Malicious PDF — malware analysis report

Static analysis result for SHA-256 c96a6869d6eb4efc…

MALICIOUS

PDF

88.9 KB Created: 2021-03-16 08:03:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 51c7b02c7f229454a4cf40d16884af1f SHA-1: 141a2a464fcc61861fe22c2e0c187b11f862aa72 SHA-256: c96a6869d6eb4efc9824379f29b8faf2d34bc8a07b2f6caea9786df0b17d997f
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. 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 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xezojetit.ru/aws?utm_term=how+many+chapters+in+percy+jackson+and+the+titan%2527s+curse PDF link annotation
    • http://boketizabujig.scienceontheweb.net/lubatofasogozasinofi.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/39156855333.pdfIn PDF document text
    • http://baxemoge.iblogger.org/49677837019.pdfIn PDF document text
    • http://gumidaz.medianewsonline.com/what_is_portia_de_rossi_worth.pdfIn PDF document text
    • http://jemulobapamiwu.mywebcommunity.org/esri_story_map.pdfIn PDF document text
    • http://lojupubevodi.22web.org/nivaxapenuwokude.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4c491ff-e901-46b2-8c27-8e62e223e334/71022977148.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/personal_pronouns_worksheet.pdfIn PDF document text
    • http://xamukipadu.myartsonline.com/balistica_forense_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/22195456740.pdfIn PDF document text
    • https://ec679cc6-872a-45a8-b2fd-b1bc8f6ddb77.filesusr.com/ugd/d1d005_63c668b27c6340d1b18583eef1a3a98d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fifuto/hindu_marriage_proposal_biodata_format.pdfIn PDF document text
    • http://dopovis.myartsonline.com/romeo_juliet_quotes_leonardo_dicaprio.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/tiwunap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1547907d-9011-4a29-9b15-8883aabbc513/the_essential_rumi_epub_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/60718704453.pdfIn PDF document text
    • https://72b50e20-f79f-40ca-96b4-24bef83e308f.filesusr.com/ugd/1a1092_91c489bb962044b5a6c2fdfafca87b29.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb583c4d-0928-40d6-84c3-881ffa8f2c35/craftsman_150_drill_press_parts_manual.pdfIn PDF document text
    • http://sadozejeko.myartsonline.com/amhara_population_2020.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_off00011e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E4C 5608 bytes
SHA-256: ecbe7946f530a15351fbc384659c80283284a919a834debfc621d5eadfcb88a3
font_01_sfnt_off00013152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13152 10324 bytes
SHA-256: 2420542b3e40726c929cbd2676ebfe08b5629f62f7e369631642b2c69da2e30e

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