Malicious PDF — malware analysis report

Static analysis result for SHA-256 119759a0c7501467…

MALICIOUS

PDF

68.3 KB Created: 2020-12-15 21:43:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 26b36e4d0bd38ff25e279ae0eed5c9cd SHA-1: 131f144157a3d93617359eb4759ac489c4c52897 SHA-256: 119759a0c75014677565b0e03fd78bffb557b97e5804e3d0d8ee29b6c072b059
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=wheat+ridge+high+school+yearbook In 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://static1.squarespace.com/static/5fc2f09fe2fce462bc994906/t/5fc7e413e2d0360af45ca3d1/1606935572974/xetinuwuwomibefijun.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/conectar_whatsapp_web_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bfed47e-f0c4-4667-a9e6-5112614fb65b/5461655553.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/giwexasirupebesafipojubiv.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/physics_kinematics_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/hattian_bala_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/kanelerofolebijogepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffe5bb2e-ffc8-4144-8018-ea004c254eaa/kanala.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/b_lazy_diner_car_show_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/zozedimo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5175d2be-acf1-4fce-a1e6-9a026f51f1d4/83093142982.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/baragatapexitikevag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f111eada-d111-4c2a-b570-fd386be1d619/gazimipofasinunabotonojer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58d828b4-9f78-4878-8e89-e4b20e0e3da2/shortcut_to_strength.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7d55149-1907-483e-822c-167446a1aecd/kawasaki_bayou_220_service_manual.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_off0000bf3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF3D 5204 bytes
SHA-256: 2e78ef1b6cd779ee9b85be34c9d385bed710287aa110c517705133b56d8cd022
font_01_sfnt_off0000d118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD118 10896 bytes
SHA-256: 09fda1066c35e63f12b61f72b06d7e28b0fb9b39d40efab717bff122924183fb
font_02_sfnt_off0000f684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF684 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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