Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64a9d86ef6257e1…

MALICIOUS

PDF

73.9 KB Created: 2021-03-12 22:10:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb2bbea57ae54068c2cbdb1c7f3b63a8 SHA-1: 99e4d23fb09ab5c926887505b96ff66683147405 SHA-256: f64a9d86ef6257e1010082d36c6d3626f55d3511bdb8a1012510d1dd382a5f45
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a suspicious domain, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a malicious document, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/strik?utm_term=how+much+do+financial+accountant+earn+uk
    • http://giwitijudaleka.mygamesonline.org/bring_up_the_bodies_hilary_mantel.pdf
    • http://pekibexuvipeve.scienceontheweb.net/difference_between_capitalism_and_communism.pdf
    • https://nudesobaxoxis.weebly.com/uploads/1/3/4/6/134666739/sotolozolaborazak.pdf
    • http://xemizawufogutuf.scienceontheweb.net/vamumexilu.pdf
    • https://cdn-cms.f-static.net/uploads/4389794/normal_603a5781426f2.pdf
    • https://static.s123-cdn-static.com/uploads/4481684/normal_5fff0f3ca2968.pdf
    • https://cdn-cms.f-static.net/uploads/4494866/normal_6039360488a9b.pdf
    • https://wekegakusujesal.weebly.com/uploads/1/3/4/2/134266445/08744e013.pdf
    • http://jemulobapamiwu.mywebcommunity.org/popegipurimoweweg.pdf
    • http://tesekal.mygamesonline.org/criterion_related_validity.pdf
    • https://xaforexu.weebly.com/uploads/1/3/0/7/130775472/2968210.pdf
    • http://parazepurafeza.medianewsonline.com/54076069346.pdf
    • https://tadizusojad.weebly.com/uploads/1/3/2/7/132712436/nabujax.pdf
    • http://xakaderinetatu.mygamesonline.org/40930951246.pdf
    • https://kirurivujet.weebly.com/uploads/1/3/1/4/131437430/9867364.pdf
    • https://xelisiji.weebly.com/uploads/1/3/4/5/134524002/wobafuk-rivirisuzajo-xatinebazatib-fetemez.pdf
    • https://gejosubirimo.weebly.com/uploads/1/3/0/7/130776575/1510502.pdf
    • https://dozunetad.weebly.com/uploads/1/3/4/4/134472758/ninapubasasek.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vapite/manual_de_procedimientos_hach_dr_900.pdf
    • https://s3.amazonaws.com/fobupojowojon/gorakuwedodekadovobuboju.pdf
    • https://s3.amazonaws.com/nuxulikiwab/kosopovozopa.pdf
    • http://telusomabufa.onlinewebshop.net/teaching_with_power_3_nephi_17-19.pdf
    • https://s3.amazonaws.com/lusegokaves/76599759469.pdf
    • https://s3.amazonaws.com/zuvovoxigumuz/informal_assessments_in_physical_education.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e54a.bin
06b96fe7a900d2843da38a3900ac63b30093dd70b763aff6130fbc10e3d5d40a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE54A 5200 bytes
font_01_sfnt_off0000f6da.bin
7b597d644ac8be22d5736a6d68c9be910464e9fbb97b2303a56409cac020c191		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DA 10372 bytes

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