Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0401bb570f76605…

MALICIOUS

PDF

68.2 KB Created: 2020-11-21 02:20:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b8d38322c7f05d0d964d3a4502c4d935 SHA-1: 262d304116bf19067faa4549baf3ab30020964fc SHA-256: c0401bb570f76605d883df6e729ab9df3839bc3c6534d47fa913fe8fb05dea47
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'gettraff.ru'. This URL is embedded within the document, suggesting an attempt to trick the user into navigating to a potentially harmful site. The ML classifier and ClamAV detection further support the malicious nature of this file, indicating it's likely a phishing or malware delivery mechanism.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=prince+george+hospital+medical+records In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369309/normal_5f8ca5b925324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_5fa330ffb4ac6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426263/normal_5fa7c6c793bdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470977/normal_5faa6e0772f9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411922/normal_5fb5ecc5e0fd1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fezenur/gonodonadaxila.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a9e7997-46bc-4b94-8bdc-92543d13f9e4/pelabujosumumij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/275dbb7e-785f-45eb-b12d-17e89d020634/davumewuzemipun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b83d859f-ab7a-4f9c-81a9-215510d8f625/hipoteza_a_teza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37c0af58-94a6-4e33-9874-b92e0faaa0b4/7093525887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04dc50f8-061c-4fb2-bdac-12a001831ad1/alliance_flight_path_badlands_vanilla_wow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/153f36fe-acc1-4b38-936f-b46be24e293a/fscapture_for_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63442486-1c3a-4ea5-8e46-81457d17f42a/portnoys_complaint_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c26c2ed9-f3e9-472b-9678-daf17df37859/exercices_corrigs_structure_des_molcules_1ere_s.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_off0000cc62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC62 5488 bytes
SHA-256: 5e81154b98e4f9f926b99c42a4ddfdef8656662cc5be6e5e9c8c38f45ec72bd0
font_01_sfnt_off0000dee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE2 10352 bytes
SHA-256: 49f2f92bcd40eb4b857e041a69caa1ec7f5295d9c7f02b8a28fc4cac19c85afc

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