Malicious PDF — malware analysis report

Static analysis result for SHA-256 3296ca2ffde3e419…

MALICIOUS

PDF

68.4 KB Created: 2021-02-14 07:05:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d014884936a29a3006988718b49a0735 SHA-1: c12e9870bae847b1510fc7306133c7de4e8999ec SHA-256: 3296ca2ffde3e4191e961da273816bbcc41e8c6299ef6f92e5447be0d218a723
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wix?keyword=plastic+storage+cabinets+walmart PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422382/normal_600b72bc2d234.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482848/normal_600577c69eddb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369920/normal_5fdea05ba45ea.pdfIn PDF document text
    • https://susokeruno.weebly.com/uploads/1/3/4/6/134656617/xivepodapatuv.pdfIn PDF document text
    • https://dirifulezidume.weebly.com/uploads/1/3/2/7/132740871/rubusubopogod-xomabifunapike-radewefimutu.pdfIn PDF document text
    • https://mikudone.weebly.com/uploads/1/3/4/3/134370159/1fdf00a1.pdfIn PDF document text
    • https://pajenugemin.weebly.com/uploads/1/3/4/6/134677616/468656.pdfIn PDF document text
    • https://fasukawoj.weebly.com/uploads/1/3/1/4/131453618/11e0a7.pdfIn PDF document text
    • https://vojumemij.weebly.com/uploads/1/3/4/4/134473557/jonuzijuwuf.pdfIn PDF document text
    • http://inostrana.com/pejetisye6mn.pdfIn PDF document text
    • https://pusesame.weebly.com/uploads/1/3/4/6/134662227/wonove.pdfIn PDF document text
    • https://dalenorilesa.weebly.com/uploads/1/3/4/8/134858788/67681f33a3.pdfIn PDF document text
    • https://taxubixud.weebly.com/uploads/1/3/4/7/134760406/2dc33a49.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450154/normal_5ff1876db44a2.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/ravuxudibure/3851435389.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/wazodafapujoma.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/jumab.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/pufero.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/circular_motion_and_centripetal_force_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/jazipunerebivowipi.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/9744505386.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_off0000cf5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF5D 5352 bytes
SHA-256: 6a87e64f8bf1fee8b2d7405f72f8c244e3f0c92b1e7419b50409e633c8508baa
font_01_sfnt_off0000e18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE18D 10096 bytes
SHA-256: b3d8eb544f5c2cbaee7c2f8f40446bfb734bd6987693a1149d4d683ff4e0926d

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