Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b70ad207e2e253c…

MALICIOUS

PDF

73.0 KB Created: 2021-03-04 02:09:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: aa4b4d2eb50dabed064cea0da9734486 SHA-1: 9aec985427a0303da2bea5b94c8bf4a5b4019a49 SHA-256: 6b70ad207e2e253cfa501b72f87a6272652441d4f0eb3d2bb86d58579e38b067
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/award?keyword=how+to+adjust+rancho+shocks PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408701/normal_5fd3318235d7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428329/normal_5fd39bff26e36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447270/normal_5fed5fe8de94e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488572/normal_5fda407b272ad.pdfIn PDF document text
    • http://astropsychology.website/pozizuviwilalozogudenistoiwn.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/ccgiAia/simple_business_accounting_software_for_mac.pdfIn PDF document text
    • http://repair-foto.ru/ark_aberration_mapw2dx0.pdfIn PDF document text
    • http://igclienteam.com/vshare_free_cracked_iosucded.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484814/normal_5fd8d3ef5460c.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/jcgcWgg/foluvuborokasoletizene.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409254/normal_6016fa88cd6dc.pdfIn PDF document text
    • https://cdn.sqhk.co/teganipuputu/giha4OP/khloe_kardashian_age_net_worth.pdfIn PDF document text
    • https://cdn.sqhk.co/gepabafi/jibxYge/weather_station_model_symbols.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379487/normal_5fe09656ad77e.pdfIn PDF document text
    • https://cdn.sqhk.co/molavagew/dMxHdgd/can_i_use_paint_over_varnish.pdfIn PDF document text
    • https://cdn.sqhk.co/judawube/gehaijS/baganukesubelitin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393755/normal_5ffa7c09aa6b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/android_hamburger_menu_icon_drawable.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/zudegaral.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_off0000e20b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE20B 5188 bytes
SHA-256: 8d2af5f1ab3d930ad6ffde87754b82f9eeaa451daeab27515a49d01a55990ca7
font_01_sfnt_off0000f3bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BD 10344 bytes
SHA-256: 925cf12c682ccbf84ded65f3ecf7c3a50b42e329d5422f987ceb2357de1c0d82