Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d5273718f8fd6e…

MALICIOUS

PDF

74.8 KB Created: 2021-04-04 11:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: db718073ec40c3e9284479a2ca247be7 SHA-1: 753523bca4b0f91198b9be0be12bcf138c303a2c SHA-256: d0d5273718f8fd6ec84fe2d9fe6996e99a16633a3d0171e772392496d17e6d1a
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://soxebez.ru/wix?keyword=how+to+install+dios+mios PDF link annotation
    • http://3gusevshop.space/30010593990jsdmq.pdfIn PDF document text
    • http://klosheff.xyz/break_it_down_barney_style_marinesed9a8.pdfIn PDF document text
    • https://rubuvewoxuvima.weebly.com/uploads/1/3/4/8/134873715/bamuf.pdfIn PDF document text
    • https://fomofasagulak.weebly.com/uploads/1/3/4/8/134860280/surelanofagixis-regogasirajab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386595/normal_6067be729b53d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459481/normal_60540136f2ba5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421630/normal_5fe4ff1267f2e.pdfIn PDF document text
    • https://cdn.sqhk.co/konafomaz/aw2jjFY/45180807806.pdfIn PDF document text
    • http://pejelurim.getenjoyment.net/english_book_of_class_6.pdfIn PDF document text
    • http://peguxukeziku.sportsontheweb.net/sociology_of_mental_health_and_illness.pdfIn PDF document text
    • http://floradoma.net/706074988682h8q7.pdfIn PDF document text
    • http://hihikane.space/basic_electrical_electronics_engineering_notes9mf15.pdfIn PDF document text
    • http://itmax.info/kujedujosawogeduzelalk1juy.pdfIn PDF document text
    • http://feelslike35.com/sovipyyawc.pdfIn PDF document text
    • https://cdn.sqhk.co/sodonojoj/ahbVHlF/kaxewubuxonupigegigutonu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374708/normal_6007c5ad779c2.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/yWieMhj/56901298464.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nukivamo.myartsonline.com/liquidez_corriente.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_off0000e6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AC 4928 bytes
SHA-256: 261bfa58f03332f05a7b017b201b6c1d2c450dbbc6ea0d1e0480182aac3fb159
font_01_sfnt_off0000f76c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF76C 11444 bytes
SHA-256: e6bfe18174c372f84ab5cd0a046f1bd95a9cf220f9cf98bfbd20ab3ebb50132e

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