Malicious PDF — malware analysis report

Static analysis result for SHA-256 68b49ffd54f7fdfa…

MALICIOUS

PDF

63.5 KB Created: 2021-02-18 06:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3119aab064e2284d04492e700060a68f SHA-1: 234e3a4d28441b873dc98c34eda75b0b28b6f95f SHA-256: 68b49ffd54f7fdfaf301a81c9889217f1c04a77ebe921f2383946b15af1cd468
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=play+earn+to+die+4+hacked PDF link annotation
    • https://cdn.sqhk.co/wekaradukuve/iiifgfB/ikea_dresser_malm_6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378827/normal_5fc8c19222ec0.pdfIn PDF document text
    • https://cdn.sqhk.co/padasagam/giSRw7C/fugikevazimazuwa.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/igrjahh/19590387629.pdfIn PDF document text
    • https://laxepesijuniz.weebly.com/uploads/1/3/1/3/131383562/2981110.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/aSyIYhc/digital_school_signs.pdfIn PDF document text
    • http://tigexesuni.22web.org/copepod_culture.pdfIn PDF document text
    • https://luragelekow.weebly.com/uploads/1/3/4/3/134377287/nasabagadi_zupixev_webimawenim_noruvebekoxatim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489852/normal_5ff891389cf53.pdfIn PDF document text
    • https://cdn.sqhk.co/zisujidixa/4hdNtGF/police_motorbike_highway_rider_traffic_racing_game.pdfIn PDF document text
    • https://cdn.sqhk.co/nexetifosam/idhbhjg/centurylink_small_business_billing_phone_number.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fonumelipo.rf.gd/fit_gap_analysis_template_sap.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_off0000bf33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF33 5104 bytes
SHA-256: cde0f2ea8746d64f156fb9ad7559865d45de802a93d733451039f78bfe40bbf5
font_01_sfnt_off0000d098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD098 9636 bytes
SHA-256: a1096b8e79b245ea40b55c8d94fe6330881096720a35e160532b51796d91a484