Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67417144b9219be…

MALICIOUS

PDF

59.5 KB Created: 2020-11-23 12:40:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 33143982d563e0b08f7d5459770ac38c SHA-1: 47699f6a266e10670d881358d742fd6465902c44 SHA-256: e67417144b9219be572848feae0b5a9ccf8c02d75e1c91df88e1ace0e83fcec3
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffset.ru', which is likely a phishing or malware distribution site. The document body, though partially corrupted, references 'Chuck E Cheese' and location information, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://traffset.ru/123?utm_term=chuck+e+cheese+slc+utah PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376098/normal_5fb385ef30a5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501789/normal_5fbb500c1196b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369138/normal_5f8eb29998f12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380229/normal_5fb9bd0113af1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376126/normal_5f8fdc055c91a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367299/normal_5fa790d0a0ec6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411219/normal_5faaf0dc818f8.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/97e733f2-0ccd-4637-bca8-12ff881db961/classic_car_fenders.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b427aa86-027d-4c73-b569-696b8d69140d/27410714582.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/99466987349.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_off0000adfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADFD 4760 bytes
SHA-256: c16d721611fd153b84d21ebed481f471f6e42aad172cd5a6d4b31bf799bf2178
font_01_sfnt_off0000be29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE29 10512 bytes
SHA-256: a23ec51298968a663cca463c018f218f2d49bede253a27684acf9b242f622816