Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cfe217ba9708ea2…

MALICIOUS

PDF

74.9 KB Created: 2021-02-27 13:09:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9909a6ce9777e7273c80b7315775d17c SHA-1: cb8bdbdf1daaedf894eba8f6f9f6061afa04f576 SHA-256: 6cfe217ba9708ea2faa73ceb1331f153a44e1c7395720717afd0a79b044b74f7
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'https://fokemale.ru/strik?utm_term=will+lost+be+on+netflix', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to Netflix and the authoring application, suggesting a lure. No scripts were extracted, but the presence of an external URI is sufficient to infer a malicious intent.

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
  • 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://fokemale.ru/strik?utm_term=will+lost+be+on+netflix PDF link annotation
    • http://kawolamekepe.22web.org/35409517792.pdfIn PDF document text
    • http://pafekusiwajida.66ghz.com/62688311974.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482426/normal_600fc67285675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413228/normal_601df1c948201.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410702/normal_601f839a34136.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417643/normal_5fffc24696d06.pdfIn PDF document text
    • http://gitilapen.66ghz.com/37474990628.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/bajuse/fuvezel.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/zunaboloruker.pdfIn PDF document text
    • http://luturuwuxas.epizy.com/ingress_prime_guide.pdfIn PDF document text
    • http://gajutovowitexij.rf.gd/mepafabok.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/11065791108.pdfIn PDF document text
    • http://muwosogada.rf.gd/50551523540.pdfIn PDF document text
    • http://rerivumisiso.rf.gd/todude.pdfIn PDF document text
    • http://buvozosasubatib.epizy.com/flower_of_life_sacred_geometry_string_art.pdfIn PDF document text
    • http://pinamagowejut.epizy.com/tozuzuwamasobosotowurufi.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/graphene_nanosheets_images.pdfIn PDF document text
    • http://bamasagure.epizy.com/wotewatevuwenitarosak.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/22403336478.pdfIn PDF document text
    • http://fugewad.rf.gd/taviruvuvokanugulot.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_off0000e9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F8 4676 bytes
SHA-256: a05115ccde62e20a364b4803d5c35b73663f16e0e0c4a7dde00828f687d96ff4
font_01_sfnt_off0000fa09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA09 10632 bytes
SHA-256: 609a0b3e45a658e535dc6007155e40110985665496b4fe5dc973b06cb02774ae

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