Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba663e9a6bc8a8b…

MALICIOUS

PDF

69.2 KB Created: 2021-03-03 05:50:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fa5d14b9413ae7f82ffc32eb73a76347 SHA-1: fc61ed5f2730df9f684f0d3e1cd02a63b5402ae0 SHA-256: fba663e9a6bc8a8b0cfa01679284bda683546dd5fb6a595364323a4cc338662f
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://lozipotod.ru/award?keyword=whirlpool+dishwasher+not+drying PDF link annotation
    • https://cdn.sqhk.co/gusiloxi/ehaiaj3/wordpress_admin_login_url_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/kivutuzo/ghjhfhi/votujogoxuxiwulifararuvi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472776/normal_60163952393a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413235/normal_6031bd092d3f5.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/92856750653.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475379/normal_600fee4e5effd.pdfIn PDF document text
    • https://cdn.sqhk.co/xiwapusumoge/iH4iedA/73395244484.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388158/normal_60094d711e2cf.pdfIn PDF document text
    • https://dotomogef.weebly.com/uploads/1/3/4/7/134760479/sotavisesenim.pdfIn PDF document text
    • http://ladekepevij.mygamesonline.org/81202370629.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/iekiggi/siren_head_game_wiki.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/pezofut/zevekavajeli.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/suxoliwutupofesoxixomeg.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/13430066723.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/lakers_injury_report_roto.pdfIn PDF document text
    • http://zasuwunal.myartsonline.com/29070924004.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_off0000d28d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD28D 5428 bytes
SHA-256: 84a55078d4b8ef37647d84b5054765a5ed15affc07ab7b33e3a2128da1b70933
font_01_sfnt_off0000e51a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE51A 10232 bytes
SHA-256: e5708c067b9662d1e43e870f80ef200fccd411fce566533e41b9803a71348ed9