Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce60e419106f3eb0…

MALICIOUS

PDF

74.8 KB Created: 2021-02-26 04:15:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: ad8d14fa61b1ef95916805c060a81882 SHA-1: 0c35124b7d842fbb92bc27b922eb4ec2b07e00db SHA-256: ce60e419106f3eb00cfa99b668e5255be521bee2da65e1585ef32acea236ecb7
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains numerous embedded URLs, many of which point to disposable hosting or link farms, suggesting a phishing or scam attempt. The presence of external URIs and the overall structure strongly suggest the document is designed to redirect users to malicious sites, likely for credential harvesting or malware distribution.

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 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://seumenha.ru/strik?utm_term=are+autopsy+reports+public+record+in+california PDF link annotation
    • https://cdn.sqhk.co/kasuvapexal/fJlsjhf/are_poblano_chili_peppers_spicy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473938/normal_5fcc5fceb3567.pdfIn PDF document text
    • https://cdn.sqhk.co/wudawagirus/Bjam0jc/how_to_cake_it_2019_videos.pdfIn PDF document text
    • https://lanekugufer.weebly.com/uploads/1/3/5/3/135351315/litixibi.pdfIn PDF document text
    • https://sivaxawisebirim.weebly.com/uploads/1/3/1/4/131407763/sevapu-kutemi-tekumanusuvo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374519/normal_60331a0e5cde0.pdfIn PDF document text
    • http://rizaloripejo.iblogger.org/sagudezadexoxadi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493209/normal_6001a75e8a707.pdfIn PDF document text
    • https://xojakonokixamu.weebly.com/uploads/1/3/1/1/131164577/deragi_tesirofaz_fugusudoluri_lelijivujadigal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bufiziwo.rf.gd/weather_report_bilekahalli_bengaluru_karnataka.pdfIn PDF document text
    • http://fidotetunuxezi.epizy.com/25670568667.pdfIn PDF document text
    • http://jimanujomubil.epizy.com/nogukowuvev.pdfIn PDF document text
    • http://xatidewivi.epizy.com/animal_farm_vocabulary_worksheet_answers.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_off0000e889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE889 5380 bytes
SHA-256: 3534621101497052de9104645e0a52f254f2af9435de508eb2673bbda889d273
font_01_sfnt_off0000fae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE5 10136 bytes
SHA-256: 589185bea83630860ad829bfa1513d09618fc40a249f5f18532081aa0cabfdda

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