Malicious PDF — malware analysis report

Static analysis result for SHA-256 e603d26b4e9cc9d4…

MALICIOUS

PDF

78.3 KB Created: 2021-02-22 00:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: e607c0e44e239dc8951b0059e0d4d408 SHA-1: 457fe14da334e05fbe8efa40f85c4f16b8e544dc SHA-256: e603d26b4e9cc9d4d1b0e35bfd9c53addd3f2c922c4e8e4fdef60483d2ad530e
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically identified as a link farm on disposable hosting, and another leading to a suspicious domain 'baarspo.ru' with a search query. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=best+magnetic+gps+tracker+for+car PDF link annotation
    • http://dotugigobeje.iblogger.org/informed_consent_meaning_in_medical_terms.pdfIn PDF document text
    • http://rakajipof.22web.org/whatsapp_golden_apk.pdfIn PDF document text
    • http://namelesssouth.xyz/fundamentals_of_case_management_prach2si8.pdfIn PDF document text
    • http://simodotufaz.iblogger.org/metformin_anxiety_side_effect_pcos.pdfIn PDF document text
    • http://goossyy.online/palepujaligixodupiwedubod95t2i.pdfIn PDF document text
    • http://persequenteamsohbet.com/48949548176hkyjf.pdfIn PDF document text
    • http://mutodute.22web.org/html_form_method_delete_example.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mixomexazuvoxod.rf.gd/extent_report_with_all_dependency.pdfIn PDF document text
    • http://xofafatererowu.rf.gd/cd_completo_raa_negra.pdfIn PDF document text
    • http://zukisofom.epizy.com/97928528459.pdfIn PDF document text
    • http://zititerawori.epizy.com/rindu_berat_camelia_malik.pdfIn PDF document text
    • http://wuwomuwudawim.epizy.com/pes_football_game_for_mobile.pdfIn PDF document text
    • http://ketugida.rf.gd/puvaxarobikifalir.pdfIn PDF document text
    • http://zefifimagami.epizy.com/mavedadugulej.pdfIn PDF document text
    • http://kubapesopujix.rf.gd/how_to_cook_a_turkey_in_a_roaster.pdfIn PDF document text
    • http://denuvadejo.rf.gd/levels_of_hell_meme_template.pdfIn PDF document text
    • http://jowesokawebape.epizy.com/adolescent_psychological_evaluation_near_me.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_off0000f51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51E 5416 bytes
SHA-256: c57c45e3006b5ef75370c77d7f1a3392db364f7d2c2efb50b39dc914299a3ac3
font_01_sfnt_off0001077e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1077E 10708 bytes
SHA-256: 644edb08fa0bcddd81cc3d4a5ff1480eea4a746fb1f321507fb25d1a57698f10

Open this report in the interactive analyzer, or submit your own file for analysis.