Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4090cc42c11f29f…

MALICIOUS

PDF

67.4 KB Created: 2021-02-15 22:36:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9d7e3ff1ed40432231314724afb3ca19 SHA-1: 629df0f19d1c46f16da453c3b086033b3c44b7bf SHA-256: e4090cc42c11f29f14dc3098b8a74f1008263a23684cfc4c29799c0891c04fa8
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.
  • 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/wix?keyword=1998+chevy+cavalier+owners+manual In PDF document text
    • https://bujovuve.weebly.com/uploads/1/3/0/7/130738596/vutav.pdfIn PDF document text
    • https://lulegosepo.weebly.com/uploads/1/3/0/9/130969478/9294187.pdfIn PDF document text
    • http://copyrighthelpbusiness.net/junotuzojapi3gv.pdfIn PDF document text
    • http://mavitrade.com/tuzomexelegilizuyw95c.pdfIn PDF document text
    • http://lnstagramlivesupportcenter.com/american_and_british_english_words_listfbvya.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/aAjgggY/zoxiripaxabenijotopanaj.pdfIn PDF document text
    • http://prod-fruit.space/dolce_amore_song_your_love_audioekhoe.pdfIn PDF document text
    • https://katalajoguv.weebly.com/uploads/1/3/2/7/132740778/9718608.pdfIn PDF document text
    • http://adr-media.work/32124671051m0s05.pdfIn PDF document text
    • http://otshelnik.net/acupuntura_auricular_francesa7s76k.pdfIn PDF document text
    • http://basvuruizleme.online/leckie_and_leckie_higher_french_success_guided5odz.pdfIn PDF document text
    • http://telemprom.xyz/netbeans_8._0_with_jdki56tq.pdfIn PDF document text
    • https://benanuvez.weebly.com/uploads/1/3/0/8/130813453/zunorebixaz.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/sepovutapakogaf/fakujifufob.pdfIn PDF document text
    • http://zujexig.epizy.com/69514896046.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/kingdom_two_crowns_guide_hermit.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/57109532213.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_off0000c900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC900 5600 bytes
SHA-256: 355657e1f09c48481a919fec311bc7a79c39721e936c0bdbf6082e31d868147c
font_01_sfnt_off0000dc05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC05 10768 bytes
SHA-256: 0ef84afccd17456ebd8514391e07e6be2c77fff9e9dd8f4ce597764f5dc5fb71