Malicious PDF — malware analysis report

Static analysis result for SHA-256 35d09f4b1d7d5add…

MALICIOUS

PDF

69.8 KB Created: 2021-02-24 23:12:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 45feb98fa0ee31dc8bc487f2f51734b2 SHA-1: 7dd8d977d38ce80a7cf943429a6d4d3022cc84a7 SHA-256: 35d09f4b1d7d5adda9b28396999a1ab4aaa6e877418107eb712bbddba5ade2f8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/123?utm_term=el+circo+de+la+chola+chabuca+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480598/normal_601e80c1d78ac.pdfIn PDF document text
    • http://zupanito.iblogger.org/joining_report_application.pdfIn PDF document text
    • https://zekawumili.weebly.com/uploads/1/3/4/4/134403966/kolape-sesanujupapefa.pdfIn PDF document text
    • http://immortal-sho.club/e_ora_divertiamoci_streaming7o7xp.pdfIn PDF document text
    • https://bupafenanibud.weebly.com/uploads/1/3/4/0/134042845/ff1156.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389107/normal_601f9a8c5e77f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385204/normal_6020033a6fb67.pdfIn PDF document text
    • http://moshon.space/kinetic_and_potential_energy_questions_and_answers5f2zq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465255/normal_5ff28b8d36f63.pdfIn PDF document text
    • http://bighome.space/fusionner_document_creator80wwq.pdfIn PDF document text
    • https://jumufewaxijakuk.weebly.com/uploads/1/3/1/3/131380308/pigotuxizadidetesek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://modurogodolu.epizy.com/66066722780.pdfIn PDF document text
    • http://kefujuvaw.epizy.com/non_hodgkin_lymphoma_guidelines_europe.pdfIn PDF document text
    • http://pavinudoj.epizy.com/lock_out_tag_out_procedures_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/poe_betrayal_mastermind_fight_guide.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_off0000d091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD091 5428 bytes
SHA-256: b3389b4d7578b47c884308079eb241144be45b8221d6d9f9959e5e9deb0f8e17
font_01_sfnt_off0000e301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE301 11596 bytes
SHA-256: 395520d18eb5d31b6d022de20a1799be8d24ad5cf37e40408af6eb8e732fb800