Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7002d7c8c6e4aea…

MALICIOUS

PDF

71.3 KB Created: 2021-03-08 08:31:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bf4d1d6aa8e2d93fc1c7e6cc883bfd01 SHA-1: 28373a086b6ccc9b270981bf514a2663d263e8fa SHA-256: c7002d7c8c6e4aeaf4d7f771c15c3df84336a116bb5754ddb464dcbdf5897112
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://zajinet.ru/award?keyword=angles+worksheets+grade+7+pdf PDF link annotation
    • http://feludekinopotas.scienceontheweb.net/xopikisela.pdfIn PDF document text
    • http://indital.fun/784720133dkwov.pdfIn PDF document text
    • http://ejinaya.com/30613077973e2m2.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/what_does_seeing_the_number_600_mean.pdfIn PDF document text
    • http://agencymedia-ig.com/how_to_use_waterpik_ultra_flosser8r4v9.pdfIn PDF document text
    • http://nibakelenixezas.getenjoyment.net/sarisigukokaxodeg.pdfIn PDF document text
    • http://cupe1.ru/maven_tutorialu0xps.pdfIn PDF document text
    • http://winoorama.site/55756681439iq7ml.pdfIn PDF document text
    • https://cdn.sqhk.co/jezumasulej/igaghcE/kejefinif.pdfIn PDF document text
    • https://cdn.sqhk.co/numavagoko/ViiijEq/gowepuvagototevijer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://caa91486-5fcc-43b7-8b2b-5b817ae85bbe.filesusr.com/ugd/26bbcf_3459118c577d4a05940c4c2e6ffcaa47.pdf?index=trueIn PDF document text
    • https://6680615c-3592-42a6-94f3-b98e474b5330.filesusr.com/ugd/252546_5773eef18ed843e7a412b264e118fc39.pdf?index=trueIn PDF document text
    • https://9b08d158-0e0f-4203-9b31-e1272d977b1c.filesusr.com/ugd/086daf_68b0852b9cb3465aade851959aee1aa6.pdf?index=trueIn PDF document text
    • https://4bf641bf-117a-4913-931f-55e49063997f.filesusr.com/ugd/5befcb_d360a07fe5184df9a1e3373b0311d7ae.pdf?index=trueIn PDF document text
    • https://82656f1f-dd0f-4426-89ca-c5688288f975.filesusr.com/ugd/56de54_3bcff730f8b5487c87ff0f2bb28666d9.pdf?index=trueIn PDF document text
    • https://2d130471-2a64-48ba-87cf-8f1e86c6acad.filesusr.com/ugd/9c43ec_52a7451cad1c40529652283b1b0edcda.pdf?index=trueIn PDF document text
    • https://a9864912-ad24-422b-99f3-2d90f7703507.filesusr.com/ugd/d6af85_6f4b46877c3546be94344478579f41ff.pdf?index=trueIn PDF document text
    • https://ee42ee57-4547-4a8c-8a66-6cccb7f6869d.filesusr.com/ugd/2a9ad2_68caac4b4cdc45d39f6e5fb00498262e.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA0 5528 bytes
SHA-256: b69ae1bf1a018ef10630e94365d455c9eba21704d4f1f66358bb85332ee08aa6
font_01_sfnt_off0000ee84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE84 9900 bytes
SHA-256: 200142857d47404bcabd9f5afd4946f975cd7fea78b3a4e395fcc6487ed5e195

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