Malicious PDF — malware analysis report

Static analysis result for SHA-256 8948ad98d220cae5…

MALICIOUS

PDF

184.8 KB Created: 2021-01-16 12:32:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1af3aefb153d327ceb092507800438f2 SHA-1: b33822fb04b6887723758e40ad882f786034a122 SHA-256: 8948ad98d220cae5e91451f78ade6c60ea67ac37e7f3468ffb80eac1f88f3246
154 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a critical alert for a PDF redirector link to 'traffine.ru'. The ML classifier also strongly flagged this PDF. While no scripts were explicitly extracted, the presence of a malicious redirector URL indicates an attempt to lure the user to a harmful site, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffine.ru/aws?utm_term=bitolada+dicionario+informal In PDF document text
    • https://cdn.sqhk.co/jutirupot/bPFFjic/chess_rush_meta_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475570/normal_5fabbc3b5ac4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376372/normal_5f8ed1db22922.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/jdZidhg/doodle_jump_download_nokia_3310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387709/normal_5fad7384c4e75.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/SjeAgeu/vemuneloxofezakumuwa.pdfIn PDF document text
    • https://nakigere.weebly.com/uploads/1/3/4/6/134608851/abd3cbad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482012/normal_5ffcad2cea440.pdfIn PDF document text
    • https://dekudabor.weebly.com/uploads/1/3/4/8/134893804/nujakut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_5fb9cb57abed0.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/fejenijovekozu/92285232920.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/bts_love_yourself_answer_album_version_l.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/33251631421.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_off00029b91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29B91 5036 bytes
SHA-256: 3f95047a47f8962af0df4e86519509420de807d21b247cfc11592c327e7e0d47
font_01_sfnt_off0002aca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACA2 13784 bytes
SHA-256: df7b2d083659e069a9a4673f95d05ad1a7ea103119522361c8f42e2bbbbe46ff

Open this report in the interactive analyzer, or submit your own file for analysis.