Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3de906919aeef6d…

MALICIOUS

PDF

61.7 KB Created: 2020-11-25 18:35:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 3e01ea904da98a71b90756b98e506aec SHA-1: e80988648cf1c47719a9711c176445b6dd69e417 SHA-256: b3de906919aeef6d5ad46f40807ad3d83aa8381da6e006b869e7e541776a47a8
154 Risk Score

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 'ggtraff.ru'. This URL is likely used to host phishing content or distribute further malware. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious purposes.

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
  • 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://ggtraff.ru/aws?utm_term=el+camino+del+artista+pdf+gratis In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366316/normal_5f983209ccbbf.pdfIn PDF document text
    • https://tolixolosunep.weebly.com/uploads/1/3/4/4/134403343/todezo_mesef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403685/normal_5fad3f7250a75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501514/normal_5fad930646eb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412391/normal_5fb58e6d3c34e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5f9b46eec536a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457296/normal_5faef1ab372a4.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/917765b6-71fa-491c-996d-2012389a0482/nuziwosuvivuno.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/florida_athletic_sports_physical_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f05a8dcc-f21d-43bf-959b-d3d03a27bb7f/y-cam_bullet_hd_1080_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/farmacos_inhibidores_de_la_anhidrasa_carbonica.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/kel_tec_pf_9_price.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_off0000b6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D4 5432 bytes
SHA-256: 27696b406d0cd7a68fb53fbeb8cfb7ce8eae22374c8f357e9cc09c8705798c0f
font_01_sfnt_off0000c93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93B 9696 bytes
SHA-256: c5cd0002b47e190314b6146ccce7a872d2f1542bdb023920e39f2b38448a2af4