Malicious PDF — malware analysis report

Static analysis result for SHA-256 5db6cba038b76acf…

MALICIOUS

PDF

70.5 KB Created: 2020-12-30 03:55:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 668b743abbfc7564a0c04c10d98aa6b8 SHA-1: 0d2f80a9d4315f142034274c79c2c825e08cc01c SHA-256: 5db6cba038b76acf15d7b1951181c6b67aff06e622d8df64dc2c7859a8f3f979
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffmen.ru'. This URL is likely used to lure victims to a malicious site. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffmen.ru/strik?utm_term=hold+near+tag+ios+14 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374372/normal_5f8a9ee935c7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_5f928f8bb54d9.pdfIn PDF document text
    • https://tenimevu.weebly.com/uploads/1/3/4/3/134315692/ae94ff188aad672.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415739/normal_5fcc448febdc1.pdfIn PDF document text
    • https://vizomitula.weebly.com/uploads/1/3/4/2/134266598/97d46f047.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/chjKhem/ligukakudufofuximoguvido.pdfIn PDF document text
    • https://cdn.sqhk.co/pezolaje/fgfBETO/guwalabavelokesidurar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_5f95b34bab913.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/2a3e59d4-4ad0-47e5-8d07-142932592047/xuvati.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/filmywap_2016_movie_mastizaade.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/crossword_puzzle_answers_for_yesterday.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1654979f-f8cc-4c83-bf70-31df30d7ba7a/jazamofisopesidok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9ee26df-ddac-4bf7-8bf4-40d7be6a0e32/pozeledozo.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_off0000d661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD661 5096 bytes
SHA-256: a66e31921786170df845884ca409064cd2f766500c339d68806e1d5f8b22517c
font_01_sfnt_off0000e7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C6 10892 bytes
SHA-256: 38ae3a415d8c5a1b103a6bed63224c96c5714218bf85acd76b8c4c176502db04

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