Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebac7e603df76f12…

MALICIOUS

PDF

68.0 KB Created: 2020-11-18 14:11:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 884a3e27d2e5e54e7fe85c9f61f9d7b7 SHA-1: 93a6115f09582cb856c04712dc8e4a2d6c5478e1 SHA-256: ebac7e603df76f1222ac5eef8bbcc97dd1164de0e7feb970bc95b9a77429b4ad
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://trafffe.ru/aws?utm_term=group+counseling+informed+consent+template PDF link annotation
    • https://funiwulew.weebly.com/uploads/1/3/2/8/132814073/8764825.pdfIn PDF document text
    • https://sitizoxibe.weebly.com/uploads/1/3/4/3/134317871/wisajirilalel.pdfIn PDF document text
    • https://nadevakijod.weebly.com/uploads/1/3/4/4/134490940/7438406.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408330/normal_5f9cb34c3c0d6.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/gedimuta/96492512914.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/xuwumilejopeku.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/62279888740.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/2013_ap_calculus_ab_free_response_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94fc3349-7e1f-468f-9b2e-64ea8cb0f17b/el_camino_del_heroe_literatura.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/business_visa_invitation_letter_template_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b610be89-263e-4510-a10c-b5d8e5f28446/mewas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18c90ff8-1acc-47cb-a107-83ae207d6a62/eagles_game_score_tonight.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/cppib_annual_report_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/12_biology_notes_in_hindi.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_off0000cd4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4E 5508 bytes
SHA-256: f70589d32b77612f8a7f187f47684754eab48a59603f39d0e3865b7490927d26
font_01_sfnt_off0000dff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF5 10288 bytes
SHA-256: f95a528d30d9f3744c5d5c6337f44535bce7d225abe9e58470f2b36f480cf2ac