Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4b1e5905da0e64b…

MALICIOUS

PDF

69.6 KB Created: 2020-12-17 21:24:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: ba9d17ca7dec52efcf5fe244e499a3b0 SHA-1: 78db8d94002fba6a2024875c455ca08fd679300c SHA-256: e4b1e5905da0e64b46edc73a387bfeb8c62dbe481348fa1b549d03cf8eb55566
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains an embedded URL pointing to 'traffset.ru', which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'Dnd 5e battlemaster rally'. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly indicate a phishing or malware delivery attempt.

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://traffset.ru/123?utm_term=dnd+5e+battlemaster+rally PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc350c32e537a05ef18a0f9/t/5fc6c4c9a907d7439cc4b58a/1606862026308/santorini_dream_villas_greece.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea21e2fce462bc8c0024/t/5fc364879ee0f32b87beaf91/1606640776883/21840148843.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/47544296624.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/37526033557.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/law_of_attraction_in_hindi_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf54663f75b16643cc0147/1606374510225/north_valley_league_bears.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/king_single_fitted_sheet_target.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c1119f3-de1e-480c-941f-b8923891025e/el_yazs_fontu_indir.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6647da5bc066edfcb2426/t/5fca1c5155485c3109b962fe/1607081043250/jogorawoxinipixizuvuzodo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffcc36609fd0ee78c2f31/t/5fc39c00bc819f1cf44772ab/1606654982572/dale_seymour_publications_answers_word_challenges.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/45425582940.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e844cd1e280355d45049/t/5fc331da08845d0924f1d76f/1606627803494/religion_in_panama_central_america.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc543fd3dfdd95b60f1e399/t/5fc71e9fb7521d608a3f1393/1606885028860/homescapes_level_2405.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc58a00bdb33045eee1a39e/t/5fc9ccbf52b5874c859184a2/1607060677988/island_wars_2.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/53592007824.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_off0000d4ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BA 5336 bytes
SHA-256: de0c68b55c4aea2795ba1639e391be0f2f392dd00fa0f239a3920d460e35e230
font_01_sfnt_off0000e6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D0 10204 bytes
SHA-256: 211077ee6a2568449cfa5ab6fb29fd2aa06a93e0eccc2e54b6bfca0e9b64a212

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