Malicious PDF — malware analysis report

Static analysis result for SHA-256 30727e12859bf277…

MALICIOUS

PDF

69.0 KB Created: 2020-12-26 17:15:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ebbbf3494a14a06017def935d8e083bd SHA-1: b6e5b72e51292594b11b4952e5dda80a0142d1e4 SHA-256: 30727e12859bf277c24086d3af9961125dccc80903b765c137fd0d9a0d511ad5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/aws?utm_term=fountain+square+restaurant+guide In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/eed90e13-fbd6-4e65-9d71-67ac142ac266/doki_doki_monika_ending.pdfIn PDF document text
    • https://s3.amazonaws.com/moxekibupuru/gretna_middle_school_hours.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/widipi.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/32094951950.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7ae6186-13dc-4198-80b1-8d98c0087d94/30615021132.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/succeeding_in_college.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67866b0f-34e4-45ce-aeb2-9db49fdaeb88/movie_times_tifton_ga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f869a0d0-2341-4391-9ac0-37736c241686/cinema_baixo_as_estrelas_durango.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8445d374-7e8f-46be-b8f2-c95dd8209b6a/pogugotovoladovox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9067e037-b351-4630-a0a8-0df129170b67/97460578780.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/15941283540.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18915c26-1084-40d0-a8ac-d51bff5714c7/22797182520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c066007-3c3c-4e50-93a5-8c4f87532a83/voreme.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_off0000d2d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D0 5044 bytes
SHA-256: 5210386bbf60199d35b37d826bc354c669ad67010e438130f1ac4c23d6938d90
font_01_sfnt_off0000e3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FE 10320 bytes
SHA-256: 7c966ab8ed2fad8712480034e22f94649d3604da027a24120882e10b9d77219f

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