb.pdfIn PDF document text
    • http://wawuzir.epizy.com/69735178560.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE875 5264 bytes
SHA-256: f0c2009dbcfe537789348d4caa2700589ec7eba02bad6255106c9e1b014cffba
font_01_sfnt_off0000fa55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA55 10220 bytes
SHA-256: 010028f678870d7c8fb7053a5931d9e94f1d67d816a2f9429f9b0215d5ddb470

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