Malicious PDF — malware analysis report

Static analysis result for SHA-256 61c360b16d47390f…

MALICIOUS

PDF

78.1 KB Created: 2020-12-27 17:00:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 514124cae1c5f4232780131282eaf001 SHA-1: 96712e92fb7031c0ec37d5312cd3c1d5cd5cf7fe SHA-256: 61c360b16d47390fbd8bf836740ad87210e6d4cb498cff89f532b584502126de
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious site, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/strik?utm_term=business+standard+newspaper+price+in+kolkata PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4468819/normal_5fc85918f3792.pdfIn PDF document text
    • https://cdn.sqhk.co/futidiwe/fyepibt/cheap_white_living_room_furniture_sets.pdfIn PDF document text
    • https://cdn.sqhk.co/vikeguzag/izjiyjf/luwusugimozodajiri.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/1de7b59a-b8a9-4f7b-a5ce-95cfd7d08731/59386918500.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57022dc2-ea1d-43b4-b6d3-2428893dd1dd/jejidope.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/15732374427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06287085-7481-4d49-b78c-4f4bb28d065a/kudepugigavosus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86f0281e-8191-415c-8f8a-4923717796f1/a_litany_for_survival_poem.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/intermediate_music_theory_quizzes.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/install_apk_file.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/sandhills_community_college_continuing_education.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3294eec0-4c8e-4eac-808c-1adae1d840b0/79831753507.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d5d4627-a502-4ef0-bb2d-9bd9f8d81c6d/56000851394.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/afrontamiento_psicologia.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C9 5156 bytes
SHA-256: a61e1abde1bb3c19acf413cc944a7f2a2e384d9b9fcfda52cf7b28fe6fdb8fbf
font_01_sfnt_off0000f968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF968 10464 bytes
SHA-256: 4116669f0711cf89464c2102813ada5b8f70f697b134ae4259fb343c05e67cc2
font_02_sfnt_off00011d60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D60 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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