Malicious PDF — malware analysis report

Static analysis result for SHA-256 7df0b2582052e452…

MALICIOUS

PDF

74.3 KB Created: 2020-11-18 10:08:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 3b77a7354882446624c9de4dc064ea53 SHA-1: 11781cf4fbd1dc34c61307fd7f6453cfd1bae720 SHA-256: 7df0b2582052e4525d2a93a28042e21ba98887f2275eaf17f4daab70a2859227
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'baby shower return gifts' and an embedded URI pointing to 'trafffe.ru'. This URL is highly suspicious and likely serves as a phishing or malware distribution endpoint. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/123?utm_term=baby+shower+return+gifts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425511/normal_5fa08d687ef8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368762/normal_5f89a69f3092c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453764/normal_5fa5a91bb505b.pdfIn PDF document text
    • https://dutajidadu.weebly.com/uploads/1/3/4/7/134730474/tizedeniluxiz-gefowigujotubu-senunomikale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489440/normal_5fa9a6d576ecb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413462/normal_5f9f1d9871e12.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/bukhari_shareef_hadees_in_urdu_download.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/gixidepiwubotozapele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b95606d-066e-4cae-836b-e377de220e69/xanisadapego.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/tabovebesovenefuxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c35bbf0b-4610-4e9f-bb23-4e8dbecb979d/6773137342.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/burger_king_complaint_email_address.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/rasota.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/36840403342.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d84a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD84A 5264 bytes
SHA-256: f71124c7502d4e547586062a8a4d8f74844d580b19842c3f3b111b89f9848a99
font_01_sfnt_off0000ea44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA44 10612 bytes
SHA-256: 6432774dbd15c53f1a3a67139010d6f1575be22db777e7c6fe7ee011553e877f
font_02_sfnt_off00010e8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E8A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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