Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f176b79696e6e6a…

MALICIOUS

PDF

71.2 KB Created: 2021-03-05 14:42:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d3ec112db4d5f0f16fae5b6f224f5f57 SHA-1: 2bbb00c724c11f94137f06e9d3da366965e5b5a9 SHA-256: 8f176b79696e6e6a584283fbd272df03c8a03fed2e992b5b5560d4fdd0d2c412
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. The document body, though heavily obfuscated, contains references to 'Stanley fatmax tool chest wheels' and application metadata, suggesting a lure. The presence of numerous embedded URLs, such as 'https://bologen.ru/infin?keyword=stanley+fatmax+tool+chest+wheels', indicates a likely attempt to redirect the user to a malicious website for phishing or malware distribution.

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://bologen.ru/infin?keyword=stanley+fatmax+tool+chest+wheels PDF link annotation
    • https://cdn.sqhk.co/fusifanux/egginHh/pepper_com_black_friday_deals.pdfIn PDF document text
    • http://gixipures.sportsontheweb.net/76701121755.pdfIn PDF document text
    • https://cdn.sqhk.co/wegodimumod/sgizthi/93800926166.pdfIn PDF document text
    • https://cdn.sqhk.co/tibidimewako/fhhjbgc/chainsaw_sharpening_tools_for_sale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393925/normal_5ff7f9331acb4.pdfIn PDF document text
    • https://cdn.sqhk.co/ratufewebu/xhbljjd/road_trip_printables_for_toddlers.pdfIn PDF document text
    • https://cdn.sqhk.co/zazerejaxu/ihfgfs1/25_amazon_gutschein_code_free.pdfIn PDF document text
    • http://xogunajeraxuda.mywebcommunity.org/sewap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487419/normal_5ff1c5efe84a2.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/gWjbGNX/drill_master_rotary_tool_kit_for_nails.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/idibTjg/79260625353.pdfIn PDF document text
    • https://cdn.sqhk.co/senosekagoko/gUidgwF/39156124416.pdfIn PDF document text
    • https://cdn.sqhk.co/bitenutugiw/5AtmB30/fizanujos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478664/normal_5fe637adf199d.pdfIn PDF document text
    • https://cdn.sqhk.co/xovepejegosi/b4iigin/xomodemavatasakiraditulo.pdfIn PDF document text
    • http://wipababotuzuke.iblogger.org/93521607734.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458848/normal_600bef9eb8592.pdfIn PDF document text
    • http://nakenanizugaxit.iblogger.org/calculo_integral_dupla_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD962 5392 bytes
SHA-256: 730ab7492294f1ad53de89cc4b8e1f6fefb071c8962a9e9c1a653ca568802cae
font_01_sfnt_off0000ebb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB6 10800 bytes
SHA-256: 97d34e0eb0a0998ac4f3e4f0cfd35c4141e1673ad5f192ac6c931cb2af05c5b5

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