Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2a6ef44dcdae3a5…

MALICIOUS

PDF

79.3 KB Created: 2021-03-28 06:31:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ba757197078c2da7237b90d06fc68bc6 SHA-1: 1a42aeefc3fe5b9960dd71eb0ef5d7527f39fbc2 SHA-256: a2a6ef44dcdae3a5e187847652067b194fc440f1637e9f260e51783505ea340f
96 Risk Score

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 0.9998

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://crophysi.ru/strik?utm_term=boot+hill+rpg+3rd+edition+pdf PDF link annotation
    • http://xafesuvorolivig.scienceontheweb.net/35136200113.pdfIn PDF document text
    • https://cdn.sqhk.co/waxobakal/heegg9X/jaxiwupekuximigozofipane.pdfIn PDF document text
    • http://vitofemegawe.getenjoyment.net/four_color_personality_test.pdfIn PDF document text
    • http://xivetaf.22web.org/dotebekup.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/9ifZhcV/ff_nickname_generator_pro_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/tubefajuvolu/ijjhSoa/mobugeropidubup.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/bipoxugix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kuxemozoxabonag.onlinewebshop.net/cengage_chemistry_books_for_iit_jee.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/nfl_fantasy_draft_guide.pdfIn PDF document text
    • http://riveminigokoxa.myartsonline.com/45814634630.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/wapifit.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/systemverilog_assertions_handbook_free_download.pdfIn PDF document text
    • http://lilivuxaja.rf.gd/fourth_grade_input_output_tables_worksheets.pdfIn PDF document text
    • http://kazigolukujo.epizy.com/chakras_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/pneumatic_bending_machine.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/boney_m_christmas_carols_songs_list.pdfIn PDF document text
    • http://dozirojaj.rf.gd/how_do_you_manually_unlock_a_whirlpool_washing_machine_door.pdfIn PDF document text
    • http://vivetusukuv.onlinewebshop.net/wudizeduwenatiliwabexorap.pdfIn PDF document text
    • http://pizenusogusu.atwebpages.com/pdf_beveiligen_engels.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/kindle_oasis_2_file_formats.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_off0000f62d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62D 5128 bytes
SHA-256: e7f606aff90cee3339f17fc9d372b375d6c24e74a6f42e4c537933b3da47a18a
font_01_sfnt_off000107a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A4 11888 bytes
SHA-256: cbcefec1044d383a83ddfcaf33c3e461b9d3628c8da43ba66c3fb2f611826281

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