Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a66b9f1bed2e855…

MALICIOUS

PDF

72.8 KB Created: 2021-03-06 18:54:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3495123658451d0703f04a0c08394de0 SHA-1: b76aca5da194f4e5834ac90262a587476bbf1ad9 SHA-256: 5a66b9f1bed2e855228945578e926626f4d93887c8403201030d02441bc4b86d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/wix?keyword=canned+banana+blossom+recipe PDF link annotation
    • https://wuzovogupo.weebly.com/uploads/1/3/4/7/134720757/17b973629.pdfIn PDF document text
    • http://cleaner-inn.club/koxonezuluf9tnvf.pdfIn PDF document text
    • http://idealica-italiaofficial.site/22611982439din3u.pdfIn PDF document text
    • http://loxuzemifa.iblogger.org/cisco_esa_c390_datasheet.pdfIn PDF document text
    • https://monoxoni.weebly.com/uploads/1/3/0/7/130738852/wojutasumeviwaxelij.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/75715770515.pdfIn PDF document text
    • http://euroshopmn.space/monthly_calendar_blank0lvc7.pdfIn PDF document text
    • https://varivupe.weebly.com/uploads/1/3/4/4/134480773/2724ce9627.pdfIn PDF document text
    • https://gifenatewa.weebly.com/uploads/1/3/4/4/134480542/jejaram.pdfIn PDF document text
    • https://mabunamu.weebly.com/uploads/1/3/4/9/134902385/wufefewat.pdfIn PDF document text
    • http://fosuxevudutuviv.22web.org/rajoga.pdfIn PDF document text
    • https://sepuvomaxobaba.weebly.com/uploads/1/3/5/3/135311468/1999682.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://59b17237-83b3-47c6-9d40-f547da5b0434.filesusr.com/ugd/827194_c8c2c6f2a7a24fe9a40824c52465214d.pdf?index=trueIn PDF document text
    • http://fabonek.rf.gd/67268628237.pdfIn PDF document text
    • https://cf2e1f24-e5f1-4289-9567-3affce9c164e.filesusr.com/ugd/a4ea6c_45c8e587ce434f848f5aa5787fcd4bff.pdf?index=trueIn PDF document text
    • http://xowobovu.myartsonline.com/widuzidebipovuxiperanu.pdfIn PDF document text
    • https://21d44941-995c-48b9-956b-8145330e20d5.filesusr.com/ugd/577b75_b69a811ddc0644b5806471689c1086d8.pdf?index=trueIn PDF document text
    • https://6a9ecc2b-05c3-4056-8705-773ae6be8cdd.filesusr.com/ugd/7a359d_93caffe786a24a77b1a73e9dcd5c0ca0.pdf?index=trueIn PDF document text
    • http://fekofenuxekit.rf.gd/xokev.pdfIn PDF document text
    • http://faleferesevo.onlinewebshop.net/husqvarna_chainsaw_455_rancher_chain_file_size.pdfIn PDF document text
    • https://92e0cadd-ca3c-497d-ba7d-1aece6ee6da0.filesusr.com/ugd/008e52_68ce5f89803f44d189a482e2625638ec.pdf?index=trueIn 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_off0000df88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF88 5264 bytes
SHA-256: 79b34b31d3c755aaa3ac79be99d2ef2fb89e76a4666eec45b292cc34e3b0c2cb
font_01_sfnt_off0000f14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14D 10720 bytes
SHA-256: a9af3cb81d93902778af57f451a52a52c1d03f9a8c9c1a3add4d08999d2866de

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