Malicious PDF — malware analysis report

Static analysis result for SHA-256 50e375284800d198…

MALICIOUS

PDF

69.7 KB Created: 2021-02-22 08:22:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ff696186fdfd0f0fdfeca15a6ee1a086 SHA-1: 7e766db11ad1b25f99ecbc298757ba48f8572218 SHA-256: 50e375284800d1987cc6ca87336246a10d7c9935d2d5c45b1e88f1b3b7a60455
126 Risk Score

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://baarspo.ru/wix?keyword=graco+magnum+lts+15+tips PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4444877/normal_5fcce0808d4c3.pdfIn PDF document text
    • http://opensalle.xyz/kubuxasewubibubipokavabaqxguj.pdfIn PDF document text
    • http://bubble1.space/encase_certified_examiner_study_guidewho7d.pdfIn PDF document text
    • http://bemelegevew.22web.org/pajoxagofunudilesinizesoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450501/normal_5ff60411c5de2.pdfIn PDF document text
    • https://vozozexofevufut.weebly.com/uploads/1/3/1/8/131871902/jewopitexebalata.pdfIn PDF document text
    • http://mebelrostov.ru/85018169673vlawg.pdfIn PDF document text
    • http://ses-paypal.com/sakepemirug4bcu.pdfIn PDF document text
    • http://tijijosopake.22web.org/laminated_plywood_sheets.pdfIn PDF document text
    • http://lojupubevodi.22web.org/47169063427.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://megutid.epizy.com/what_motivates_you_at_work_best_answer.pdfIn PDF document text
    • http://fulawumobolofog.epizy.com/rounders_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/23937426232.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/aiou_date_sheet_autumn_2019_matric.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_off0000d3aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3AA 5460 bytes
SHA-256: 4854af5acd7b7df71d20daba1bf5b837c3f7594e118da3c040b425d3a8b5a48c
font_01_sfnt_off0000e634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE634 10504 bytes
SHA-256: d49b045ed324915e043962e777debc259fe0812a606ccabd548de25557908fbf