Malicious PDF — malware analysis report

Static analysis result for SHA-256 cedefd80495e56e3…

MALICIOUS

PDF

65.1 KB Created: 2020-11-19 06:25:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 114514960cfd18a24d4196fec0a93300 SHA-1: 982e5ee6dc2dd9017382042d586dfb230ea8301d SHA-256: cedefd80495e56e309d3eeecfe6d267f5b9e3910b98d70be6ddaff6ebd4b8387
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 0.9998

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://trafftec.ru/123?utm_term=toy+story+4+full+movie+123movies PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380413/normal_5fa7193e28e1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478393/normal_5fa8f94ed0686.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/47b2d8ca-1945-4208-97a8-86dafa111019/fort_bragg_middle_school_fort_bragg_ca.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/927db5b0-6fb1-421a-8df0-ed0669297f2a/kuperozi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/051f2776-de13-4a66-b01d-78cc610f5592/luvebekugovevadivam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aeb29db-d9be-4db9-9749-bfa93684701b/71107034497.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e456f6c1-392d-44f9-b15b-feeba0777cb3/29558960597.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c99be14-d714-46eb-acb6-a9b2abd1d536/43507089385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfd3d309-47a2-45de-9c15-324a56a92637/lefapumesomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e7cc1b-1a19-4779-9bd7-98693e4ee4fc/pamaguresadisarekumevu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4b7630b-da80-4c08-9dbb-fdf7d4c1aae3/wimuwoxekaludafowapasuvax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4a220f2-c721-40a1-aa13-95410afbe934/vopemasoputurif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94148994-3d3c-4740-b374-d867a5ce1298/binigumol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e588db38-9a05-44f6-a6cb-10e64088f705/75456505721.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_off0000c3d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3D4 5248 bytes
SHA-256: ae7d21d4192d94f9e64b5fdb9c230d2f23fd84db813dec7e360fd0e3477f2193
font_01_sfnt_off0000d5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B7 9916 bytes
SHA-256: 1c137d20742b18fec69c2d5ea98f85eb6d9a412debd5f8ad224ed89f0a528797

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