Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b57a019eec99ad…

MALICIOUS

PDF

58.3 KB Created: 2021-04-02 23:33:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 287507e3fae7a64b1d52c16f12b8ad82 SHA-1: 8755f88f4930359b1c50a0601fe1a648434fd693 SHA-256: 10b57a019eec99ad7ac16b7bd510def75629e0f31c6b3c6e9b8592dcb49b88c0
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://dafemum.ru/strik?utm_term=nordictrack+a2350+for+sale', is directly associated with the document's content. While no scripts were explicitly extracted, the presence of numerous external links suggests an attempt to manipulate search engine results or redirect users to potentially malicious websites, aligning with a spearphishing attachment tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7267

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://dafemum.ru/strik?utm_term=nordictrack+a2350+for+sale
    • http://memenakamawe.iblogger.org/production_capacity_planning_excel_template.pdf
    • http://cmb-accueil.com/bagutorogajovikarojabisbvmx.pdf
    • http://opt05.ru/ligadinegebusutefitm1rg.pdf
    • https://birirewenojitu.weebly.com/uploads/1/3/0/8/130813362/tojupazemixiluw_soviranije_juvezemogulikot.pdf
    • http://hotsales-com.xyz/191841546960nhx9.pdf
    • https://gupapuna.weebly.com/uploads/1/3/4/7/134726568/9616674.pdf
    • https://fodumalape.weebly.com/uploads/1/3/2/6/132695584/5c0206a.pdf
    • https://gekubunog.weebly.com/uploads/1/3/4/2/134235395/gekoperavorokisu.pdf
    • https://s3.amazonaws.com/retobifulipo/86538586763.pdf
    • http://segixiw.epizy.com/eliminar_virus_adware_manualmente.pdf
    • https://s3.amazonaws.com/rewepalazamiso/62518607774.pdf
    • http://sixeres.epizy.com/27233726599.pdf
    • https://s3.amazonaws.com/lumixi/34564762068.pdf
    • http://semewovutiwo.rf.gd/hp_officejet_4500_print_cartridge_problem_tri-color.pdf
    • https://s3.amazonaws.com/bejokazemur/game_blade_and_soul_vietnam.pdf
    • https://s3.amazonaws.com/datarofapakil/google_translate_app_for_iphone.pdf
    • https://s3.amazonaws.com/zopenave/beacon_health_options_claim_form_address.pdf
    • https://s3.amazonaws.com/moduxanakuri/jack_and_the_beanstalk_short_story_moral_lesson.pdf
    • https://s3.amazonaws.com/nutanigonu/delegation_poker_cards.pdf
    • https://s3.amazonaws.com/navoburarovada/91336411114.pdf
    • https://s3.amazonaws.com/zomuzigo/derbyshire_police_report_a_crime_online.pdf
    • http://jexonuwunow.epizy.com/nokia_asha_video_er.pdf

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