Malicious PDF — malware analysis report

Static analysis result for SHA-256 65c5d41cb4aba80a…

MALICIOUS

PDF

73.2 KB Created: 2021-02-24 11:18:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1355f8f81fa533d61aaaa7a170483c37 SHA-1: fd727b10c13b943318125ead0c41fbc3494928b5 SHA-256: 65c5d41cb4aba80aaf95927ff875a745ac4f871564c5862ef8a0b48df917d164
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=oedipus+rex+study+guide+pdf PDF link annotation
    • https://cdn.sqhk.co/tobepeliv/gjYjLic/facebook_messenger_desktop_link.pdfIn PDF document text
    • https://cdn.sqhk.co/xokunafuse/j0gcggJ/inspiration_model_school_portal.pdfIn PDF document text
    • http://get3creditscores.info/jbl_flip_3_portable_bluetooth_speaker_specifications8p1mz.pdfIn PDF document text
    • http://cosmosqrab.online/quotation_marks_punctuation_worksheets1xbt5.pdfIn PDF document text
    • http://creditactive.info/the_lottery_winner_book_reviewl1eb9.pdfIn PDF document text
    • http://begemotiks.space/7430291191dbusd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380681/normal_600bff747968b.pdfIn PDF document text
    • http://train-home.ru/father_son_barber_fairhope_alnpji4.pdfIn PDF document text
    • http://dashcamtopbest.com/275858315933mdup.pdfIn PDF document text
    • https://cdn.sqhk.co/votijavos/7Rjgghg/buy_breville_pizzaiolo_canada.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377936/normal_6006ab2c4d71b.pdfIn PDF document text
    • http://technodom11.com/afsar_bitiya_full_title_song_freepgz4f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xabalaru/29427928510.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/astrology_the_divine_science.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/bioshock_2_collection_ps4_trophy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/jemokikukurawixadajex.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/carbon_cycle_gizmo_answer_key_activity_c.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/antimicrobial_activity_of_ginger_extract.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_off0000e37a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37A 5164 bytes
SHA-256: 9a7e84add162b0ef7347f2a80723239dd46a000cfd84de3e7a3eb7a45ec81b2f
font_01_sfnt_off0000f527.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF527 10072 bytes
SHA-256: 0a5c1e555c76fbe2b43dcc6500743290bc3af2d843bf7734ce21321fdaf30870