Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b3b1f3a2e062ebd…

MALICIOUS

PDF

71.1 KB Created: 2021-02-28 13:05:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d3eab88e7246c8e0b3eff740b04bfccc SHA-1: 9cd29d4fc0e2618d76c5b019f60b676579c16080 SHA-256: 6b3b1f3a2e062ebd61f9b01fefd03b1aefa7bd388dccc8d01bf59a8caed2aebb
136 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
  • 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://xajibur.ru/123?utm_term=how+do+i+connect+my+canon+mg3600+printer+to+wifi PDF link annotation
    • https://cdn.sqhk.co/xenivoronizu/hgszDqF/weed_wacker_blades_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/ihh0jbf/51867435737.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454043/normal_5fd67d1960629.pdfIn PDF document text
    • https://cdn.sqhk.co/mezugifosa/7hehat2/vifebizaxafobodo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423431/normal_601cc93f9c013.pdfIn PDF document text
    • https://cdn.sqhk.co/fenogate/cuEMQja/ark_survival_evolved_dododex_oviraptor.pdfIn PDF document text
    • http://dawajilimomod.iblogger.org/pemulabelusovorosa.pdfIn PDF document text
    • https://cdn.sqhk.co/nowovadizeb/jjT5ggf/supreme_hair_bobbles_clear.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370791/normal_602c058aa8654.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gewisetug/resoba.pdfIn PDF document text
    • http://kagabefusexem.epizy.com/xodazex.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/hp_elitedisplay_e273q_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/tv_guide_northern_tasmania.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/how_to_upgrade_icloud_drive.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/jijavuvavutigaxefim.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_off0000d6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6AC 5880 bytes
SHA-256: 354f299eee32225d173f18705b549679de608b55f81d4fe9ff8ec1224bc95f76
font_01_sfnt_off0000eab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB0 10652 bytes
SHA-256: 02c59ff58df53266d1ffe8a634e05893cdfc2c1ba6429de3da263f54789563d8