Malicious PDF — malware analysis report

Static analysis result for SHA-256 741fa6524a6293a1…

MALICIOUS

PDF

68.2 KB Created: 2021-03-03 03:03:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2b40db25363fb0e0e6bdcc2e114f46f5 SHA-1: a2d124e1eaf48178df9daeb2b874788beca3ae3c SHA-256: 741fa6524a6293a1d17246a4569f43d74a345837d0fa378b1db3fc1b03c0e7c5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/award?keyword=vivint+sky+panel+login PDF link annotation
    • https://cdn.sqhk.co/vubiwete/dNAgels/wuwelonetiwijenura.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412415/normal_6036c7c9f373d.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/sdjeXii/do_any_birds_attack_humans.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/ihjfhdx/ritikizinobidibabi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487416/normal_5ff0bc6d48aa0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405654/normal_6013784a2e87e.pdfIn PDF document text
    • https://cdn.sqhk.co/xilobotinisi/jE4bIJ4/80447652606.pdfIn PDF document text
    • https://cdn.sqhk.co/vonezositixi/ijhaGgh/65790911894.pdfIn PDF document text
    • https://cdn.sqhk.co/ludozenidi/1OkhjXm/kifivalutigakixipimikud.pdfIn PDF document text
    • https://cdn.sqhk.co/pirasemofoge/jfiiDgi/98307866589.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/gZMoqKU/48990308823.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425501/normal_602cac0d6557b.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwovodegi/SifBiaj/flashlight_gloves_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/dutudovajud/gjjjiij/83988180974.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393901/normal_5fcc8d9e0ab16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455660/normal_5fd63225cb78c.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/musoxifuvitalo/konofuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/tisawuliketuguro.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/vemerefuko.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/lenovo_t510_battery_price.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_off0000d0d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D8 5084 bytes
SHA-256: ecd570cc3b4abbb8b16f156db0bfdc6887309ffeb945cbafd1cfd0b04bd6a1e2
font_01_sfnt_off0000e251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE251 9772 bytes
SHA-256: 802e665f74dd9dcc6535822110c6468edff83e5017dbfd8ea3bbcaa9082eabe4