Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d249d170df829ca…

MALICIOUS

PDF

72.0 KB Created: 2020-12-01 08:47:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 34af228a8203d28bd1823da1b91b1c3f SHA-1: 156dc2654c24cc457764f1266d7f0238646f1c41 SHA-256: 7d249d170df829cae5ef09951368af077dee942da01d612d47f689e0cfb53ad6
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://gettraff.ru/aws?utm_term=pioneering+portfolio+management+pdf In PDF document text
    • https://sixapinipuso.weebly.com/uploads/1/3/1/3/131384402/xadom.pdfIn PDF document text
    • https://tumogifizutuvo.weebly.com/uploads/1/3/4/5/134527103/1fc95f12186.pdfIn PDF document text
    • https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/nemokevebitu.pdfIn PDF document text
    • https://juladuwupib.weebly.com/uploads/1/3/4/7/134763366/721276.pdfIn PDF document text
    • https://nevedaroxizewav.weebly.com/uploads/1/3/4/5/134592578/zarikusipewelet.pdfIn PDF document text
    • https://neboxikadifi.weebly.com/uploads/1/3/4/5/134588308/35cd49fa5.pdfIn PDF document text
    • https://vabusidi.weebly.com/uploads/1/3/4/7/134765039/3439899.pdfIn PDF document text
    • https://volosodavebogo.weebly.com/uploads/1/3/4/8/134873809/womiboza_jarudifawusix_jimegomoj_natotope.pdfIn PDF document text
    • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/fuzimokim.pdfIn 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/ac692779-c84f-4fd9-97c8-d075e50468ff/65740518796.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/kizosexov.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/i_just_wanna_be_average_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f1cc84d-695b-4644-8cad-60a026ea31e9/dragon_age_origins_duelist.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/watch_aquaman_123_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/tititemufigurebu.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/echo_reservoir_utah_elevation.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/lotos_ltp5000d_difference_brown_and_red.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/2726861752.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_off0000dd5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD5E 5184 bytes
SHA-256: 7a15ee8a55c3495d45bbda6cb706aaec95534868ff70fc442a5e2e1392f5e4f9
font_01_sfnt_off0000eeef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEF 10504 bytes
SHA-256: 97fcdab614cf3481c1b1e8d82da1b6793d0c05dae1ac5937aed78d50c2e04627

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