Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba652f48e097ca9e…

MALICIOUS

PDF

76.6 KB Created: 2021-03-21 12:11:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e7c7f01c513f5140397165a6918742fb SHA-1: 987de66f88a2c61e23c3c55e6d34dd66dc059bb5 SHA-256: ba652f48e097ca9e66b5a9be2f0171cdd13aef0830d75faa1b32e05b46087903
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://botokaw.ru/strik?utm_term=delta+portable+mini+crib+instructions PDF link annotation
    • http://eurofamily.pro/fifty_shades_darker_songs_mp3_download_free8pmdo.pdfIn PDF document text
    • http://waparudadip.mywebcommunity.org/entrepreneurship_development_in_nigeria.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408981/normal_603c51de603d6.pdfIn PDF document text
    • http://thechambre.xyz/free_printable_may_2018_calendar_templatehw4ul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481527/normal_5fcf06cf2668d.pdfIn PDF document text
    • http://tiriruno.sportsontheweb.net/65765045587.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370280/normal_6018a4c4d7dd0.pdfIn PDF document text
    • http://viteroludobano.mypressonline.com/halo_the_fall_of_reach_book.pdfIn PDF document text
    • http://jakor.pro/how_do_you_pair_a_logitech_wireless_keyboardnezw5.pdfIn PDF document text
    • http://zonitupupafof.sportsontheweb.net/sony_alpha_a6500_specifications.pdfIn PDF document text
    • http://reduslim-italiaoficial.site/52684765578dbh0m.pdfIn PDF document text
    • http://tradebot.space/social_behavior_mapping_worksheet2rfkj.pdfIn PDF document text
    • http://app-3null.com/25187939379kt7ty.pdfIn PDF document text
    • http://futajef.medianewsonline.com/dalexijadavufiwuragov.pdfIn PDF document text
    • http://dajexori.mypressonline.com/nagugeg.pdfIn PDF document text
    • http://topafigo.mypressonline.com/39247264244.pdfIn PDF document text
    • http://verifybadgehelp.com/53699888234dfxym.pdfIn PDF document text
    • http://everydayy.fun/plc_panel_wiring_diagramiktj4.pdfIn PDF document text
    • http://kunutudusoxa.mywebcommunity.org/dipenip.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/wimofoloxobovitujinagodip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446638/normal_60497a2f42cd6.pdfIn PDF document text
    • http://pedalini.club/annabel_lee_analysis_poem3svxw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://refusunono.onlinewebshop.net/viloxaxekixiludokemew.pdfIn PDF document text
    • http://korofituzuxigu.onlinewebshop.net/arm_assembly_language_programming_with_raspberry_pi_using_gcc.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/brother_printer_mfc-j5910dw_manual.pdfIn PDF document text
    • http://bidusibebawuz.onlinewebshop.net/hunger_games_book_one.pdfIn PDF document text
    • http://matewedidoxeber.onlinewebshop.net/83087811776.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_off0000edc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC3 5220 bytes
SHA-256: 0e0dfcb4a4091f8abd7a7d4d520801ec3a8ba782772a136b52ee69412ccb575e
font_01_sfnt_off0000ff6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6C 10920 bytes
SHA-256: f3adc672ef49d55ad5d6de92650309993d922fbc0eb8939d9a5b240f787030c4

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