Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c48d339688896f…

MALICIOUS

PDF

74.0 KB Created: 2020-12-04 16:12:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-18
MD5: 53c3c8b244502d78e275f34167c7d685 SHA-1: 8c1993166369f0372e6df47f620ceb9bdeb6d4cf SHA-256: 14c48d339688896fa5ab553d5be39aa3f4066e2d2bb908fd016d1e69f7693daf
136 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is a phishing lure, using an image to redirect users to the external URL https://trafficel.ru/strik?utm_term=oyster+mushroom+spawn+amazon. This URL is likely used to host a phishing page or distribute further malware. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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?utm_term=oyster+mushroom+spawn+amazon PDF link annotation
    • https://s3.amazonaws.com/bulujono/47220232846.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/ileostomy_reversal_diet_guidelines.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420230/normal_5f9ed1b7ab134.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/2124986875.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/34155183302.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/uji_statistik_parametrik_dan_non_parametrik.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/55344252320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379602/normal_5f8b4acf5498c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501486/normal_5fb55c57c02dd.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/vaste_song_dj_king.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375209/normal_5f8f5a23c3d3b.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000d96c.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000d96c.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00010d05.bin)
    • https://uploads.strikinglycdn.com/files/246ad2ef-4370-491a-a3b9-27689c764157/37910249458.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d56d7188-2945-4b4d-a762-f71b0268f905/weloju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9602e11-ae2d-4071-bf3b-6dfa20060ff2/91491622016.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 extracted file (font_00_sfnt_off0000d96c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d96c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96C 5132 bytes
SHA-256: 3d5ff5d2f29e3f9e03c5f4b060b30385a555d68d52899d74ca1b281f3be61d6a
font_01_sfnt_off0000eacb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACB 10056 bytes
SHA-256: e8fe216efbdbd4b0fe4094bc6bf0a1b8477e0323fa82cfec2c33618a6c18ee3a
font_02_sfnt_off00010d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D05 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71