Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b9569f9246c326…

MALICIOUS

PDF

72.1 KB Created: 2021-02-19 12:13:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: df80b098ff12072a09280ac4c78664ec SHA-1: 7aae5b177892db53c235d0a26f6546ed3d91000a SHA-256: a8b9569f9246c326361a003b35d4320fb3f6ae3c22a0d009a048c1615ca86a44
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://leonvi.ru/wb?keyword=why%20is%20my%20dyson%20sv03%20pulsing PDF link annotation
    • http://portkamesto.site/solapomezorakajodojozejigyb0dx.pdfIn PDF document text
    • http://copalofa.site/junedoqou3y.pdfIn PDF document text
    • http://purigoguwoz.22web.org/womefuvexapifodalefo.pdfIn PDF document text
    • http://mazonenebu.22web.org/zilokasivabazix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465249/normal_6029c62ca5acf.pdfIn PDF document text
    • http://zabavnyi-slon.ru/favolonufulazulebelugowlnljz.pdfIn PDF document text
    • https://cdn.sqhk.co/zulatobi/gDb2gfj/goat_simulator_free_play.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/gvxhcou/lemonade_store_colorado_springs.pdfIn PDF document text
    • http://openchambre.xyz/biografia_de_alejandro_magnonjg07.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/VEYCgc4/62097211783.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/woneketelak/21482440328.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/disable_spell_check_google_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/deburring_tools_for_sheet_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/broadsheet_newspaper_size_in_india.pdfIn PDF document text
    • http://zokidogonaz.rf.gd/43442288415.pdfIn PDF document text
    • http://karajifaderiwow.epizy.com/baby_laughing_sound_ringtone_free.pdfIn PDF document text
    • http://sixofiwezuxowa.epizy.com/rovena.pdfIn PDF document text
    • http://fifaraxilej.rf.gd/linifajimefavo.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_off0000dca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA8 5548 bytes
SHA-256: 2b4bd58ec8cf80a92b3fdb1047a8f745d1622bff06d60c52d2ba0199a8e2004e
font_01_sfnt_off0000ef81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF81 10464 bytes
SHA-256: 12db8f2461d0a155ed0016c2bfd08954eceaa42d374abd624d02f46e9b426d29