Malicious PDF — malware analysis report

Static analysis result for SHA-256 8105c9282c532d14…

MALICIOUS

PDF

187.9 KB Created: 2020-11-25 08:56:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 1f9ca8bfd16893ddb7018e78ca723a7c SHA-1: dc6fc88672abb4d2d7b035591b0d2f6b523ba7af SHA-256: 8105c9282c532d141f463b52fd29598235e68b5b271f6d9d3a9ed6567c2b3514
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is disguised as a 'Metroid prime 2 walkthrough'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=metroid+prime+2+walkthrough In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378604/normal_5f9d2037209a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380882/normal_5f8cbde2bb623.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387419/normal_5f8e571d81528.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412154/normal_5fb91e91551b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385417/normal_5f93508f87a3b.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/9da41b8d-dac0-4413-9bde-6ebf6a8fc808/71756477540.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0d91bf9-9807-477d-8e0d-91eeb525b8d3/mandala_con_operaciones_para_colorea.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/chemistry_class_11_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/4044793303.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/men_in_black_international_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/kujobozifip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b12d92e-8fd8-4f57-b032-0a3d1dd6e1a2/5795401997.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/91696674493.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/680e2542-2da5-468f-ab5d-8978591a1e71/kapitenuloxiwi.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_off0002a670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A670 5488 bytes
SHA-256: 94cfb60ff4fa02b6bd3a5e8047c1a2d58bcd40c18cc3ac76cd0c309d4e44a32c
font_01_sfnt_off0002b90d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B90D 12700 bytes
SHA-256: 10ef7f5c8eb07627dfbd129c913b8be362127e08d65f524617d937f2a1828835

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