Malicious PDF — malware analysis report

Static analysis result for SHA-256 198369221b24e221…

MALICIOUS

PDF

71.0 KB Created: 2021-02-26 18:17:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dcc435bb02d640b85af13370d2392333 SHA-1: 362b16896d33871ec684e3f66ff70adc8a831543 SHA-256: 198369221b24e221c407eb7e980827cfa79ef6e5d42d63b227a2bb6bf87dee41
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://bologen.ru/award?keyword=best+car+battery+jump+starter+consumer+reports PDF link annotation
    • https://cdn.sqhk.co/kelopifagisu/jh62Gid/13570276677.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/aOidHjc/74146433444.pdfIn PDF document text
    • https://cdn.sqhk.co/sejixikerut/WWH9iiI/32080883552.pdfIn PDF document text
    • https://cdn.sqhk.co/kizofapekeku/Agcidhb/bewikagefezupuxevasote.pdfIn PDF document text
    • https://cdn.sqhk.co/fafojipedul/bhhMzCJ/reverso_grammar_checker.pdfIn PDF document text
    • https://cdn.sqhk.co/joduragenep/gheifih/42693163452.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446634/normal_5fd171d3c6789.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/Q4rjcij/vokupijuvamotugumilejod.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/hjif5Y9/53683734872.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465908/normal_5fe202e479fdc.pdfIn PDF document text
    • https://cdn.sqhk.co/zifegowuf/mgftXYy/pofabogusurularozi.pdfIn PDF document text
    • http://boxoxafu.iblogger.org/tojep.pdfIn PDF document text
    • https://cdn.sqhk.co/figegixo/hhgjhjy/how_long_is_the_othello_tunnels.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/tibiigd/welemuwagepomi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403938/normal_5fe298ba4cd13.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lilivuxaja.rf.gd/anthrax_bring_the_noise.pdfIn PDF document text
    • http://kuwopugivowivo.rf.gd/77905165623.pdfIn PDF document text
    • http://xeravujowa.epizy.com/decision_makers_guide_dla_child.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_off0000d853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD853 5412 bytes
SHA-256: 87197a352d3c927f365f6cf92373de164924c2d95a4990479a52dac68cb95a91
font_01_sfnt_off0000eab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB9 10268 bytes
SHA-256: eb43f0666ac0917929926ed19a7fa86a5a5369d67281dd75e82a54fd646bf9d1