Malicious PDF — malware analysis report

Static analysis result for SHA-256 e954c4608e8a32c0…

MALICIOUS

PDF

100.2 KB Created: 2021-05-19 05:55:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 26dff521ef5cf6d6c8a6e79e044e3d91 SHA-1: 9e81e704c3183e49f2fba3a7abaede9832fa8a29 SHA-256: e954c4608e8a32c04ff26611a81c4b1748cdb0201c1b80430f29931b34783c08
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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://jottigo.ru/strik?utm_term=the+key+of+magic+of+rabbi+solomon+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452608/normal_5ff774fe140fc.pdfIn PDF document text
    • https://pepigapipewoma.weebly.com/uploads/1/3/4/0/134000130/ae91843e.pdfIn PDF document text
    • http://subotufo.22web.org/21725024484.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376621/normal_5fcf616824d45.pdfIn PDF document text
    • http://fiteduwad.22web.org/sovixusarazozibofemara.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481839/normal_5fef4d4b9ab00.pdfIn PDF document text
    • https://pojalurerisufi.weebly.com/uploads/1/3/4/1/134109142/a7c2fc4cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389085/normal_5fcaa574568bd.pdfIn PDF document text
    • https://tejojobowadame.weebly.com/uploads/1/3/0/8/130874570/1004730.pdfIn PDF document text
    • http://vitebim.22web.org/attahiyat_dua_in_tamil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xedovafimolodem.epizy.com/xaneboz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38801082-4f93-4cb7-adfb-4d3866969dc1/how_long_does_dr_brown_microwave_steriliser_take.pdfIn PDF document text
    • http://tavagebobuzopin.epizy.com/88144400207.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b58d35c-8307-4191-9e83-fa3bf4e0d3fe/momiwasil.pdfIn PDF document text
    • http://fagugawuw.epizy.com/gimeguzopad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/988d8b95-421f-438c-960e-db76b23ba796/libro_el_principito_en_ingls_gratis.pdfIn PDF document text
    • http://webekilijonelew.epizy.com/xedemedud.pdfIn PDF document text
    • http://wokasob.rf.gd/xenosamifoxabewofe.pdfIn PDF document text
    • http://wuginafana.epizy.com/felisidasenuvutanifixa.pdfIn PDF document text
    • http://lomonejezatixow.rf.gd/laying_on_of_hands_catholic_answers.pdfIn PDF document text
    • http://revixano.rf.gd/the_tragedy_of_great_power_politics.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14336 5824 bytes
SHA-256: 5dd78595949fa993f0bd352316aa19b2b813f22768c1bf6aee35c77cd0eef1af
font_01_sfnt_off000156de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156DE 12588 bytes
SHA-256: 32d943098b21e6bc37bfa6e3b429825bf99d848799d4c6f0d95a2e7886f224a5

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