Malicious PDF — malware analysis report

Static analysis result for SHA-256 34af77c94cf76861…

MALICIOUS

PDF

77.6 KB Created: 2021-03-10 02:30:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 76bb0b5431458def39e3487b0e57ace3 SHA-1: c5572936c2c11e2901b5665e0c3bc5e3e106d586 SHA-256: 34af77c94cf7686133f7b48e6ed073e6a2618b0d4b9ac26fce7ecd1b41a3b42f
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 0.9996

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://ponafet.ru/123?utm_term=anaplan+connector+guide PDF link annotation
    • http://like-store.site/dutch_oven_cooking_recipe_booktorz6.pdfIn PDF document text
    • https://cdn.sqhk.co/fewoxenovof/Dagejrg/mortal_kombat_11_switch_gameplay.pdfIn PDF document text
    • http://sy0n.icu/sejufusafowava3dahk.pdfIn PDF document text
    • https://cdn.sqhk.co/pefisemise/uhfyHjf/78883549490.pdfIn PDF document text
    • http://romeoplanet.club/how_to_be_gratitude8tqoc.pdfIn PDF document text
    • http://topuniversityru.fun/683976837009dnp2.pdfIn PDF document text
    • https://xemaxokiba.weebly.com/uploads/1/3/4/3/134350412/173b2aecebc.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/UKjn8hd/76067951199.pdfIn PDF document text
    • http://jibiduseg.22web.org/64351077755.pdfIn PDF document text
    • https://vesanawe.weebly.com/uploads/1/3/4/6/134602832/89ada100.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/tels_closing_date_2021.pdfIn PDF document text
    • https://feleluxotikuko.weebly.com/uploads/1/3/4/3/134338959/tirasenena.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/pubopelej/britax_romer_forward_facing_installation.pdfIn PDF document text
    • http://bapilusigedoj.rf.gd/kill_team_commanders_expansion_set.pdfIn PDF document text
    • http://piwuzodoxomox.epizy.com/where_can_i_get_my_dyson_fan_repair.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/bafopojolutata.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/28626529916.pdfIn PDF document text
    • http://vipoxegoto.rf.gd/can_any_vizio_remote_work_with_any_vizio_tv.pdfIn PDF document text
    • http://kutoxinupuroxo.onlinewebshop.net/shear_force_and_bending_moment_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/mordegon_second_form.pdfIn PDF document text
    • http://vedaremix.epizy.com/algebraic_expressions_class_7_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/23543118602.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_off0000ef66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF66 5052 bytes
SHA-256: 0379a56b70299c1e94781c84ad3672d9afc1b6732eba1cc36b73a2e9d6a51507
font_01_sfnt_off000100a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100A1 11956 bytes
SHA-256: 90f178096fc5c670f42697f70c6d664a698081a1c53bd5331d6eacd08530593f