Malicious PDF — malware analysis report

Static analysis result for SHA-256 732bcb6b061fcaee…

MALICIOUS

PDF

83.5 KB Created: 2021-04-20 23:17:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bf164530233bb03140e2545855cd4c95 SHA-1: dafff802c252b084a4a82042c6b71d2fb66263ec SHA-256: 732bcb6b061fcaee4e01d0e00b13a7d746c95710f403f9dac57e55f3f888c184
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious and phishing-related. It contains numerous external URIs, many pointing to disposable hosting, suggesting a link farm designed to distribute malicious content. The document body, though heavily obfuscated, contains keywords related to downloading a Python guide, indicating a deceptive lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://vilenefex.ru/strik?utm_term=python+3+web+development+beginner+guide+pdf+download PDF link annotation
    • https://sojinunanujiwok.weebly.com/uploads/1/3/5/3/135311630/37379dc042aa8.pdfIn PDF document text
    • https://gekiwudev.weebly.com/uploads/1/3/4/7/134769606/b7f466c731cb.pdfIn PDF document text
    • https://rogujodur.weebly.com/uploads/1/3/4/8/134899240/6b71060e.pdfIn PDF document text
    • http://madewithsunshine.com/gufovemenigudavuzedi08kuu.pdfIn PDF document text
    • http://vittorguxx.site/free_casino_slot_games_for_android541jq.pdfIn PDF document text
    • http://chambrehq.xyz/norcold_n8xrt_not_coolingncaf8.pdfIn PDF document text
    • https://jobuvofuwado.weebly.com/uploads/1/3/1/4/131483112/laxijolasixurav.pdfIn PDF document text
    • http://toportt.online/85738314950p6pfc.pdfIn PDF document text
    • http://losmopaka.site/lutefubuwofemomogaj7803e.pdfIn PDF document text
    • http://italywow.space/69923658445nui5f.pdfIn PDF document text
    • http://italywow.pro/book_of_exodusl24si.pdfIn PDF document text
    • http://scandisvet.ru/un_puente_hacia_terabithia_2_pelicula_completazd2qi.pdfIn PDF document text
    • http://hydrofthol.space/849557866787eyr5.pdfIn PDF document text
    • https://kepijiloxa.weebly.com/uploads/1/3/4/1/134108658/5034055.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/philippine_medical_technology_laws_and_bioethics_bookqrpeb.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/wudurokamanupumezaxawebqdv4.pdfIn PDF document text
    • http://magnetfix.store/how_to_find_interior_angles_of_irregular_polygonsnxrjl.pdfIn PDF document text
    • http://sushibara.net/830506239050jki7.pdfIn PDF document text
    • http://cadenalia.com/44309263121h0oan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xiparokenozi.epizy.com/sigma_notation_problems_and_answers.pdfIn PDF document text
    • http://diwukimip.epizy.com/98635342195.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D1 5716 bytes
SHA-256: 679a65632f4d2a72a0904f41856fd1df817135e69dc23ad990417e86e6f8bb0d
font_01_sfnt_off00010b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B27 10948 bytes
SHA-256: c46fe91dfebfd33f95c241f4efb8e2bbbec56c76712e7c38758ce98af2d0da32
font_02_sfnt_off0001306c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1306C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.