Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd4ba0e0e56ceef…

MALICIOUS

PDF

121.9 KB Created: 2021-02-12 06:52:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: fbd5b709481f09905e3c8d134dd228e3 SHA-1: dea0ef03bc724c86b8e1488a80ba5ceecdff1414 SHA-256: ccd4ba0e0e56ceef41c85fb4fdfe40b24b53a4db69ed4f1d2d82e170c4129db6
104 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified as a phishing lure by heuristics. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of the malicious URL and the invoice lure heuristic suggest the document is designed to trick the user into navigating to a compromised site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://crophysi.ru/123?utm_term=california+corporations+code PDF link annotation
    • http://daravto18.ru/aldehydes_and_ketones_worksheet_with_answersowg1q.pdfIn PDF document text
    • http://idealicait.site/5503115270ohevt.pdfIn PDF document text
    • http://jewlgems.com/outfoxed_documentary_fullg6be1.pdfIn PDF document text
    • http://gratoraama.website/lagu_the_chainsmokers_new_song_20174so2u.pdfIn PDF document text
    • http://normaa-id.com/xajirugerexivetijiron7gm2w.pdfIn PDF document text
    • http://shop-kid-toys.online/dna_and_genes_chapter_11_worksheetupwla.pdfIn PDF document text
    • http://geleostone.online/93485558092pvcwu.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/giOicji/26108862758.pdfIn PDF document text
    • http://axecheat1.xyz/nirasujifizfr5d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://dapuseda.rf.gd/mejores_aplicaciones_para_editar_fotos_android_gratis.pdfIn PDF document text
    • http://kojosire.epizy.com/16131214364.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/vendor_agreement_format_in_word_india.pdfIn PDF document text
    • http://fenigubigona.epizy.com/the_way_home_movie_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/google_sheets_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/autothermal_reforming_kinetics.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/tibiwiwavebukutefikonogub.pdfIn PDF document text
    • http://rubuvajaroxe.epizy.com/elliptical_adverb_clause_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/relieving_letter_format_in_word_doc.pdfIn PDF document text
    • http://youtu.be/luDgb5vVHuAIIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18B42 4960 bytes
SHA-256: 3b6f4f6fc41baf210f8e064666d2fadeb422f9ea20d1cba3f845d9843aad2a9e
font_01_sfnt_off00019c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19C22 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0001a4af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A4AF 11432 bytes
SHA-256: 6e7e0b94365afebbdd87fca53f5cbc5d0c2717623a2d54ecd11936a3101890b2
font_03_sfnt_off0001cb71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CB71 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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