Malicious PDF — malware analysis report

Static analysis result for SHA-256 727d13ad9000901d…

MALICIOUS

PDF

71.3 KB Created: 2021-02-22 07:11:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b07ee4f76ebce77508318c8cbaceab41 SHA-1: 62c14e0e077833e0a9b42782be89a8d2cf168193 SHA-256: 727d13ad9000901dac74e5dbcfba1e438752f7ed0bffd82b6f449f86998566f0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=guitar+hero+3+custom+songs+ps3 PDF link annotation
    • https://cdn.sqhk.co/sedazozesufu/TfihYic/9487406817.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/isshhjM/ivan_the_silverback_gorilla_book.pdfIn PDF document text
    • https://femobideja.weebly.com/uploads/1/3/4/7/134735935/botajatudipilekow.pdfIn PDF document text
    • https://cdn.sqhk.co/butituguxur/d9Kgchh/fapatale.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/1Pjhm2t/rirarer.pdfIn PDF document text
    • https://mopotepawo.weebly.com/uploads/1/3/0/7/130738720/3b33558a9fe957.pdfIn PDF document text
    • https://zowadadevifu.weebly.com/uploads/1/3/4/5/134597758/bedereneladakotesito.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374366/normal_5fc999c0a1f12.pdfIn PDF document text
    • http://zenafek.iblogger.org/diablo_2_median_xl_ultimative_assassin_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450630/normal_5ffc182414d32.pdfIn PDF document text
    • https://kisuvali.weebly.com/uploads/1/3/1/1/131163683/7473942.pdfIn PDF document text
    • http://vobasexukux.iblogger.org/printable_calligraphy_alphabet_practice_sheets.pdfIn PDF document text
    • https://cdn.sqhk.co/seworani/jhJnjb8/bounce_back_quotes_images.pdfIn PDF document text
    • https://nazoxuja.weebly.com/uploads/1/3/2/8/132814973/9609af3f7cf40ec.pdfIn PDF document text
    • https://rinadulig.weebly.com/uploads/1/3/0/7/130739308/7213528.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramivigemotaf.epizy.com/pobalexage.pdfIn PDF document text
    • http://doruzedom.epizy.com/19895843303.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_off0000db6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB6F 5508 bytes
SHA-256: c05ec4eeaefcf082909a7e75f708568867a7bcf3fd18dc989547a9c084dcf066
font_01_sfnt_off0000ee08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE08 9820 bytes
SHA-256: dd2900aa43fab6731935811b92082ade23a024402452b76d1322bf1de1c5a699

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