Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2fc6348f05dc734…

MALICIOUS

PDF

59.7 KB Created: 2021-02-20 14:48:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b3020771796c10598798e114d87cc0dc SHA-1: f65703a44fa19b864ca6e3e27bb6e815be98a901 SHA-256: b2fc6348f05dc734274ff191664173962c93c9a7a468e962ce5de4488a00a885
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/123?utm_term=2018+toyota+camry+sx+v6+for+sale PDF link annotation
    • http://lastmarkt.ru/juicio_de_amparo_en_derecho_penalzo6t5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444626/normal_5fd0477da6f30.pdfIn PDF document text
    • http://hempmap.ru/10680897376sx0ai.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428335/normal_5fe760532ab6c.pdfIn PDF document text
    • https://fabezetenonuke.weebly.com/uploads/1/3/4/8/134846610/nokabexekefobim_mokilukide_wumefije.pdfIn PDF document text
    • http://puwobero.22web.org/mu_cv_n_gin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451971/normal_600012b695b2a.pdfIn PDF document text
    • https://zororoxuz.weebly.com/uploads/1/3/4/3/134309160/8162484.pdfIn PDF document text
    • https://supipujijasof.weebly.com/uploads/1/3/0/7/130739476/gavobuto_tomomofajaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wozawexopad.epizy.com/63150840273.pdfIn PDF document text
    • http://suwetiwojiza.rf.gd/biwitepijavuneno.pdfIn PDF document text
    • http://sevuvev.epizy.com/92988220034.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/budesujewadexuxewukes.pdfIn PDF document text
    • http://fepaxediv.rf.gd/27692492005.pdfIn PDF document text
    • http://faxaxesaxejov.rf.gd/wolipiriwibasuvo.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_off0000ad31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD31 5836 bytes
SHA-256: c5a711824cf9030c33295facca74025f6cfd959188c92a78f07019246c3844db
font_01_sfnt_off0000c10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC10B 9664 bytes
SHA-256: 83a62f2562f2df3a9df41ce398edbc0cd841b7f726adb0ffffc49ebf26afc0f9