Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa609c3468b56367…

MALICIOUS

PDF

74.7 KB Created: 2021-01-23 12:12:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6dacb90fb4f967c01537d83b222a2ff7 SHA-1: 89ea4aa5f5051f4d538dd54df844f6d3f10c87f7 SHA-256: fa609c3468b563672f9da1fde89102814189fad2850ed80007cbfb224e9113c3
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/aws?utm_term=app+android+per+film+streaming+gratis In PDF document text
    • https://zexebofefibem.weebly.com/uploads/1/3/5/3/135303963/5976767.pdfIn PDF document text
    • http://gujafitixa.iblogger.org/sozufitonateguzopaxoled.pdfIn PDF document text
    • https://texoxarisozitew.weebly.com/uploads/1/3/0/9/130969357/wixifawuto-zuxumururu-wurerajafokiti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500669/normal_5fd72c7473e95.pdfIn PDF document text
    • https://vexefanakaxaki.weebly.com/uploads/1/3/4/8/134871487/puminixowakegopi.pdfIn PDF document text
    • https://dodilepu.weebly.com/uploads/1/3/4/4/134444379/6587785.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/labitajaxatufib/15008609767.pdfIn PDF document text
    • http://mafasegu.epizy.com/chemistry_placement_test.pdfIn PDF document text
    • http://viwuleraxukopiz.epizy.com/22791139090.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/xunojumepofuzifube.pdfIn PDF document text
    • http://fewajun.epizy.com/86368478234.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/mp4_music_video_websites.pdfIn PDF document text
    • http://verirajoxa.epizy.com/towidororezazumadibuvober.pdfIn PDF document text
    • http://fojamemu.epizy.com/accurate_information_in_french.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/jetibubuwu.pdfIn PDF document text
    • http://magivaxinel.rf.gd/axillary_block_ultrasound_guided.pdfIn PDF document text
    • http://pimibini.epizy.com/banda_aga_banda_song.pdfIn PDF document text
    • http://numebazo.rf.gd/rutenujefepafokugejetaba.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_off0000e664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE664 5348 bytes
SHA-256: 0cf019cafb35befd09cfec1cfa74cda72eb0a8393a8c0477b24415dbd8c49bfa
font_01_sfnt_off0000f884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF884 10940 bytes
SHA-256: 85b74e76ad44c171fe58dc2ae35abc4b757bbd4e20829ded900fa3bc940f9125

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