Malicious PDF — malware analysis report

Static analysis result for SHA-256 b48485b791b40714…

MALICIOUS

PDF

65.3 KB Created: 2020-11-06 05:37:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bef31cef3058d75f280bf99019bedd9c SHA-1: 9e4e3850c2e9db3f23837e944cb3fe4ef4a977d8 SHA-256: b48485b791b4071463da7abfcc0d9bb2d1f545aa13bc9ae462ad8b181d42c8f6
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a high-severity heuristic indicating it's an SEO redirector for phishing, linking to the URL https://trafficel.ru/strik?keyword=excalibur+soul+eater+fool. The ML classifier also strongly flagged this PDF as malicious. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to lure users to a malicious site, likely for initial access via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://trafficel.ru/strik?keyword=excalibur+soul+eater+fool PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427799/normal_5f9c99f19dfed.pdfIn PDF document text
    • https://zitidatuviwe.weebly.com/uploads/1/3/4/4/134493200/zanizasemitetupabozo.pdfIn PDF document text
    • https://woxejisuwu.weebly.com/uploads/1/3/4/3/134322210/86e2960ac3e51d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f95f2137c89d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443799/normal_5f9dbfa008454.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/9573696e-f689-4d40-bb75-bf719ac5e5a4/download_kudi_menu_kendi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d6cf937-3b92-4501-a347-98fa00c7122e/date_time_group_dtg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58bc3e7d-8661-47d6-9808-109e2f578b42/alabad_a_dios_marco_barrientos_acord.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca75a9a-70fa-4dd4-b3c2-4185a1e6dd03/deluwapopavajalijiset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1084c38e-0ecc-4219-88fb-fa2cee4d489a/dolphin_pro_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1ac7769-43b0-4435-8cff-2df64ebacbfd/89786677165.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000091bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91BD 8156 bytes
SHA-256: ba33fcc9e0ad3f293ab012cf247f70143662bd3a23c7ee88ceb2c5e9ab5fb6f2
font_01_sfnt_off0000ad0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD0A 5040 bytes
SHA-256: 7fcb0bc77f52dfe222617d73e2a6fa684a58f9f833314c632dcf02cdf0d35df8
font_02_sfnt_off0000be46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE46 10916 bytes
SHA-256: a3d673dce846f8db72de49ef8abe39b6c68615960b291acb85fc6bcdad7cb1d2
font_03_sfnt_off0000e2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EB 16132 bytes
SHA-256: 60f53b17f7925ac1818ac9336ea58fd206fea48872b5377b70e6fb8114080afd

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