Malicious PDF — malware analysis report

Static analysis result for SHA-256 708590c9e6ca1a6b…

MALICIOUS

PDF

72.8 KB Created: 2021-03-05 08:37:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7747b0f6725d314f3f02aefb4bbadd1c SHA-1: 927984dcabbc457f850251c8bfea008c5e69d3e7 SHA-256: 708590c9e6ca1a6b2307ede31eb6c7267a54206124d211d4e18979e854d7c3a9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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://vilenefex.ru/wix?keyword=probability+independent+and+dependent+events+worksheet+with+answers PDF link annotation
    • http://topcreditreport.info/information_processing_questions_and_answershc4o6.pdfIn PDF document text
    • http://tozufokoxogo.22web.org/witobutafume.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464871/normal_602e0d06031bd.pdfIn PDF document text
    • http://kawlites.online/lavexukutotorepurefonodewr9p9m.pdfIn PDF document text
    • http://pelubexeto.getenjoyment.net/australias_own_weber_q_cookbook.pdfIn PDF document text
    • http://kozidozilujivox.getenjoyment.net/8659671381.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473419/normal_5fdeedb38e586.pdfIn PDF document text
    • http://xufamorazogubov.sportsontheweb.net/remington_700_sps_tactical_stock_upgrade.pdfIn PDF document text
    • http://wubarikenokepi.iblogger.org/michael_jordan_the_life_roland_lazenby_review.pdfIn PDF document text
    • http://phtech.site/macbeth_act_2_scene_one_summaryfe7pb.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/huffy_bike_rack.pdfIn PDF document text
    • http://stebsmeh.space/monkey_d_luffy0bk9y.pdfIn PDF document text
    • http://8gusevshop.website/32870159342aouz1.pdfIn PDF document text
    • http://wirodapupoz.iblogger.org/xelojiba.pdfIn PDF document text
    • http://sowipilarow.mygamesonline.org/sch_binh_php_tn_t_v_36_k.pdfIn PDF document text
    • http://gapekiza.iblogger.org/how_to_start_a_cause_and_effect_essay_examples.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477864/normal_5fc8d25a9a035.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420597/normal_600e0806418e3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/94a62691-a8fe-4aa5-bcea-03a21f117fa6/38464372544.pdfIn PDF document text
    • http://megigezorozo.atwebpages.com/1994_honda_accord_ex_radio_code_entry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5131d82d-0c9f-488a-937e-944c85d49a04/how_to_play_sims_3_on_macbook_air.pdfIn PDF document text
    • http://wuragumok.atwebpages.com/74931780373.pdfIn PDF document text
    • http://valupakukav.myartsonline.com/what_does_kcal_mol_mean_in_calories.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_off0000e006.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE006 5508 bytes
SHA-256: 51313eb1c1e71794405410c4fe80db6aac0184b7d1e73b1da5bfc27f849f0e60
font_01_sfnt_off0000f2c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C8 10132 bytes
SHA-256: 874ccfff65bf0a959e787474496987c377acc0249df0000c2f8a951f076ec972