Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5697b23d0b7c74…

MALICIOUS

PDF

74.2 KB Created: 2021-03-16 04:51:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 1f301171ef1a53b860decb4b2c3f49c6 SHA-1: b1c991f37fca2d9d1d3924ce09bee69e661a5d53 SHA-256: 2e5697b23d0b7c746247fedbcb8b6ecd32869af3968ae556f171b026a786c116
96 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. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=microsoft+excel+2013+odbc+driver+32+bit+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476432/normal_5fcc225109203.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408987/normal_604fdd2005d15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451033/normal_6013c9b938740.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422147/normal_603936ab0abbf.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/what_is_the_role_of_sports_captain_in_school.pdfIn PDF document text
    • http://wepisoja.mypressonline.com/manual_programador_rain_bird_esp-rzx.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/6300217431.pdfIn PDF document text
    • http://gukiduwonaxinef.getenjoyment.net/72396622754.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/sepawi/what_is_the_purpose_of_a_literature_review_in_a_research_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/sutalilosuwagil.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/gabaxujedukatokenizeb.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/common_idioms_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/245084405.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/62005248466.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/will_there_be_a_season_5_of_the_crown.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/copy_bookmarks_from_chrome_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/homeshop18_rajasthani_bedsheets_combo.pdfIn PDF document text
    • http://zuputes.atwebpages.com/kabukununoxowuzarajafomi.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/71771304912.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/ielts_404_reading_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/kubedukowug/dodge_caliber_dashboard_lights.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_off0000e304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE304 5868 bytes
SHA-256: 0474eb4a1052df4635a369b7654b1e6dbdcf24722f8bc6bb7073ff1f04fcef88
font_01_sfnt_off0000f72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72E 10648 bytes
SHA-256: c0ebf6ca63b81b8aae6e46051c77aad3754660235203791fe9a49d4969256892

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