Malicious PDF — malware analysis report

Static analysis result for SHA-256 57406c3fc4612216…

MALICIOUS

PDF

70.2 KB Created: 2021-02-24 19:30:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 58c1c32d98c79a9874dab968d9ebeb39 SHA-1: 213d8647dadeaf1c5ba70cb9a288525f82e8b9ba SHA-256: 57406c3fc46122165a6e9bc9a8d3616aadba919413fde8e693427ccf26a4822b
126 Risk Score

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://maypoin.ru/wix?keyword=killer+cam+apk PDF link annotation
    • http://naropiwazufilu.22web.org/decimal_on_a_number_line_worksheet.pdfIn PDF document text
    • https://xajevopo.weebly.com/uploads/1/3/2/6/132682124/lebikibazebiwidafoti.pdfIn PDF document text
    • https://cdn.sqhk.co/zalivelo/hell3jg/jw_library_para_macbook.pdfIn PDF document text
    • https://cdn.sqhk.co/bopibege/hgcMqT6/bloons_tower_defense.pdfIn PDF document text
    • https://duzopuxezofuj.weebly.com/uploads/1/3/1/3/131382696/8778950.pdfIn PDF document text
    • https://cdn.sqhk.co/bisuligiga/Ad5ibhg/falilizudejewifabe.pdfIn PDF document text
    • http://magnetfix.store/clinique_sheer_shimmer_cityblockk7euk.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/whcghhh/hobby_lobby_stores_hours.pdfIn PDF document text
    • https://muxiduxipa.weebly.com/uploads/1/3/5/3/135319221/3000806.pdfIn PDF document text
    • https://barobinamad.weebly.com/uploads/1/3/4/7/134756413/tixeduxom.pdfIn PDF document text
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/majisasuw-vipilobun-vorafori.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jojisoxig.epizy.com/modul_belajar_bahasa_mandarin.pdfIn PDF document text
    • http://defisatum.epizy.com/the_informant_2009_imdb.pdfIn PDF document text
    • http://gojupugifoliru.epizy.com/msi_970a-g46_user_manual.pdfIn PDF document text
    • http://kazoverowagodi.epizy.com/konelurasubetefigik.pdfIn PDF document text
    • http://fajesunuk.rf.gd/bibtex_online_report.pdfIn PDF document text
    • http://jusaxokipumata.rf.gd/physio_exercises_for_frozen_shoulder.pdfIn PDF document text
    • http://fukijudetoj.epizy.com/kogesewotovesepiz.pdfIn PDF document text
    • http://sitikaf.epizy.com/android_app_health_check_up.pdfIn PDF document text
    • http://vutagefen.epizy.com/8003066628.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_off0000d794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD794 4932 bytes
SHA-256: cc6b7cce77956168f438a748209858d9af1e77fa663526674d6c501c66ef7e0c
font_01_sfnt_off0000e847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE847 10240 bytes
SHA-256: 805aa0337d818ec279331d1ae84d3d4378abd89295588e280c9916ef9e523073