Malicious PDF — malware analysis report

Static analysis result for SHA-256 60609ece11c7ef98…

MALICIOUS

PDF

71.5 KB Created: 2021-03-09 11:48:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 70a8ab7cede85f70935174428580ad64 SHA-1: d56647276f400aef4e5611f96bd355ef0e449a9d SHA-256: 60609ece11c7ef98f1640f7c9c1b207646cdbe41c1ce3409ef227ea134c1d54d
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gimoguvi.ru/strik?utm_term=why+is+my+printer+printing+blank+pages+canon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414173/normal_6045f56a83f51.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452624/normal_5ff2963ded21e.pdfIn PDF document text
    • http://lebepufu.mypressonline.com/56667229798.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381740/normal_603dfdc9b600a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421329/normal_600638486f086.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fd7a53fe-11c1-4e60-83ad-ac1bb997268f.filesusr.com/ugd/5cf23b_a11e6bd9abc94089831e392b77764197.pdf?index=trueIn PDF document text
    • http://rafedorexi.epizy.com/certificate_of_completion_template_no_border.pdfIn PDF document text
    • http://lutigofuma.epizy.com/vifujogebonesur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0694b6a4-aae7-4a53-8dbc-279d328f0538/transformation_of_quadratic_graphs_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/zagikiwoze.pdfIn PDF document text
    • http://liwobeve.rf.gd/48120760570.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e996485-e9af-4529-a87d-8555a3e22f99/why_does_my_samsung_fridge_leak_water_inside.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91ae7e34-f3b8-431c-8ab1-ac08f34d45a1/kabobikom.pdfIn PDF document text
    • https://2a4c341d-9af7-4f89-b48a-1b926ad6ced7.filesusr.com/ugd/dd6616_2d26c7945c4840b3b865c520fcf66168.pdf?index=trueIn PDF document text
    • http://pujumek.myartsonline.com/76665996018.pdfIn PDF document text
    • http://romudiforexove.epizy.com/data_flow_diagram_powerpoint_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/lutte_contre_le_gaspillage_alimentaire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/278581af-2a05-4eec-89f0-26240a9d12b1/95133362307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a8fac0c-35db-4a82-af72-005c2a573f01/whirlpool_warranty_contact_number.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_off0000d85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD85A 5668 bytes
SHA-256: 87393685bd705f416f14d56cf099c04c35a44135f0a2542f86d3e2b11c49404f
font_01_sfnt_off0000eb87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB87 10836 bytes
SHA-256: 32af85db5e21ea735712517cb0026000288860c9e0a0379118619026c5e3a107

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