Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f1c105b9797f12c…

MALICIOUS

PDF

70.9 KB Created: 2021-02-26 05:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bd26bd30ee270bea3c7ade6c38927067 SHA-1: c5cba96a63b2a814eef4c4d6ca9b81bf5dc4261c SHA-256: 2f1c105b9797f12c0a000742b7b86b99d60ae721738876fcca2f8aefbcfb10e2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://jacksth.ru/wix?keyword=game+apk+ngoc+rong+online PDF link annotation
    • https://cdn.sqhk.co/wojusipi/2ibjbij/nails_ideas_for_fall_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500446/normal_5fcce12ca3c00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366316/normal_600bb4f25fad5.pdfIn PDF document text
    • https://cdn.sqhk.co/linaxezo/dfgdeha/balenciaga_belt_bag_red.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379720/normal_601a2f57d69c6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vovugezufined.epizy.com/abstinencia_benzodiacepinas.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/due_diligence_report_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/mac_os_9_bootable_iso.pdfIn PDF document text
    • http://baniginoso.epizy.com/kurominekowa.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/behringer_xenyx_802_mixer.pdfIn PDF document text
    • http://sabukizazuse.epizy.com/baaghi_2_full_video_song_tinyjuke.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/bemebekotegokakisu.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/feluseduzijixobeti.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_off0000d9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BB 5172 bytes
SHA-256: 72870dcac644e5eff4e90b548826e6fdf83a745929354751036e8cdddf5fba94
font_01_sfnt_off0000eb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB49 10472 bytes
SHA-256: 7fc302856d9531da2cd2f1e65819a70a4aab256706105718d23e59035040ccd0