Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cc86060e8d973cf…

MALICIOUS

PDF

68.4 KB Created: 2020-12-27 04:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 7df27f80f735367efc4344987249a0ed SHA-1: 8a765400178f6043452c342f97ad519fd8974ecd SHA-256: 6cc86060e8d973cf78522014a576200a0b3749faefc6d24b21adb45ba75e8a2d
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, and contains a link to a known malicious redirector. The embedded URL, https://cctraff.ru/strik?utm_term=waves+tune+review, is likely intended to lead the user to a phishing or malware download site. The document body, though heavily obfuscated, suggests a lure related to a "Waves tune review".

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://cctraff.ru/strik?utm_term=waves+tune+review In PDF document text
    • https://static.s123-cdn-static.com/uploads/4425738/normal_5fe0c4f079eb6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530868/normal_5fbdfc8762204.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445116/normal_5fb2af009827f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444877/normal_5fe1ce2c23973.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/pib7Ahc/19864759721.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465565/normal_5fcf265cc8dd9.pdfIn PDF document text
    • https://naziwimirup.weebly.com/uploads/1/3/4/3/134371197/1353718.pdfIn PDF document text
    • https://neliwoxe.weebly.com/uploads/1/3/4/8/134871618/0d87de7cd5e541.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379482/normal_5fd77bef0b6b7.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/vitelitubovuluj/siwufigoju.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/5251905659.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/wodunipi.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/command_and_conquer_games_for_android_phones.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_off0000d315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD315 4812 bytes
SHA-256: 7cd817d976288f5fdb4e9f2274b74ae75aae86d02f3c925521159913ee9a065a
font_01_sfnt_off0000e397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE397 9876 bytes
SHA-256: 8175a8b48d3450b520f88c13d3962f2f004099f3bedd6e2a613504e49a994750

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