Malicious PDF — malware analysis report

Static analysis result for SHA-256 7673344593adf92d…

MALICIOUS

PDF

72.2 KB Created: 2021-03-17 18:30:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: da28d16913006d80dce9b600882ce3b1 SHA-1: 78df77f5de147fab4d77fbe1b80bc87d78543dce SHA-256: 7673344593adf92d7046da208dd85e6be17d501f767f8c0fe727286cbb076d5f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jumiwimov.ru/wix?keyword=community+church+of+east+gloucester PDF link annotation
    • http://creditstar-kabinet.com/a._m._i_netflix_parents_guidet6zub.pdfIn PDF document text
    • http://kalanuso.iblogger.org/ac123_transmitter_manual.pdfIn PDF document text
    • http://robinmani.site/61939079879zuwgm.pdfIn PDF document text
    • http://fc-aromat.ru/autocad_draftsman_jobs_in_dubai_salaryukwyv.pdfIn PDF document text
    • https://morogixifidogaj.weebly.com/uploads/1/3/4/4/134497599/bfba143371cf92.pdfIn PDF document text
    • http://yogait.space/zofosaxiniracavry.pdfIn PDF document text
    • http://qwonder.space/30552903038eyztr.pdfIn PDF document text
    • http://fegivate.medianewsonline.com/auditoria_administrativa_alfonso_amador_sotomayor_gratis.pdfIn PDF document text
    • https://luvemolovod.weebly.com/uploads/1/3/4/3/134305721/1326348.pdfIn PDF document text
    • http://vudifabofugejij.medianewsonline.com/lord_of_the_rings_book_series_list_in_order.pdfIn PDF document text
    • https://disadaniti.weebly.com/uploads/1/3/4/4/134463451/sazipamu_mibuderegimazik_rodosop.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
    • https://s3.amazonaws.com/mizeteb/mozilla_firefox_nightly.pdfIn PDF document text
    • https://b5c4f4dd-ae1f-4f6a-908c-f463551224e4.filesusr.com/ugd/dafd60_80e4cf3a30d546ffb3c25f96309dac5d.pdf?index=trueIn PDF document text
    • https://e8677ced-6330-435e-8237-200fb10408a4.filesusr.com/ugd/a4c1fa_fd211b8fb53b4399a7c09c4e8d2a8979.pdf?index=trueIn PDF document text
    • http://rekujub.rf.gd/attack_on_titan_anime_ending_date.pdfIn PDF document text
    • http://jenepopavuse.epizy.com/muwulijitavutoxerova.pdfIn PDF document text
    • https://cd65756b-a9c7-4cca-9498-1747a6459195.filesusr.com/ugd/05eb20_3dab4472573a4b8f861a574cf358c2b7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/service_design_toolkit_templates.pdfIn PDF document text
    • https://46ebecaa-9490-439b-bba6-ee77f1a6ca93.filesusr.com/ugd/cee8a1_84c1ea5a3a164aea885dd13e2f101d4f.pdf?index=trueIn 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_off0000d0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A9 5300 bytes
SHA-256: 9fb821996ce6a030d081d6662484fe14a02eb1494c3bfa4fb67dd9f3c3a9bb81
font_01_sfnt_off0000e28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28E 10108 bytes
SHA-256: 3a0b189a66d65ab5b320b24fd0e7fa32f0e120778da16a3f11214c77789a3562
font_02_sfnt_off00010541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10541 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333