Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d2f5132b856414d…

MALICIOUS

PDF

101.9 KB Created: 2021-01-02 05:28:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: bf1fe4609efab53ae68a60b963c9b50c SHA-1: 5b345507818e0e8edaffc2461e072e2200a1abc9 SHA-256: 2d2f5132b856414d1923a8f4f9960fbbcf4bee81733b6ecd00e5c0f67502ece9
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/123?utm_term=dad%2527s+guide+to+wdw+fastpass PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444374/normal_5fc1a13af0a36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492546/normal_5fd792509dc1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_5f8e7dc10a477.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402710/normal_5fb8057c7e886.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450731/normal_5feb4dafc5ade.pdfIn PDF document text
    • https://cdn.sqhk.co/jawutuwek/fxiiKjb/molux.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/gorajikunobixi/lateral_thinking_puzzles_with_answers_personal_development.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/30104785593.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/cengage_organic_chemistry_book.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/tasemidigodanajojuwora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dc98df5-2ba6-49a5-94f5-52e223b34e7e/do_bacteria_have_cell_walls.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/oceans_rend_collective_chords.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000139a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139A2 5208 bytes
SHA-256: 549183d06b240a2db20dce6394a38f9c84f14f1bb3c038159d31066cf1a0c560
font_01_sfnt_off00014b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B93 11536 bytes
SHA-256: d120e375c501fdba4a07a5ca3a39d290f3702cd51df16f37077ca0e96c39ce26
font_02_sfnt_off00017344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17344 16656 bytes
SHA-256: 31e8d4e555bddd277242392e8433c43e7669463b9a7ee0963605dad949c83a14