Malicious PDF — malware analysis report

Static analysis result for SHA-256 e697f2f4fc375701…

MALICIOUS

PDF

69.0 KB Created: 2021-02-25 07:01:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 35b3846b6ebe792b11e519ce3c8fbee8 SHA-1: 2d25ae3d79c0e54145cc7801e756405af75d21b2 SHA-256: e697f2f4fc375701c6907f849950cdca870eaf7dd196840f5f8338a5916204fd
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/123?utm_term=autocad+electrical+2020+black+book+pdf+free+download In PDF document text
    • http://samoe-samaya.ru/loxumxyzf3.pdfIn PDF document text
    • http://geekcods.com/10038982442luxkb.pdfIn PDF document text
    • http://copyright-services-us.com/adverb_of_place_worksheets_for_grade_1enowa.pdfIn PDF document text
    • http://lotsmen.com/47570146202xfo7o.pdfIn PDF document text
    • http://fabulouss.space/ryobi_bt3000_extension_tablerlu0a.pdfIn PDF document text
    • http://namedaun.fun/south_park_fractured_but_whole_nudity0248w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413570/normal_6029fe77acd3f.pdfIn PDF document text
    • http://nipojugotav.iblogger.org/quotes_on_supernatural_powers.pdfIn PDF document text
    • http://5coupons.info/826412996443gh5l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414672/normal_6007d206a67bf.pdfIn PDF document text
    • http://hermidkovo.info/wokoxukunibeyi0i0.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/gazivemon/firefox_quantum_portable.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/devusozoximupaloro.pdfIn PDF document text
    • http://ripivetozevulu.epizy.com/sokunow.pdfIn PDF document text
    • http://povazidiv.epizy.com/nejubidebafixipajujemigu.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/rotibarodaxizorufetupivu.pdfIn PDF document text
    • http://tejusadesivuti.epizy.com/letter_from_birmingham_jail_questions_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/dumajuxifu.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_off0000d002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD002 5532 bytes
SHA-256: 31d6de26643a04274b621671ccfd5d6d1adcc466830baa6c1a4c3427627f67f5
font_01_sfnt_off0000e2ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2ED 10416 bytes
SHA-256: 87b1f71b06044bec7b93957b37844af4e9197ceabec6d360055cd8f1520d6098