Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb5f7c53d05af59…

MALICIOUS

PDF

73.5 KB Created: 2021-02-20 18:20:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 8be0ee8b196767ee82664765ed8c7d74 SHA-1: 735824dea73b66594e80bf5501fd698ddf3b3eaa SHA-256: 7eb5f7c53d05af59ab7f2c84bf1ddfe244b2fa651e0596b92136c0ca2487412a
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one critical heuristic identifying it as a link farm. The primary external URI points to 'leonvi.ru', suggesting a phishing or SEO spam attempt. While no scripts were explicitly extracted, the PDF structure and link farm heuristic indicate malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/123?utm_term=how+deep+does+a+rabbit+burrow PDF link annotation
    • http://meleworofazob.22web.org/baby_infant_food_guide.pdfIn PDF document text
    • http://mabirimelu.iblogger.org/detipobegagofi.pdfIn PDF document text
    • https://soferivajateru.weebly.com/uploads/1/3/4/6/134650686/8570068.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/hchdahj/heavy_industries_taxila_logo.pdfIn PDF document text
    • https://cdn.sqhk.co/lasanamemego/gg3U1ih/36249664454.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/dZhbcZX/bass_music_player.pdfIn PDF document text
    • https://jemiliwolozeli.weebly.com/uploads/1/3/4/8/134870182/kotilirelepenu_welob.pdfIn PDF document text
    • https://cdn.sqhk.co/motanunika/eiahFjf/livongo_health_stock_chart.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/fedufiporara/zekafofufosumamefup.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/media_creation_tool_fr_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/javuwi.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/febutabedigegimiluremugen.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/rifivepaw.pdfIn PDF document text
    • http://liwusetokabozil.epizy.com/book_of_mormon.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/guxelifofok.pdfIn PDF document text
    • http://vizawog.epizy.com/make_fake_pregnancy_report.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_off0000e686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE686 5112 bytes
SHA-256: 9b69a6df56571d266f60ecc1ce65b123dabe418c8442abd0589966448de9b8c7
font_01_sfnt_off0000f7fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FD 9724 bytes
SHA-256: 9d13076772b3136f2e47222b8704b03b30a9c1b4582896645602d06721d3b02f

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