Malicious PDF — malware analysis report

Static analysis result for SHA-256 316b2dd06a43250b…

MALICIOUS

PDF

561.7 KB Created: 2021-03-15 10:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 1b00b40c5ab726fc22cd0cdf59c83fe9 SHA-1: 048a7cf6b65a01f1e22056c18950b6e3b6de7192 SHA-256: 316b2dd06a43250bd9f90361a13a697f3086775222e7457d2cc3e7faa06ab3ac
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://botokaw.ru/wix?keyword=manual+transmission+conversion+kit` suggests a phishing or credential harvesting attempt disguised as a document about a conversion kit. Although no scripts were explicitly extracted, the PDF format and the presence of external URIs are common for delivering malicious content or redirecting users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7638

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://botokaw.ru/wix?keyword=manual+transmission+conversion+kit PDF link annotation
    • https://gilurabad.weebly.com/uploads/1/3/0/7/130775641/3490956.pdfIn PDF document text
    • http://mavigawika.scienceontheweb.net/64613556685.pdfIn PDF document text
    • http://esclub.pro/831121406464latg.pdfIn PDF document text
    • http://vesajob.getenjoyment.net/72913140154.pdfIn PDF document text
    • https://vefoduga.weebly.com/uploads/1/3/5/3/135302220/7205405.pdfIn PDF document text
    • http://policyhelpcenter.com/pre_calculus_grade_11_teachers_guidekl90r.pdfIn PDF document text
    • https://selenaza.weebly.com/uploads/1/3/4/8/134878333/8720825.pdfIn PDF document text
    • https://zirovosenes.weebly.com/uploads/1/3/4/3/134316706/6082f7e668f64e.pdfIn PDF document text
    • https://ziriponu.weebly.com/uploads/1/3/2/6/132696112/lunagaxesosuzo_nuvob.pdfIn PDF document text
    • http://tekdouche.xyz/bootstrap_4_boilerplate_template3q3ot.pdfIn PDF document text
    • http://fringigejy.site/rijazodamowupodixazixhvw65.pdfIn PDF document text
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/vuwebobikulixakizu.pdfIn PDF document text
    • https://panonalosisewe.weebly.com/uploads/1/3/5/3/135316392/rudaju.pdfIn PDF document text
    • https://noxolawozin.weebly.com/uploads/1/3/1/4/131452883/ridowik.pdfIn PDF document text
    • https://vabuxijipureg.weebly.com/uploads/1/3/4/4/134476882/9d4bf087.pdfIn PDF document text
    • http://wordsidepost.top/zujebibuzapamgbab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4e3016d-6aa8-4c61-9a40-d7750837540f/how_to_draw_step_by_step_for_beginners_easy.pdfIn PDF document text
    • http://nimuzujonigidu.rf.gd/how_to_pair_avh-270bt.pdfIn PDF document text
    • http://jezesukawug.rf.gd/mavurezosofuwol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c448967-01db-477d-8cce-7ee33704fe51/infant_optics_dxr-5_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6637d99b-d442-4d0d-81c1-822324f0b26e/19147566218.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/846e498b-e485-4bca-bb66-12f235fa9257/xbox_one_wireless_controller_custom_uk.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_off00087ba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87BA9 5076 bytes
SHA-256: dace2ab4bf0c95344aa81bcae8ea3049d069101d9c810e2ac9226263bdd68b77
font_01_sfnt_off00088cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CF6 11872 bytes
SHA-256: 360d6100c4222a4da10fee4b632c72975b83b22fe59269724394010a0210cf13

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