Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0719570fb782c8e…

MALICIOUS

PDF

73.0 KB Created: 2021-02-14 04:12:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ec7f80eeedb5f1c9959285e5124752b7 SHA-1: 45a2322c3845b268a23b9eab5e378e4601c8d004 SHA-256: e0719570fb782c8e59c5c2816d63b6c56d31f33237a33c03abca99f16c125110
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=chhello+divas+movie+video PDF link annotation
    • https://cdn.sqhk.co/duloputemab/hgdoeif/74893804199.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382418/normal_6012dc9b46a74.pdfIn PDF document text
    • https://cdn.sqhk.co/wupetutigo/jahe5jd/loduramesijelufukes.pdfIn PDF document text
    • https://cdn.sqhk.co/mirusopujame/Zjajjh3/stickman_battle_stick_fight_war_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jogujufuza/ibhcigZ/37342375824.pdfIn PDF document text
    • https://banukusisazej.weebly.com/uploads/1/3/4/8/134893357/lexididaxejab_jogorukexujalom_xezezij_suwarul.pdfIn PDF document text
    • https://zisamezasebav.weebly.com/uploads/1/3/3/9/133997726/tevitu-tugiwugoraj.pdfIn PDF document text
    • https://cdn.sqhk.co/selijisede/ZgiBzLf/mods_mexico_euro_truck_simulator_2.pdfIn PDF document text
    • https://cdn.sqhk.co/nukuzulu/egRdgjG/ridijitajuvo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489056/normal_5fd11a11c8768.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475859/normal_6005dc392936f.pdfIn PDF document text
    • https://cdn.sqhk.co/lifudidu/dNjcfoc/english_to_chinese_translation_app_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/ih8ggdX/download_battlevoid_classic_full.pdfIn PDF document text
    • http://dujekuba.22web.org/ardbeg_ontario_weather_report.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/L5m0Mji/dwarf_pigs_for_sale_near_me.pdfIn PDF document text
    • http://didopikorubozav.iblogger.org/vegoziwadokipavu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461229/normal_600b6b1f6a9ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380854/normal_5fdf794f1637a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41E 4936 bytes
SHA-256: 6ccc968a2f680ce7223008a70a4ddbb86f630b7c1046295fa5fef4baf48b715a
font_01_sfnt_off0000f4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BC 10104 bytes
SHA-256: ffb187d7291844a7754dc4bc840a0ff5bbf3cddd48f29a0dd61f34781fa2e8f2

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