Malicious PDF — malware analysis report

Static analysis result for SHA-256 07869d615950a3cf…

MALICIOUS

PDF

79.2 KB Created: 2021-02-15 18:09:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 0896a989242587bf7d534c998e98b466 SHA-1: 728e75c6cb44590770b4a2f46b1b12430ec3fab2 SHA-256: 07869d615950a3cfe81ccb5274cba142cc971e5de4f7c8bd0d12e57d0d91db85
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://jottigo.ru/strik?utm_term=ruger+air+hawk+owners+manual` is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://jottigo.ru/strik?utm_term=ruger+air+hawk+owners+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371806/normal_6010b682e7269.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482188/normal_600d529158b21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481061/normal_5fdc51b203583.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474746/normal_5fd899a5df32c.pdfIn PDF document text
    • https://cdn.sqhk.co/xoraxuvonaf/jfggiiG/90502382053.pdfIn PDF document text
    • http://vupiziriwopo.22web.org/96772288773.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_5fdac751b38f6.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/nagudo/beer_bottle_labels_template.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/12135718781.pdfIn PDF document text
    • http://bupagaruwizuzu.epizy.com/catering_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/insanity_flyff_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/35665983816.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_off0000f8a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A5 5260 bytes
SHA-256: 904e6ca188f79cc2b4d4c24ef2f4c58900eb119a9b9724a765ab8e4077a35ac0
font_01_sfnt_off00010a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A74 11128 bytes
SHA-256: 5ff324ec7802ce77ab97e659ce4f295f75668b5a1cae59424cc6ff8eb429a20b