Malicious PDF — malware analysis report

Static analysis result for SHA-256 0217045d67ff1904…

MALICIOUS

PDF

75.2 KB Created: 2021-03-16 11:33:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 6c8dfb05f9d4422b658ffadb9ad9e1df SHA-1: d0a7cae0e6b0acabbad30db29d8fa0d57a7814cc SHA-256: 0217045d67ff19046141a7ccd016f7f00d0c664eff4008d2cf63cf09e7fa922c
136 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URL that redirects to 'https://pelibifir.ru/strik?utm_term=city+of+thieves+adventure+time+gif', identified as an SEO redirector for free-download phishing. The document body contains obfuscated text, suggesting an attempt to disguise its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://pelibifir.ru/strik?utm_term=city+of+thieves+adventure+time+gif PDF link annotation
    • https://cdn.sqhk.co/bojowagawire/hbGbhec/best_tournament_app_for_free_fire.pdfIn PDF document text
    • https://cdn.sqhk.co/koxopumo/jdgfjhW/26240335663.pdfIn PDF document text
    • https://cdn.sqhk.co/bemaxopig/WidjhJt/streamlabs_game_overlay_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwifoviwalo/iddlseE/pandora_stackable_rings_rose_gold.pdfIn PDF document text
    • https://cdn.sqhk.co/jukelifawap/BNihB47/radionorba_app_italia_free_online_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/48f37ea1-5b8f-4a87-99be-9b3d6da4246b/bronwyn_quotes_from_one_of_us_is_lying.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd2e0ab8-eacb-4785-9883-54b5ef4b6be5/sozedixazufefenulotatax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e0609e4-3893-407f-a1dc-fe0ab2d7606b/tuligemu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6014ad91-0828-47b8-bbf8-0a662428990e/how_to_pledge_delta_sigma_theta_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f940c1f6-7d2c-4288-9e3e-79cdceec249f/what_is_greek_art.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa3ec090-83fa-44c5-86fe-5aeac144d6a8/vaxasenusewe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00880e02-94cc-4721-b1a1-d09801e21837/pafomuzik.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/sarkari_result_ssc_mts_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/42521433242.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/wosejavavaluz.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/hospital_management_system_database_project_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/current_altitude_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/natwest_chaps_payment_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/miwixetalawazifej.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/23747883608.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9be489b-c533-4766-acfc-49ad10768b71/naming_molecular_compounds_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/letterhead_template_word_2004.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/84931021700.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_off0000e904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE904 5356 bytes
SHA-256: 745c0744f67fac0fe25662ddb69d987697428009e54e83dbb6e9fd942eda224b
font_01_sfnt_off0000fb1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB1E 10796 bytes
SHA-256: 0f838afa7bf36c5309d1958a0af1e97a4c39efae7155d68000e6621289a4a8ed