Malicious PDF — malware analysis report

Static analysis result for SHA-256 c67cbeb00d41afd3…

MALICIOUS

PDF

69.8 KB Created: 2020-12-15 01:59:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 884c9e3ee07daa3122959afae029f144 SHA-1: 2f2cfb972485d1cf4cce2f2e353a841376490a77 SHA-256: c67cbeb00d41afd3d3ea0babbeb75263dc885674687c3199799f9bccd7faaf9b
96 Risk Score

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 0.9998

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=among+the+thugs+pdf PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/craigslist_dutchess_county_ny_poughkeepsie.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/apk_editor_pro_apkpure_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/derunawivibefolijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daf39e89-a042-4b2f-ba44-341c9fe05709/difisofanowajiwiseni.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5994cea4a794d56652742/t/5fc7b3db4f9413233b2af7c3/1606923228069/high_speed_pinball_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07ebebf8-743a-4571-a75a-6eddd51ee21e/30705365956.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/wetarelatubeburoluw.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/25739416744.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/262858d4-562d-4043-99ca-41c65a2f6aca/xewovewumojimi.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/pdf_file_online_merge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9404d222-8a5f-4ffe-ad29-d475dfe4ea78/wiki_steganography_tool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6bf25d1-7b2c-4c9d-b729-470343958529/51493558444.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3647d6609fd0ee7a157c3/t/5fc680bc3485235c86a8bd7a/1606844622055/6964081666.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c519c1d9-93fa-4f23-84b3-09d60972996d/florida_land_trust_agreement.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_off0000d3ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3EC 5104 bytes
SHA-256: e9b0bfc057373197142e85ccc5d899c3a36b26fbc875c2ab25f6738fe3c4952f
font_01_sfnt_off0000e534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE534 10896 bytes
SHA-256: 37bfee80468059a2f7ff85cf346bf9c0e84edf6d62f97bf89e9851466fea93c8