Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5024e3f14164ee0…

MALICIOUS

PDF

78.4 KB Created: 2021-02-19 02:42:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 05babb9df7ad28afe81b6fb0876fbf12 SHA-1: 7d421bdf905f5a541dfd7a51c89cc97053ad8d81 SHA-256: d5024e3f14164ee086dcd3ff5e97f61412eabc84906b78f0b11b8056b19a912d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/123?utm_term=fl+studio+11+alternative+free+plugins PDF link annotation
    • http://itanto.space/12392660989c79jz.pdfIn PDF document text
    • http://flowerport.shop/81011546041jp2ej.pdfIn PDF document text
    • https://wipezupogev.weebly.com/uploads/1/3/4/3/134307181/xewovowivid_kozijapadode_vagolokopimafix.pdfIn PDF document text
    • https://cdn.sqhk.co/gejupajo/mrhiJuY/spinosaurus_aegyptiacus_2020.pdfIn PDF document text
    • http://levelupguild.com/wafefawuloworojedilopavhipp.pdfIn PDF document text
    • http://vienvozvrat.site/hexa_frame_information3jgyk.pdfIn PDF document text
    • https://lavabowigu.weebly.com/uploads/1/3/2/6/132682694/lenozafuxekebusexu.pdfIn PDF document text
    • https://zazozoke.weebly.com/uploads/1/3/0/7/130776388/xajutabavab.pdfIn PDF document text
    • https://mogatuzutixu.weebly.com/uploads/1/3/4/6/134684840/2106415.pdfIn PDF document text
    • https://jonaduxito.weebly.com/uploads/1/3/1/3/131384171/tojirimefi.pdfIn PDF document text
    • https://zimavilagapiwe.weebly.com/uploads/1/3/2/7/132712623/73eec3cc63a06.pdfIn PDF document text
    • https://lesaletalakiwop.weebly.com/uploads/1/3/1/3/131379456/nazuvunum.pdfIn PDF document text
    • http://wildboost.club/update_aol_app_on_androidejcn7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367624/normal_6003616d640ce.pdfIn PDF document text
    • https://cdn.sqhk.co/pibegufuxova/hIijmBA/42866611988.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/bootstrap_4_form_validation_dropdown.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/icloud_login_finder_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/73917754684.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_off0000f59c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF59C 5276 bytes
SHA-256: fc805fa053ea3a67be702c42d367e3009da9644d79f8949f370a5283f27b1df3
font_01_sfnt_off000107af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107AF 10824 bytes
SHA-256: 4d7ee48b447a61e1458514d3ece2106af51ca9be3dc3bd5e5b306e7809b8f130

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