Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ee49b6bc0d34d9b…

MALICIOUS

PDF

67.0 KB Created: 2021-03-02 00:30:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 09f474a7605b5ca5200ef31da2123be1 SHA-1: d869d604dfc8eedb853ff4c4bd380b81591b8d6e SHA-256: 8ee49b6bc0d34d9bff94315c092492b67052521abc0dbcf51875cb15fe9c7928
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of external URIs, specifically the one pointing to 'xajibur.ru', suggests the document is designed to redirect users to a potentially harmful site. Although no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a phishing or malware distribution lure.

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://xajibur.ru/strik?utm_term=ready+new+york+ccls+grade+7+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385021/normal_6024c538c1b85.pdfIn PDF document text
    • http://pewujok.mypressonline.com/what_are_the_congruence_theorems_for_triangles.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409630/normal_5ff6673e2e4b2.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/gcjihgn/mini_challenge_race_calendar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_600cff6eeb93f.pdfIn PDF document text
    • https://cdn.sqhk.co/mupijuwo/jdicrER/gumuvafavupomaju.pdfIn PDF document text
    • http://fajasated.mywebcommunity.org/line_6_firehawk_1500_pedal.pdfIn PDF document text
    • http://widuzuduzudovix.iblogger.org/dibulosilel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488317/normal_5fdbe2ac8c488.pdfIn PDF document text
    • https://cdn.sqhk.co/woteruzid/7WKji8I/the_tiny_bang_story_premium_download.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/fekife/pevalemub.pdfIn PDF document text
    • http://zowofiz.myartsonline.com/16733604846.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/inter_milan_fifa_20_career_mode_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/noliwewu.pdfIn PDF document text
    • http://mumidukegex.rf.gd/pocket_juice_hybrid_heat_portable_charger_and_hand_warmer_reviews.pdfIn PDF document text
    • http://kogosiji.epizy.com/xoxudatalovedix.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/35450429659.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/39535278272.pdfIn PDF document text
    • http://xodenumaverap.epizy.com/escape_room_level_30_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/believer_remix_trap_nation.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/duplicate_data_in_excel_spreadsheet.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_off0000c79f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC79F 5452 bytes
SHA-256: 6514220d0d4a50141757d98539564e5f2d02be7fb068d6fd3727c9eee427c764
font_01_sfnt_off0000da6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6E 10084 bytes
SHA-256: e01d217a15b2bff85b98d703ec837be1805ac294d604074a4cd3c002aa3379ec

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