Malicious PDF — malware analysis report

Static analysis result for SHA-256 847bf289f60b753c…

MALICIOUS

PDF

77.1 KB Created: 2021-02-03 06:46:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 27307b193d393b32e65b4372b987e933 SHA-1: 1dbf0eac22e8dcff1129cb703a69b6d5f2b4cfd5 SHA-256: 847bf289f60b753cb1b87c647efc21a7f78783b98d174937ed37c010c4434187
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://seumenha.ru/aws?utm_term=call+of+duty+mobile+android+mod PDF link annotation
    • https://cdn.sqhk.co/tuxisilogok/ciejfWd/54507529047.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486975/normal_6010a609d08cb.pdfIn PDF document text
    • http://formulamoney.top/fofugajabasedozodpo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408981/normal_601555bfec59e.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/xBdMic0/final_fantasy_7_remake_soundtrack_special_edit_version.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489237/normal_5fdbe20fa0546.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388421/normal_5fc74699450e1.pdfIn PDF document text
    • https://cdn.sqhk.co/zupitefa/Xkf2jeD/11498562846.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447460/normal_6008df794d53d.pdfIn PDF document text
    • https://cdn.sqhk.co/jexozumumanu/egdhdfv/extreme_car_driving_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/kevejonob/eULibje/35052918606.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/vabemavuputenif/51786091792.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/wafexerapamuturipubudafa.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/42028951743.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/rapanirovuxufamadeni.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_off0000ef8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8E 5020 bytes
SHA-256: dfe3a36f8e7c7504600ab7798e943529d26efb691532c98cd58be2547acdcf24
font_01_sfnt_off00010093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10093 12092 bytes
SHA-256: 8acbcb0a96ee20a51f467924c2333e0d15efdb379d39d991387914c3a64f6e50