Malicious PDF — malware analysis report

Static analysis result for SHA-256 004a3f21e1bdd708…

MALICIOUS

PDF

75.3 KB Created: 2021-02-25 17:51:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: cf2bc7bd430dfa90044f0db9fdb569c3 SHA-1: 5b77b39096561fe762867effcd0fab81a0cded79 SHA-256: 004a3f21e1bdd708bfcf8e50d340960ac7c1ba266956c0274b86011331aba589
126 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
  • 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.
  • 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/strik?utm_term=how+to+make+a+garden+seat+out+of+pallets PDF link annotation
    • http://funuretebinuzos.iblogger.org/chief_information_security_officer_salary_nyc.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/Bkpvtgh/kotovipub.pdfIn PDF document text
    • https://konomotawet.weebly.com/uploads/1/3/1/3/131379362/zidezuwan.pdfIn PDF document text
    • https://cdn.sqhk.co/voxobidivel/glCTibO/speed_of_ninja_h2r.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/gegatisejegeragoku.pdfIn PDF document text
    • http://noroxutapokuz.iblogger.org/laviduka.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/iblggmc/17958956803.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sirilamezowi.epizy.com/purufefarupeduv.pdfIn PDF document text
    • http://japorununatoj.epizy.com/where_are_reznor_heaters_made.pdfIn PDF document text
    • http://duvodix.myartsonline.com/96825443568.pdfIn PDF document text
    • http://vubimefiz.epizy.com/begf_101_question_paper_june_2016.pdfIn PDF document text
    • http://jopiwutipav.epizy.com/hemothorax_guidelines_bts.pdfIn PDF document text
    • http://jisixapuwalim.epizy.com/bimegavawajatuwew.pdfIn PDF document text
    • http://bexotomilobawa.epizy.com/nunobomedu.pdfIn PDF document text
    • http://rafodize.rf.gd/affine_transformation_matrix_2d.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_off0000ea39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA39 5476 bytes
SHA-256: 5e797e64a97c506c60ba92e2adc11253f1773dad35d2a2050db5de0b2b5666b0
font_01_sfnt_off0000fcd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD7 10440 bytes
SHA-256: 7dd30a724d64cf333873280efa9b29ef115b9047fc1f7de5e35473ef70b353b2