Malicious PDF — malware analysis report

Static analysis result for SHA-256 18d085ca45215644…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 16:28:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ff338cc2999baeb8075679e83e6c4f83 SHA-1: 737fb0f95cdcf3bae7b8b1c3f0e921f4455cc132 SHA-256: 18d085ca45215644316d656eb81ba6f39a7fe786c6a9697dd42d943839f120dd
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://baarspo.ru/wb?keyword=why%20is%20qualitative%20research%20important%20in%20psychology PDF link annotation
    • http://zunuruxeguxifi.mygamesonline.org/vowapibalometuzosetaveju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496810/normal_5ff3e460aa5f4.pdfIn PDF document text
    • http://dorulezebum.sportsontheweb.net/tejelagud.pdfIn PDF document text
    • https://cdn.sqhk.co/lukapokobejo/haAgcij/32509239366.pdfIn PDF document text
    • https://cdn.sqhk.co/dodirorip/id8009N/one_gun_stickman_apk.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/netters_anatomy_flash_cards_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386591/normal_5ff25cca28097.pdfIn PDF document text
    • https://cdn.sqhk.co/suwajipufo/jjLhh22/kopisiteloj.pdfIn PDF document text
    • http://vehicleusains.com/shark_lift_away_deluxe_reviewst6x20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482413/normal_6008480693e80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427785/normal_5ff17b77f1fb9.pdfIn PDF document text
    • https://cdn.sqhk.co/rakujolo/jOhiMwf/16215251072.pdfIn PDF document text
    • http://dkmz3.club/graco_fitfold_jogger_travel_system_reviewsvfa92.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/taxurobafoweromuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xizokokov.epizy.com/miwusoze.pdfIn PDF document text
    • http://vumamuv.myartsonline.com/korajugede.pdfIn PDF document text
    • http://sulifuzefusuw.rf.gd/72282488487.pdfIn PDF document text
    • http://tatovod.epizy.com/angular_5_component_without_template.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_off0000de8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8E 5648 bytes
SHA-256: d6e2de4e4c714834d0ced96c8609c1274e83fe9b64d939fb882e6e2f38d299b4
font_01_sfnt_off0000f1b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B2 10916 bytes
SHA-256: 440621047e51aa3f5999386bb0826ed07edc39befca70130b69553fd5722caaf