Malicious PDF — malware analysis report

Static analysis result for SHA-256 527bd8042353ac31…

MALICIOUS

PDF

70.1 KB Created: 2021-03-06 11:19:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f75704e8c5f96b895a130d96ecc03d15 SHA-1: 70ce101e49c5b2529bac765704dfadc7174a8e0c SHA-256: 527bd8042353ac31e26c0a512855c81208ec6f89f950123d82482c542a769e28
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/wix?keyword=schumacher+10%252F30%252F50a+12v+manual+battery+charger+with+engine+start PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460950/normal_5fd684545b688.pdfIn PDF document text
    • http://goldstein.berlin/61260005526d0116.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457311/normal_602da6f313ea0.pdfIn PDF document text
    • http://ueuniti.website/desiigner_timmy_turner_remix_download9g6p4.pdfIn PDF document text
    • https://cdn.sqhk.co/teforoke/hc1Qn91/copart_auto_auctions_lufkin_tx.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/rfSPxhi/kejun.pdfIn PDF document text
    • http://belkwigs.com/midigumusazodoxuboxajamepmg19e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421038/normal_5ff8abce7e9e2.pdfIn PDF document text
    • http://ulekschool.online/45081504154w8vgk.pdfIn PDF document text
    • https://cdn.sqhk.co/litopozuf/jahfjcj/real_piano_price_philippines.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/sggcnhg/wabiluf.pdfIn PDF document text
    • https://cdn.sqhk.co/mezadisedud/dY0gdoy/21077841213.pdfIn PDF document text
    • https://cdn.sqhk.co/kitobanifamo/qRgfo1n/53281092634.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385028/normal_6007399b94a00.pdfIn PDF document text
    • http://busforpay.online/ajaya_rise_of_kalizkqk8.pdfIn PDF document text
    • https://cdn.sqhk.co/livukigelo/jGbYyif/54208913919.pdfIn PDF document text
    • https://cdn.sqhk.co/vexavudakepa/dpShgjb/quran_in_roman_english_download.pdfIn PDF document text
    • http://axacheat4.xyz/megacraft_pocket_edition_descargarrsr7k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/db59061d-e4dd-4039-9a4a-e0dd5d525695/47303434134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87963ad2-e120-4bd1-bb4c-1d65edaa9cf3/polytropic_compression_formula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9cdf7d0-3aff-4750-8b56-e47aa2763866/vuxuxisekato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37ebcc33-74fa-4b87-ac62-9d05051d0a9e/un_mundo_feliz_de_aldous_huxley_analisis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b212d99-f0c9-4358-b842-d779d776a46c/vujijabilosotulelival.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_off0000d076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD076 6360 bytes
SHA-256: 7f1ae846940fbb17802f4c7cc03b68c38d5c0cdd3f1c2c7da4b3a6be5bf6ca4c
font_01_sfnt_off0000e611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE611 10560 bytes
SHA-256: 6a1229e73743a74c688d42b623b406a0a4b4e915ee3c5564f2fe5e151f233e3f

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