Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fa39315a126423a…

MALICIOUS

PDF

74.7 KB Created: 2021-03-10 10:31:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 7cc2a5f488170e53187676fe5a038034 SHA-1: ab38d3e93072f5f5355891c235d59ce136b035d9 SHA-256: 6fa39315a126423ae353995ddc78780b683f35084aafc2dd08d61d8ca45242f1
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing site disguised as a repair service. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely intended to lead to further malicious content or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=repair+jenn+air+gas+cooktop PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366321/normal_5fd8932a5e89e.pdfIn PDF document text
    • http://pimifawimonidij.mywebcommunity.org/62667596189.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500883/normal_5ffb2ee85d689.pdfIn PDF document text
    • https://cdn.sqhk.co/linotepibubi/6icighi/instagram_captions_for_couples_hiking.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477147/normal_5fef505f4f8b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407795/normal_6007462fb74c5.pdfIn PDF document text
    • https://cdn.sqhk.co/wazotifuk/Lsja16I/dmv_license_plate_search_california.pdfIn PDF document text
    • http://napodosawukezob.getenjoyment.net/46455815861.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415327/normal_5fd14b7eb6aec.pdfIn PDF document text
    • https://cdn.sqhk.co/lexuxeza/ihieggT/35110904791.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/fenimowol.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/7SEiatE/rowuse.pdfIn PDF document text
    • https://cdn.sqhk.co/derepinejabi/FLgcRhe/badlands_western_movie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384460/normal_602197b471668.pdfIn PDF document text
    • http://bukuminuwakub.mypressonline.com/13660562183.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/bupaxomu/tetobus.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/lineare_gleichungen_aufgaben.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c789a33-83dc-4d9b-bbb8-ec6b2fc257ff/bafoteno.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/mozedunalev.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/37335561038.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/amadeus_e-_travel_management.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/read_allegiant_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/432d8482-bde9-4aeb-9b79-69431fd12f66/book_of_pook_audio.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_off0000e905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE905 5216 bytes
SHA-256: 6b4895b26f335941ed4af802681c99d0364759acb8a30f254af20f18f0b3da3f
font_01_sfnt_off0000fae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE5 9940 bytes
SHA-256: ae8061cbd89690ee9628e912e0779f27f498d16433c01e98a716d014bf7ce28c

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