Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eda554779a4fc76…

MALICIOUS

PDF

77.1 KB Created: 2021-02-17 03:52:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: f5edbecfe59445cbb807fefe7fa4329c SHA-1: 3b47688e9b611c60652faa9fc21a6b8b4d14e9d0 SHA-256: 3eda554779a4fc768a00924750d511995bb6860366cc6eb5cd47023362f93f85
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://leonvi.ru/wix?keyword=v+force+weight+vest+ebay PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459318/normal_5fca7c092ad52.pdfIn PDF document text
    • https://cdn.sqhk.co/gulanuwe/pRgi37L/40732041222.pdfIn PDF document text
    • http://bestita.space/sukipejadebofezupepibipju34n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474222/normal_5fe676b2f13ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468268/normal_601ee25d259fe.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/Ogivjjh/hitman_sniper_assassin_challenge_colorado.pdfIn PDF document text
    • https://cdn.sqhk.co/bovokolel/ia8Pegj/zombie_frontier_3_hack_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/torixugajo/jhicjhY/74577741237.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sijomawawu.epizy.com/msa_altair_4xr_multigas_detector_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/runuzitexokol/17161832152.pdfIn PDF document text
    • http://niwewoxupasobu.epizy.com/95278515687.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/likabatefojokun.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/wallpaper_hd_hare_krishna.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/1665913777.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/environmental_air_pollution_nptel.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/dosekulo.pdfIn PDF document text
    • http://bupojur.rf.gd/fubelisiveranumabosonifi.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/majorifogibufulupu.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_off0000ee79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE79 5468 bytes
SHA-256: 6cbc291a97ea372aa7664d9913462f272abc67b5eb610983ac2cdc71fcca505a
font_01_sfnt_off0001013b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013B 11196 bytes
SHA-256: baa088e60fa935517ed0096bd155849c2fac3b45dedffa1436c52afd56bda5e6