Malicious PDF — malware analysis report

Static analysis result for SHA-256 92fd832e9e52eb7d…

MALICIOUS

PDF

212.1 KB Created: 2021-03-29 04:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 28c896839a28248acc2f904e0a4a9755 SHA-1: 630b81d33b81c2aa875e2dae9c1db765f9ccf79a SHA-256: 92fd832e9e52eb7d1874f7b1d0e7bc5056e9246b68613ae36c7821e0c8c94ccd
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI that redirects to a suspicious domain, identified as a potential phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of a redirector link suggests an attempt to lead the user to a site designed for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://jacksth.ru/123?utm_term=bhojpuri+song++video+2018 PDF link annotation
    • http://dress-russia.ru/is_your_facebook_account_recovery_code_emailpnw8v.pdfIn PDF document text
    • http://nonly.xyz/how_to_draw_animations_for_beginners10udy.pdfIn PDF document text
    • http://ygrash.website/cessna_337_super_skymaster_service_manualgodsw.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/bWifhd8/65377923601.pdfIn PDF document text
    • https://tefovaxosu.weebly.com/uploads/1/3/1/1/131163863/zegowik.pdfIn PDF document text
    • https://pekatube.weebly.com/uploads/1/3/5/3/135393066/e1515.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463277/normal_600f9354d5f37.pdfIn PDF document text
    • http://allerlo.xyz/73855118243k7jiq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496015/normal_601f0c94cba20.pdfIn PDF document text
    • http://naturmilans.fun/retinopatia_por_oxigeno_prematuros0p87u.pdfIn PDF document text
    • http://dhl-order.info/63568753099qrv4l.pdfIn PDF document text
    • https://cdn.sqhk.co/rasetiwulipu/jCaHhjc/kung_fu_do_fighting_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470027/normal_5fd672437e4f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449399/normal_5fd0bcd6a6ef7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5fe92620c7019.pdfIn PDF document text
    • http://sokolov.fun/childhood_obesity_goes_global_ielts_reading_answers70l3l.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/egcDieM/89343312347.pdfIn PDF document text
    • http://reawont.online/how_to_use_amazon_echo_2nd_generation7aqvw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lozunina.epizy.com/28785724981.pdfIn PDF document text
    • http://solujenujaki.epizy.com/kosazakonireti.pdfIn PDF document text
    • http://vegawududabuz.rf.gd/51425421082.pdfIn PDF document text
    • http://gozotonitiki.epizy.com/lumamuge.pdfIn PDF document text
    • http://lejaxofin.epizy.com/aristotle_metaphysics_book_1_summary.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_off000309d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309D8 5684 bytes
SHA-256: 707c3e19e884ac4dd5d17e3d6d104923b60e9d6627d057d02f103b776872a6a7
font_01_sfnt_off00031d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D48 10996 bytes
SHA-256: 878181f693f8cc1e6577616e1f03319259d0d1248e9191697075bd7170672547

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