Malicious PDF — malware analysis report

Static analysis result for SHA-256 68713d2bd97e600c…

MALICIOUS

PDF

69.8 KB Created: 2021-02-16 06:37:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ea9a1af76703521144934df00bf1f188 SHA-1: 124cd095241b90702d9a797b40968bc075bae4dc SHA-256: 68713d2bd97e600c16854a5d7fd5ce538dcc62dfdd3b2ae4dcfeafb0ba2d4f85
136 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
  • 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://jottigo.ru/wix?keyword=best+manual+transmission+sedans+2020 PDF link annotation
    • http://jasapremium.xyz/rudilatadegepupi5d7qf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483856/normal_60060407c6960.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451230/normal_601f0ce1910d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405186/normal_5fd36aaa76529.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446759/normal_600d8accd6abb.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/hcjiTS6/mipilevisemaj.pdfIn PDF document text
    • https://cdn.sqhk.co/diratukuz/MZhhbq8/42163358997.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413842/normal_5feb431d2b639.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454163/normal_5fdb8c79df95b.pdfIn PDF document text
    • https://cdn.sqhk.co/xamizine/RQigVih/nutrisystem_ice_cream_sandwich_nutrition_facts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465388/normal_5fd07f4d8eb32.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473903/normal_5ff49de53cd42.pdfIn PDF document text
    • http://mihetos.xyz/75906703570gl7qe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382201/normal_5ff6a90d8e7bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381104/normal_5ffb150758ae2.pdfIn PDF document text
    • https://cdn.sqhk.co/zijopenuxafi/oVOr0jf/bogopigafodenaberuni.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C6 5296 bytes
SHA-256: 9b91f9feafa9790ce85f1763ea73b8e4690e7ce1af59f487e5a4ebaa176fc4e5
font_01_sfnt_off0000e7a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A7 10160 bytes
SHA-256: 6d39f8fe0cf878953781b51d5bd70ec938506d527b7e6918ab7e1d04eeab7f5e