Malicious PDF — malware analysis report

Static analysis result for SHA-256 2714eb1913cb8504…

MALICIOUS

PDF

68.2 KB Created: 2021-02-16 00:52:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d79090f2bb673f5e1d679b6071bf13f3 SHA-1: 8c4bfc33e2cc38be2f1933ba4ea39c0a3d1b177e SHA-256: 2714eb1913cb85049b8e933ab9b10c6a457ae162a39ee148b0c776141dd6069a
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/wb?keyword=5%20string%20bass%20guitar%20lessons%20pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450734/normal_5fdfc9dedb39b.pdfIn PDF document text
    • https://pabebubi.weebly.com/uploads/1/3/2/6/132695301/bapit_lugexopikivoxi.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/br592hf/draw_lines_in_excel_vba.pdfIn PDF document text
    • http://free-at.pro/65598103680kji3d.pdfIn PDF document text
    • https://cdn.sqhk.co/leperanurosi/vigrehc/74899790231.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457590/normal_5fcf789d9b0af.pdfIn PDF document text
    • https://puxupukesif.weebly.com/uploads/1/3/0/8/130813524/9e0d2e0ccffaf2.pdfIn PDF document text
    • https://cdn.sqhk.co/tatiwurixiwo/hjjiQjb/sokasegumesujajebevezokel.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/gfgihhc/63724984927.pdfIn PDF document text
    • https://voxivunesiru.weebly.com/uploads/1/3/1/4/131407918/e4d2959e2513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491432/normal_601753912e7b6.pdfIn PDF document text
    • https://cdn.sqhk.co/refowofiros/XYYC6ig/afk_arena_guild_master_guide.pdfIn PDF document text
    • http://yourcy.com/lulipctuoi.pdfIn PDF document text
    • https://cdn.sqhk.co/vunebapenuj/bQidhd2/65922349231.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383805/normal_600665e2023ba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://selifesupenikiv.epizy.com/3395882169.pdfIn PDF document text
    • http://kubivakov.epizy.com/endothermic_reactions_vs_exothermic_reactions_worksheet_answers.pdfIn PDF document text
    • http://sekamot.epizy.com/7409710522.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_off0000d175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD175 5376 bytes
SHA-256: 5f9d8445b7a1e19fdc5d8fb84cc8bf97a648d013cfa7855e9c19571e43bf0077
font_01_sfnt_off0000e3c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C5 9396 bytes
SHA-256: 92ff767bc97b9af635ac682efb201d3102f020df2e9520113864574a4ef11f78