Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ab3f52424452ef7…

MALICIOUS

PDF

72.8 KB Created: 2021-02-28 06:56:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 45da0678e1c45dfaecbe0d65ebfb6da8 SHA-1: 8ce401c00509dab1cda305ca179a3cf378bb6adf SHA-256: 1ab3f52424452ef79c181db5177bac09fa53447bc694a1f8ae8806014575921e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/award?keyword=matematicas+financieras+capital+concepto PDF link annotation
    • http://uaportal.site/25715536522hv4nu.pdfIn PDF document text
    • https://xunumiselodaz.weebly.com/uploads/1/3/0/7/130775676/pomidusix.pdfIn PDF document text
    • https://cdn.sqhk.co/xijogedobu/ibEbPjj/elite_motos_2_mod_dinheiro_infinito.pdfIn PDF document text
    • https://pimakesoxokozo.weebly.com/uploads/1/3/4/0/134041299/9779317.pdfIn PDF document text
    • https://jerepubiz.weebly.com/uploads/1/3/1/6/131606505/2fed1de762e80.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/ggjhbjg/20397748072.pdfIn PDF document text
    • https://koruguliduni.weebly.com/uploads/1/3/4/8/134896859/bemejipag_mojopotumag_lexepe.pdfIn PDF document text
    • https://cdn.sqhk.co/pojuwudedi/bcXHyjc/lullaby_songs_for_babies_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rigepasemapa/bjegfif/sijupi.pdfIn PDF document text
    • http://opssmall.space/binary_options_price_action_strategyyutmy.pdfIn PDF document text
    • https://xefakiradu.weebly.com/uploads/1/3/1/8/131856624/2359740.pdfIn PDF document text
    • http://icily.xyz/2006_bmw_330xi_battery_specificationsbfp85.pdfIn PDF document text
    • http://lajenasuwo.iblogger.org/kotal_kahn_guide_mk11.pdfIn PDF document text
    • http://espaceabonnes.com/83537909810n9jkx.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/tjcjchg/77690926565.pdfIn PDF document text
    • https://cdn.sqhk.co/gufemazibafi/ggihRhe/wix_customer_support_number_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rarezutawuwelam.epizy.com/shrimp_fried_rice_nutritional_information.pdfIn PDF document text
    • http://sokivuj.epizy.com/access_2007_database_templates_free.pdfIn PDF document text
    • http://dunupepemogakiw.epizy.com/amazon_the_poets_companion.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_off0000e022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE022 5168 bytes
SHA-256: 66e8d368e0ec65a9bc27b78693252f6536cbe1cc7fde620fbb53e7bb08154ba3
font_01_sfnt_off0000f1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AC 10588 bytes
SHA-256: 8b88c5bf02fd7b565784f16eef8cc58808da8eccf89711180ec0b7c07826ead9