Malicious PDF — malware analysis report

Static analysis result for SHA-256 62e7fa2f28776a99…

MALICIOUS

PDF

66.3 KB Created: 2021-03-01 16:39:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f6c6369a341fa4a6e20b93f9d9a95e34 SHA-1: 0cbff44caf60c00bad514aa3759f059b6af4626e SHA-256: 62e7fa2f28776a9902b82c139e67e1d49d5440af7ef9fc9bbd13ce44afa9b1fa
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=ocean+state+job+lots+portsmouth+nh In PDF document text
    • http://lukofaduxaxa.22web.org/couchsurfing_travel_app_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/gehhGhd/this_means_war_movie_soundtrack.pdfIn PDF document text
    • http://xupenirulavep.iblogger.org/piloliwukazirut.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/0R2QjcJ/39538233207.pdfIn PDF document text
    • https://cdn.sqhk.co/koletexun/gcgewih/xetikedukoxak.pdfIn PDF document text
    • http://semazolowogafoj.22web.org/pic_collage_software_for_pc_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wedowetaso/hTxvuad/soxenusubademaruvone.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/massachusetts_superior_court_rule_9ae.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/84002863786.pdfIn PDF document text
    • https://cdn.sqhk.co/nixivezez/cjcoijb/scrap_copper_prices_today_per_pound.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramapenutizawa.epizy.com/australia_passport_application_form.pdfIn PDF document text
    • http://vugapadilubokis.epizy.com/arduino_atmega32u4_datasheet.pdfIn PDF document text
    • http://fapafefimu.rf.gd/84297771612.pdfIn PDF document text
    • http://bevunogigofijag.rf.gd/sbi_online_application_form_challan.pdfIn PDF document text
    • http://nilorarikaz.rf.gd/article_title_format.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_off0000c7de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7DE 5416 bytes
SHA-256: dc6f8aa5bd806737f47ab89678f2aca44608c1056f6bf3566cbfb0f0ccfad464
font_01_sfnt_off0000da1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1A 10060 bytes
SHA-256: 6d64144230ae941804b6abba631c201bde2dc83f1b4ece46c72cebbaeb793497