Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee7722f62d7a002…

MALICIOUS

PDF

76.6 KB Created: 2021-03-11 10:41:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: c8ff577f8ebe4e3cd215c88d02bc1329 SHA-1: bfd60bebadd0ed931105307bb8f1dfb2e66e7fee SHA-256: eee7722f62d7a002397f2f8ff4bb543c5d0f9109697144de696f1b5907650291
126 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one prominent URL pointing to 'maypoin.ru', suggesting a phishing or malware distribution attempt. The PDF structure and the presence of external URIs indicate an attempt to redirect the user to a malicious site, likely disguised as legitimate content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/award?keyword=behaviorism+and+social+learning+theory+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481059/normal_604059a499cdf.pdfIn PDF document text
    • http://policyhelpcenter.com/bedoyecta_para_que_sirve_precio1xdb6.pdfIn PDF document text
    • http://zekaxezixil.medianewsonline.com/zerikawofixesen.pdfIn PDF document text
    • http://botavubapisod.mywebcommunity.org/nlt_bible_app_apk.pdfIn PDF document text
    • http://nuzopofe.iblogger.org/how_to_delete_p0420_code.pdfIn PDF document text
    • https://vimexizud.weebly.com/uploads/1/3/4/7/134755563/xesabifexi_dokuma_gexuwuxokowagu.pdfIn PDF document text
    • https://gidupewurugi.weebly.com/uploads/1/3/1/6/131637306/jojalamumumasetugu.pdfIn PDF document text
    • http://ketousa.site/58618056239i2gb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_600fbd0c835af.pdfIn PDF document text
    • https://kabosasano.weebly.com/uploads/1/3/5/3/135398154/koborax.pdfIn PDF document text
    • http://wiwovurezibaso.getenjoyment.net/68081291616.pdfIn PDF document text
    • http://baffer-shop.space/online_contest_rules_and_regulations_templateu4pi5.pdfIn PDF document text
    • http://24goodstore.site/how_to_solve_sony_push_power_protectorcgox2.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/8ae59aef-aaf6-4c20-a2a8-091b0e137cd6/sullivan_algebra_and_trigonometry_10th_edition_access_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cf0d4ff-3ab8-4411-9043-b04afa07395e/2318390117.pdfIn PDF document text
    • http://fegesizonavuvu.epizy.com/carpinteiro_pregador_playback.pdfIn PDF document text
    • http://kurivixudenetiw.epizy.com/livret_de_formation_brevet_fdral_rugby.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c19510f-607d-434e-90bf-dcab71313c33/sokekomasezefifi.pdfIn PDF document text
    • http://pafafobovixezat.epizy.com/food_safety_letter_of_guarantee_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd2740d0-fabe-4e3d-8a27-040aa8614147/75778782067.pdfIn PDF document text
    • http://fetekovabu.onlinewebshop.net/nespresso_aeroccino3_milk_frother_not_heating.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_off0000ef58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF58 5780 bytes
SHA-256: 998397b0a8e5a2004454e250dd0a1bda13390059fe45fccd7dcdcbfa31818718
font_01_sfnt_off000102eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102EB 10032 bytes
SHA-256: b0127a005e902dd6f577ea884405e31f20c953c20984c3381489e54151c3cabe

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