Malicious PDF — malware analysis report

Static analysis result for SHA-256 a50f933f55450369…

MALICIOUS

PDF

78.8 KB Created: 2021-03-01 20:04:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 80f8c1dc0e89e6980007dc083d3cb2b3 SHA-1: 8f2be88d007b83699a1b2f7057c7ca898883edac SHA-256: a50f933f554503699a7ec6709cf74f269345c967c0d941a86bd8d84daf1f02f6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that is flagged as suspicious and likely malicious by multiple detection engines. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL, 'https://baarspo.ru/wix?keyword=xflr5+manual+pdf', appears to be a lure, possibly for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=xflr5+manual+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366050/normal_60097985ee5d0.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/94978399216.pdfIn PDF document text
    • http://wijofotezopadik.medianewsonline.com/58113820840.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371240/normal_6032b1acca0e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428038/normal_5fe5fad76a888.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373517/normal_5fc69ca5aa1b1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://litopojijerel.epizy.com/inclusive_design_guidelines_for_hci.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/balimekivojijefoterok.pdfIn PDF document text
    • http://rujidafedisezu.atwebpages.com/time_of_contempt_explained.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/68910743389.pdfIn PDF document text
    • http://bevomozovedem.rf.gd/how_to_get_a_replacement_ebt_card_in_pa.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/54128739931.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/aspentech_platform_support.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/whirlpool_certified_repair_near_me.pdfIn PDF document text
    • http://xezujuwevan.epizy.com/sitarutafubasa.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/ammeter_and_voltmeter_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/analise_swot_livro.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_off0000f84f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF84F 5112 bytes
SHA-256: eb7ea8fac3dc0f1259d682aba43d8a1bacae865fd7e4063a48a8242243c6d822
font_01_sfnt_off0001099d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1099D 10660 bytes
SHA-256: 2dd2a07e724c0e914d2abda3f32e10a3151540a662289ba75e682d05f78ca435

Open this report in the interactive analyzer, or submit your own file for analysis.