Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94028cad9fe0a5b…

MALICIOUS

PDF

70.6 KB Created: 2021-03-07 12:26:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 279bab406f8b9eb4c028f240d1908311 SHA-1: c5d01a5c6addbf28f0fdb70f888f60206c6a6af3 SHA-256: e94028cad9fe0a5ba68c06f14c9216ff9b2655e74686d2e1eced12b9df2a2fc0
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/wix?keyword=por+quien+eres+tu+pista PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483081/normal_5fd8269cc0fe4.pdfIn PDF document text
    • https://cdn.sqhk.co/togodawexu/ghiejal/26442843024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379984/normal_60269dabe8c00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425005/normal_600b8db37a22c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369632/normal_60449474165a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_603efe5597a42.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382208/normal_5ffa73127c31f.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/hjbphet/crazy_car_traffic_racing_apk_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466370/normal_60071c642e729.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391314/normal_5fe7dee3bbbeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405437/normal_603a8f5235eb3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://07d68bf2-0661-47e2-9ffe-eae068a071af.filesusr.com/ugd/fef806_849ec8ad75964412beec5d9747c97bf4.pdf?index=trueIn PDF document text
    • https://3b0fe5ff-7f86-489c-8138-fc984e51136c.filesusr.com/ugd/bfd78a_63582529a9d6462398851057f16e22f3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/89e84296-dc62-44d2-b99b-3bd75b28e089/naselekiporiru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/549278f3-daec-4669-9448-a38ea256f0b5/2454762351.pdfIn PDF document text
    • https://6205d428-d5dc-494e-bbc3-e2236f9d811e.filesusr.com/ugd/6885a6_95c3300e948d4e68b7633925bad4736f.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F2 4792 bytes
SHA-256: e10aab69d112c441886efc2d6f7376338e6cd61ab303440d313b3c0c46d90181
font_01_sfnt_off0000d842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD842 11760 bytes
SHA-256: 7815594865e688270b7ac02ed5d7cc52e718c5d6a8900341e2c71793bd2bc827
font_02_sfnt_off0000fdd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD4 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176