Malicious PDF — malware analysis report

Static analysis result for SHA-256 4abf41554327d7a2…

MALICIOUS

PDF

75.3 KB Created: 2021-03-22 20:54:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1534d55d803e1c057c2b071c6af77842 SHA-1: 95ba04ee23547bed9be18b53fc595b949ff58fce SHA-256: 4abf41554327d7a29baabf19a5e6579334e9b5df8d0e358347fb78e46808832b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=what+is+the+anode+rod+in+a+water+heater+made+of PDF link annotation
    • https://cdn.sqhk.co/kizofapekeku/PtZghja/2849174295.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/hIpr7ig/junezugexazamalomovuramis.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/sUhcWac/abc_songs_for_toddlers_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/tazuxalana/giOXicV/curvy_punch_3d_hack_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/Cifghcg/simple_business_plan_sample_slideshare.pdfIn PDF document text
    • https://cdn.sqhk.co/zodozane/cihgjgj/duzezak.pdfIn PDF document text
    • https://cdn.sqhk.co/sekigizakeku/hfeievZ/25023860190.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/fwUEjdS/fatal_hit_ninja_heroes.pdfIn PDF document text
    • https://cdn.sqhk.co/zopimoforaja/je7GLhe/tipasiko.pdfIn PDF document text
    • http://vawabipoxe.sportsontheweb.net/a_whole_new_world_piano_sheet_easy.pdfIn PDF document text
    • https://cdn.sqhk.co/bobavijiwoba/ujggjgh/hair_salon_in_walmart_meadville_pa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gavawekib.myartsonline.com/mefemonulojobarabijik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6da5da70-f600-4717-8854-f97f87920159/learn_spoken_hindi_online_free_through_english.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/fitted_crib_sheet_pattern_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/hotstar_tv_drama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4c25ff7-40af-49f5-8f20-78baafc1dc47/margin_of_safety_calculation_toxicology.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/31828675174.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/ashrae_2016_lighting_compliance_form.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/datesafekumofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87151716-0877-44d8-9b17-2defc598dded/zukofizomulenep.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/bluetooth_software_for_windows_vista_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/formatos_de_anuncios_facebook_ads.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/396cb08a-b7c7-4195-90fb-4db7cd2406e1/prepositions_exercises_for_class_10_cbse.pdfIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/jokawufukumoworaxef.pdfIn PDF document text
    • http://doriponesarom.myartsonline.com/maths_graph_paper_a4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaae8f3e-9395-4f45-8bf4-f31458a9f06f/panasonic_tc-p42c2_stand.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_off0000e9c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C0 5220 bytes
SHA-256: 54d0e484ad377d4cd7f52e987462e244312314824f49f074a6bc93c86e7bc57c
font_01_sfnt_off0000fb6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB6D 10528 bytes
SHA-256: bc43937f841fdd2328857e4715a262cc1d4779f87830e0f15a14b9232d321d3d

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