Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c5445266b5d9335…

MALICIOUS

PDF

72.7 KB Created: 2021-02-16 17:01:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ff9f29f7df6656e66cf642b3a9f4ce37 SHA-1: 5e080e741c4c8b4b7fc09916a3a793fde07ac436 SHA-256: 6c5445266b5d93351f7d57cafcbc89df524277bc5cf0b2b26dcb197235ae065b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://maypoin.ru/wix?keyword=south+park+theatre+2019+schedule PDF link annotation
    • http://tur8osale.site/moxebafavisino7dt6c.pdfIn PDF document text
    • https://wimofitadaxota.weebly.com/uploads/1/3/4/3/134362004/6712843.pdfIn PDF document text
    • https://nupigefaxobabu.weebly.com/uploads/1/3/1/0/131070289/9771478.pdfIn PDF document text
    • https://winateminapalem.weebly.com/uploads/1/3/4/0/134041456/1690333.pdfIn PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/6839781.pdfIn PDF document text
    • http://uber-global.com/54273994818o68xi.pdfIn PDF document text
    • https://mewotetinud.weebly.com/uploads/1/3/5/9/135956813/sapupewevogake.pdfIn PDF document text
    • http://losinglotterynumbers.com/1882499913021d02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417543/normal_6014807ed4718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372383/normal_600f4aee0ec3e.pdfIn PDF document text
    • https://xamatetafuxu.weebly.com/uploads/1/3/1/6/131606968/zirisudabage-tekaz-nivazitale-guwuniloluvufe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366044/normal_60278efc9c126.pdfIn PDF document text
    • https://pusotovoxidelo.weebly.com/uploads/1/3/1/6/131637553/punib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379726/normal_5fea288d6e487.pdfIn PDF document text
    • https://mukojemugasab.weebly.com/uploads/1/3/5/3/135314074/5605670.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413125/normal_5fc7eea3e467c.pdfIn PDF document text
    • https://menufaron.weebly.com/uploads/1/3/0/7/130775522/fopafusixoradan.pdfIn PDF document text
    • http://egosikenclub.com/jobezubita7t9f5.pdfIn PDF document text
    • https://fosevikotik.weebly.com/uploads/1/3/1/6/131637163/6990945.pdfIn PDF document text
    • https://lojodisomu.weebly.com/uploads/1/3/4/0/134042672/3645171.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gokevoluwizob.rf.gd/sowurilupoxuvasamimevafus.pdfIn PDF document text
    • http://xizabefozuk.rf.gd/barnsley_council_application_form.pdfIn PDF document text
    • http://rokalugafujat.rf.gd/fatadudoxubuxijirerop.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_off0000dd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD88 5808 bytes
SHA-256: f8e7bf9230e9572fccb5e8d2f5baf9dca1646bc4ef8ea1bc1cac38ff6c476f7f
font_01_sfnt_off0000f148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF148 10532 bytes
SHA-256: cb3d85a699e0dd4ffa26d65155ead6a90a884897746e6c9e1dbdc4ec4c02214d

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