Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa412fbfc5062b7b…

MALICIOUS

PDF

71.3 KB Created: 2021-02-23 08:44:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 3946b21655baf3ab693210d099a68ccd SHA-1: b5e43f6354ade1c623350b5d8718f693892e20db SHA-256: fa412fbfc5062b7b09a5c0b0a2dfc672a59bac793d9b91c49f8c94e5b0c6f4e3
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=st+john%2527s+cemetery+stratford+ct PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403822/normal_602da9f55673e.pdfIn PDF document text
    • https://juwujumatel.weebly.com/uploads/1/3/4/0/134042908/cc856b6.pdfIn PDF document text
    • https://cdn.sqhk.co/jilanukubok/hijjVvN/hero_wars_mobile_brog_the_conqueror_best_team.pdfIn PDF document text
    • https://falojabuvo.weebly.com/uploads/1/3/4/7/134774067/kugelebewepavofu.pdfIn PDF document text
    • https://wodekatim.weebly.com/uploads/1/3/1/4/131405934/2473393.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382003/normal_601fab52a6bc9.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxomawelej/hhjhdge/dish_anywhere_not_working_after_update.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479254/normal_5fc74d4c53738.pdfIn PDF document text
    • https://gazumewus.weebly.com/uploads/1/3/4/9/134901575/fec62.pdfIn PDF document text
    • https://zejizatuziw.weebly.com/uploads/1/3/0/7/130739720/kenofutijozixubeku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490523/normal_5fedde6232dca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417221/normal_5fcbad1edf63d.pdfIn PDF document text
    • https://cdn.sqhk.co/lakodatoli/gfhha7K/hangout_with_yoo_lee_hyori.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/muxegeza/c_v_performance_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/nenuxaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/dulaluvodasuwiziwotekuw.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/twisted_pair_cable.pdfIn PDF document text
    • http://soburuwukipo.epizy.com/broward_county_library_volunteer_form.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F0 5544 bytes
SHA-256: 763bc261430063434f64f7a5cd254dadd7d01f9c4c3df52427746691352bf80b
font_01_sfnt_off0000eab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB5 10832 bytes
SHA-256: 28388b089142cd97e4a6eca01bf7c682059d8b6f840385c47306c3881e873bb5

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