Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f5dca30e2fff61f…

MALICIOUS

PDF

67.8 KB Created: 2020-11-09 17:50:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 0d95f4410bfc0915fc2a37645445b3ef SHA-1: b9ebd176c5c047a1b39857e845ecbe56cf040673 SHA-256: 4f5dca30e2fff61f76ffe3fa3f2e2514cf27fb9db55ae8590d14a099bb2d2f6b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to 'traffking.ru', which is likely used to host or redirect to malicious content. The document body, though heavily obfuscated, suggests a lure related to a geometric topic, consistent with social engineering tactics.

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://traffking.ru/aws?keyword=area+de+triangulo+equilatero PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416661/normal_5f9b935dc0d07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366017/normal_5f88b39f9cc40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369630/normal_5f9f2c24504f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f8726fe21b14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382618/normal_5f9c9ec8484fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5f9f82bd23d7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_5f89277059979.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410731/normal_5f9bdd3b01e54.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/b7113423-d832-4db0-bccc-450827c1e93e/19111236545.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a718cbe-f3b0-4488-b5a0-11855cee4695/1060174184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10dbd163-1e07-4b49-a438-eb29d7180e37/xidosuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6794eb7-61ff-42c8-921a-cfbb6f69615d/65740074258.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1db2bf5-d23c-4763-b46d-6cd57fe1dfc7/46526298334.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_off0000cb88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB88 4932 bytes
SHA-256: e4e15975039d78e7a186a2d6a8e991c128fe2f65a65ab44125b14ce9580a3b73
font_01_sfnt_off0000dc51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC51 11576 bytes
SHA-256: 14553c2c107eea92d9c1712ad8e992e845d80fdec772fa3d2acb0a115cd2f3ff

Open this report in the interactive analyzer, or submit your own file for analysis.