Malicious PDF — malware analysis report

Static analysis result for SHA-256 425921801292ec21…

MALICIOUS

PDF

71.5 KB Created: 2021-03-05 06:36:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: d7206c6eab9ce22dd3cfc8fe5dd1c9b2 SHA-1: 65d42ac4e7c9b8da05b3850511ecdf4f5765e121 SHA-256: 425921801292ec21bb1e4c9862c8ae3b87132044c4b1c6fcf8f2a8266ce921e6
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable domains and are part of a link farm, indicating a phishing or redirection scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. The document body, though garbled, contains a search query that serves as a lure to direct users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://resalured.ru/123?utm_term=how+to+fix+running+toilet+glacier+bay PDF link annotation
    • http://vemololuwejab.iblogger.org/74932867750.pdfIn PDF document text
    • http://kusafomidufe.mywebcommunity.org/kezopipuduwujipuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/zapajugadira/gV0jfjh/rebuxasawikogurawutezexi.pdfIn PDF document text
    • http://lovunusugi.22web.org/buzzed_book_free.pdfIn PDF document text
    • http://rovebagilin.22web.org/acute_kidney_injury_book.pdfIn PDF document text
    • http://zizodoroluxonaf.sportsontheweb.net/reptile_and_amphibian_study_merit_badge_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369518/normal_601d5b66eb7bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456687/normal_603183dbc3baf.pdfIn PDF document text
    • https://cdn.sqhk.co/xawefigi/FSMTJig/hit_and_run_movie_2008_rotten_tomatoes.pdfIn PDF document text
    • http://buboripixorezu.iblogger.org/cobra_walkie_talkie_microtalk_instructions.pdfIn PDF document text
    • http://zitokujamu.mypressonline.com/32669123934.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://piwirapofo.epizy.com/androstenedione_formation_from_testosterone.pdfIn PDF document text
    • http://nabunuwo.epizy.com/kidaxamitifobogibuwur.pdfIn PDF document text
    • http://buzanuziti.myartsonline.com/93999835951.pdfIn PDF document text
    • http://tuxusar.epizy.com/casio_wk_500_weighted_keys.pdfIn PDF document text
    • http://rajuxibusajebob.rf.gd/ashampoo_cd_writer_software_free.pdfIn PDF document text
    • http://bumurulepowele.myartsonline.com/what_is_the_best_starbucks_coffee_beans.pdfIn PDF document text
    • http://kowisefofob.epizy.com/69337686412.pdfIn PDF document text
    • http://xogimutidum.epizy.com/1040468268.pdfIn PDF document text
    • http://wedejilifolani.rf.gd/whatsapp_wedding_invitation_card_template_free.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_off0000cb1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1B 5116 bytes
SHA-256: 98e88d530d5c74c47f1bc7b9486eae43e98c05a7888f5e45324cf29e7826814b
font_01_sfnt_off0000dcab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAB 10632 bytes
SHA-256: 57c9c8f5400b302b957f51bb344ecca29f148c5bd64d96d99e2071978175630a
font_02_sfnt_off0001006f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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