Malicious PDF — malware analysis report

Static analysis result for SHA-256 8faee06810ae072f…

MALICIOUS

PDF

71.8 KB Created: 2021-03-07 08:44:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 967d1b8b4b5aba3476d9fab39193e76a SHA-1: 5b8ea2eb6ded3ffb33009b0496f2deb860d0a21c SHA-256: 8faee06810ae072f4ef9cefc94825b44c90786973974049f2b241ff1db2a0460
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 0.9997

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://crophysi.ru/wix?keyword=makita+mac700+pressure+switch PDF link annotation
    • https://cdn.sqhk.co/tovipovo/jOidUwH/93041863143.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470830/normal_602dd127b30e1.pdfIn PDF document text
    • https://cdn.sqhk.co/marivefigus/JibgjLJ/medtronic_peripheral_guidewires.pdfIn PDF document text
    • http://vetobiz.sportsontheweb.net/discrete_and_combinatorial_mathematics_an_applied_introduction_fifth_edition_solution_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/lezebulodiw/XJAopqw/4397818854.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413125/normal_5ff5314c9fe37.pdfIn PDF document text
    • https://cdn.sqhk.co/buzovegom/Sji8BHa/18_awg_power_cord_current_rating.pdfIn PDF document text
    • http://melowew.scienceontheweb.net/kenmore_400_dryer_heating_element_part_number.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446034/normal_602ea6a71ece5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tupopozavagaf.rf.gd/33534819532.pdfIn PDF document text
    • http://pazipinabobon.epizy.com/best_business_analyst_books_for_beginners.pdfIn PDF document text
    • http://godutugogusapa.rf.gd/brother_xr3774_bobbin_tension.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/18440594664.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f996b96-e563-4f60-a00e-31db562e08b7/continuous_compound_interest_worksheet_answer_key.pdfIn PDF document text
    • http://jopavufugas.epizy.com/46480471575.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/zekepigovoriku.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/18486855734.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/mejores_cursos_de_ingles_gratis_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c994721-5556-4ca2-b084-036c75d44452/86423856976.pdfIn PDF document text
    • http://palalujopaxuv.epizy.com/dokoredafevobak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cc7c868-5a91-48a7-b5dd-f8619ce86633/90377643943.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_off0000da21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA21 5524 bytes
SHA-256: 328b8a5d95b1f295905da583bef9b800a267bfa7a6f3e03cebcc91b689571f54
font_01_sfnt_off0000ece7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE7 10904 bytes
SHA-256: 54bbbe913a00056b248b1747954f9ad6c4f1c98dd648b416fa647a4c3671e62c

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