Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa740b524ea9178…

MALICIOUS

PDF

72.1 KB Created: 2021-02-09 12:50:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7221172ef7701127ed54b484506e1e0b SHA-1: 43407fde57ff8bbc8c5513212ab85f304e7a5774 SHA-256: 2fa740b524ea91780b35dabc1f0b813f03e546b4e3cef30ef7677e7efc5f8ec9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=bunny%20rabbit%20card%20template PDF link annotation
    • https://cdn.sqhk.co/baxemazisod/iffPAoM/hoops_basketball_arcade_machine.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457332/normal_5fcaba7e5dfd3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488102/normal_5fcc4decda2d3.pdfIn PDF document text
    • http://laulu-go.ru/6645817476150loq.pdfIn PDF document text
    • http://clubstore.pro/download_smash_hit_mod_apk_revdldgqwo.pdfIn PDF document text
    • http://youralteragoods.com/farm_heroes_saga_cheats_unlimited_livesrfvc2.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/lovomijelun/kavurisu.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/duvoxitadebiwumab.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/fudikuzitomekasogu.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/67247032324.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/holkar_cricket_stadium_indore_pitch_report.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/37125430867.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/39851305698.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/golang_html_template_define_variable.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/lagadewirovezemumo.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_off0000ddba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBA 5332 bytes
SHA-256: 4fc067f62389e6410a596b5d6d044096e29a91b2b7b5fb471b3459175c9f571e
font_01_sfnt_off0000efc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC5 10496 bytes
SHA-256: 6209ff68399510394c4a79122953a72227b3dae1a510386da1f0fa9038b61b4b