Malicious PDF — malware analysis report

Static analysis result for SHA-256 9789ee4c27bbb166…

MALICIOUS

PDF

73.2 KB Created: 2021-03-03 20:50:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 87a43e3fe66c6fc68a577e7d8243b9d4 SHA-1: 17712d018eaf4a62003dfb491741c786371938ae SHA-256: 9789ee4c27bbb16641b8adce71311a809cd14527ec4844a7d392af0c74f3a969
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to a suspicious domain, combined with the document body containing keywords related to product pricing, suggests a phishing or scam attempt. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious activity.

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://crophysi.ru/strik?utm_term=samsung+s5+active+price+in+ghana PDF link annotation
    • http://beririka.scienceontheweb.net/santa_rosa_county_bus_schedule.pdfIn PDF document text
    • http://rulabalelenifop.iblogger.org/gerofo.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/where_do_chicks_come_from_book.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/kipuxijagi.pdfIn PDF document text
    • http://jivavesomuviz.getenjoyment.net/gediwilokabaxunoso.pdfIn PDF document text
    • http://zixaxagewan.mypressonline.com/2478113215.pdfIn PDF document text
    • http://punavuvipufov.sportsontheweb.net/2246165603.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/neviwove/49800750020.pdfIn PDF document text
    • http://moxapowi.myartsonline.com/lesemexalisito.pdfIn PDF document text
    • http://xotaferuju.myartsonline.com/what_you_mean_by_autonomy_in_malayalam.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/rte_admission_form_2019-_20_karnataka.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/tds_challan_form_280.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/identity_thief_movie_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/arundhati_tamil_songs_masstamilan.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/isotropic_and_anisotropic_materials.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/microsoft_access_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/speakout_pre-_intermediate_workbook_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/bolujapijoro.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_off0000de70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE70 5604 bytes
SHA-256: 612586528d8b0524b511c3c68990ad3342c5d50aeb7f79fe93b7bbaa12ead6cb
font_01_sfnt_off0000f163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF163 11288 bytes
SHA-256: 2ca7c375ee47bb472e53e5e33e10c1e1ef5880a7cd5e7a1fc20d2930f576b005

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