Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0642fa985950a7…

MALICIOUS

PDF

67.9 KB Created: 2020-11-18 12:42:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0a20e1928ec1573e197b52fdb5208253 SHA-1: de124c374974079b7615805c9fa120299736ac92 SHA-256: fb0642fa985950a78c7da2b2a8c8ef58018378dfd24e95ee544cfb1e06db6596
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafftec.ru/123?utm_term=meadowlands+sports+complex+in+east+rutherford PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403276/normal_5f9908f5b584b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483586/normal_5fb4640097c03.pdfIn PDF document text
    • https://sakuvajavabese.weebly.com/uploads/1/3/1/3/131383602/b163c326025d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420745/normal_5fb47450b0c2e.pdfIn PDF document text
    • https://futokiwusilo.weebly.com/uploads/1/3/4/4/134458686/6539401.pdfIn PDF document text
    • https://pegebitejujag.weebly.com/uploads/1/3/4/4/134445458/saxunulofawega-mazepidamo-mafavebat.pdfIn PDF document text
    • https://pukapukipek.weebly.com/uploads/1/3/4/6/134636258/letebanivugabokozaw.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/abc25d1a-152a-4892-a1f5-0f503e64b36c/canon_u052_error.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cf72353-bfdd-450a-bded-87d0de6c7b4f/22621178772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d591f5f-029a-42f5-894a-7a1a8fb1b2ab/joxexodorakeponike.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_off0000cb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1C 5560 bytes
SHA-256: a9640dc26073422981fb5c4281588ddfb4bb653e4afde688af157392bd313ef5
font_01_sfnt_off0000ddfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFE 10936 bytes
SHA-256: 28f4812c895bf95f882f6f2b220b35e9b37c96ba3c8b7a3be158d445a8081fd4

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