Malicious PDF — malware analysis report

Static analysis result for SHA-256 70f3154fbc43da80…

MALICIOUS

PDF

75.7 KB Created: 2021-02-18 04:40:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e1df1b6af7272f8b9e7dbf524efeb9fb SHA-1: d861c30e611aa68660fc4f88184d152421a89ca7 SHA-256: 70f3154fbc43da808d9c03a1cba716c2e566db04cd4a6306af8657e5534b1a64
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to Craftsman garage door keypad programming instructions, which is a common tactic for phishing. It embeds a URL pointing to 'baarspo.ru', likely a malicious domain used to host phishing content or malware. The ML classifier and ClamAV detection strongly indicate malicious intent, and the PDF structure itself is flagged for potential manipulation.

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/strik?utm_term=craftsman+garage+door+keypad+programming+instructions PDF link annotation
    • https://cdn.sqhk.co/futevanu/hfjeghl/6250900117.pdfIn PDF document text
    • http://pekebanabotariz.66ghz.com/gijebujanug.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/Rdjgajj/happy_birthday_images_for_men.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370304/normal_6002f6e14976b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369788/normal_60142fee9347f.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/2hcYidi/chicken_asparagus_goat_cheese_pasta.pdfIn PDF document text
    • http://xisulekotitis.iblogger.org/23721163841.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/womirofop/article_writing_format_class_9_ncert.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/bootstrap_form_layouts.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/third_grade_addition_properties_worksheets.pdfIn PDF document text
    • http://kevulapoxokimif.rf.gd/39479698239.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/autocad_2013_64_bit_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/lavexukadoxep.pdfIn PDF document text
    • http://tubaduk.epizy.com/kikajom.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/halo_beyonce_sheet_music_free.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_off0000eb4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4B 5516 bytes
SHA-256: 08bf7eb539d7664331adae7541e8d27d32d64413dc709591389ab19b2f59b982
font_01_sfnt_off0000fe08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE08 10388 bytes
SHA-256: f346a75b2fdc89b381d3f84e85ada5c7aa497d1ad8ceb07badeb941f888c00b7