Malicious PDF — malware analysis report

Static analysis result for SHA-256 219208f7726e0f0a…

MALICIOUS

PDF

66.1 KB Created: 2021-01-14 16:24:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f09547b6ebc36d925ee99d1a1fa68d72 SHA-1: 7c6e4dabfdf94a010aaf62f73d16f7d251b811fa SHA-256: 219208f7726e0f0a4f932b3add0768ed7635df2bee0ff49995ee7b8dfe3bed9f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text fragments related to 'unlawful detainer answer san diego', suggesting a lure to trick users into visiting the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/123?utm_term=unlawful+detainer+answer+san+diego PDF link annotation
    • https://site-1172276.mozfiles.com/files/1172276/online_reading_activities_for_kindergarten.pdfIn PDF document text
    • https://site-1173205.mozfiles.com/files/1173205/48511528315.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393018/normal_5fab041822676.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373239/normal_5ff303d229686.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mozedijiz/38836372979.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/jikidebafi.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/jojusupavazaxuxoboliwajim.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/annual_credit_report_free_transunion.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/rehearsal_dinner_invites_minted.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/missouri_employer_s_tax_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/gpu_architecture_book.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/gelibawiwupitidibugitisol.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/concepts_of_mass_in_contemporary_physics_and_philosophy.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/41369063458.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA65 5040 bytes
SHA-256: 5acb4553a126575de02343893365af9ad7f096d2e1c5a476e0b79c1ee037ea16
font_01_sfnt_off0000cba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA6 9904 bytes
SHA-256: 5090505861f06ab572d52381051dc4be3a8bc6f60b26c45462999d99a8a26c08
font_02_sfnt_off0000edb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB2 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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