Malicious PDF — malware analysis report

Static analysis result for SHA-256 17988642211a696c…

MALICIOUS

PDF

73.0 KB Created: 2021-02-15 12:54:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 50d791af9b6d8b915fdfa9bec7f9efdb SHA-1: 683c4696377ddef8e2608b2b1271567e516dec07 SHA-256: 17988642211a696c9c08e0ec9413a55fa37dd6913bb7980a515a8d3c0af78681
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://bologen.ru/wix?keyword=rick+jackson+jackson+healthcare PDF link annotation
    • http://artemk.ru/number_pattern_worksheets_grade_7626mh.pdfIn PDF document text
    • http://onlajn-kassa.ru/97751966731fipbq.pdfIn PDF document text
    • http://goxakawelapa.22web.org/wavozuzuboxowenudidi.pdfIn PDF document text
    • http://nijuwebil.iblogger.org/82204556629.pdfIn PDF document text
    • http://jofarofuwudeveb.66ghz.com/main_barsane_ki_chori_dj_song.pdfIn PDF document text
    • http://sellforce.ru/don_t_touch_the_spikes_high_scoreyc4sy.pdfIn PDF document text
    • https://guxofoxevi.weebly.com/uploads/1/3/4/7/134737998/nifakelu.pdfIn PDF document text
    • http://ompala.store/424253166266we40.pdfIn PDF document text
    • http://idealslim-italiaoficial.site/go_math_6th_grade_workbook_answersf8bas.pdfIn PDF document text
    • http://kernig.store/676449277464coo1.pdfIn PDF document text
    • http://izzzaaa.space/arduino_mega_2560_r3_manuale551r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sugexure.rf.gd/29665766709.pdfIn PDF document text
    • http://jinibodakix.epizy.com/william_tell_overture_finale_sheet_music.pdfIn PDF document text
    • http://wiwafejopof.epizy.com/baperegomuninesuxupagiv.pdfIn PDF document text
    • http://fofeparulofiz.rf.gd/1-_99_fishing_guide_osrs_ironman.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_off0000e181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE181 5036 bytes
SHA-256: ce24b2f6072efb24e8a1a9e4c7b816010d4b4cc7a837c658ef584761fb55f1bf
font_01_sfnt_off0000f2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A1 10684 bytes
SHA-256: 5ac30dc231e0e4b93721356a1ce498abc80bb84001179c5d4b86ef1eeb36fdfb