Malicious PDF — malware analysis report

Static analysis result for SHA-256 12785cf8a4d4d7e5…

MALICIOUS

PDF

80.0 KB Created: 2020-12-25 01:53:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7e001c96b7834e5cedae8086749f1991 SHA-1: b688f7386853c73016daba83561c3fd4f0bb66a6 SHA-256: 12785cf8a4d4d7e5ce6bde6c20a742acdffd224db4884a52133a5bdd046637ff
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure for a free download, which redirects to the URL https://trafficel.ru/aws?utm_term=behaviorist+theory+of+personality+pdf. This URL is flagged as suspicious and associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/aws?utm_term=behaviorist+theory+of+personality+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369174/normal_5fa793f315036.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/afabd286-59f8-4830-abc5-a63b6549755d/82411378358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae4145e6-fcb1-41a2-b183-3f83aca29f63/64398932639.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5be4a35f-7202-4745-b1d5-97e6c3f9bdc9/empereur_lempire_du_milieu_iso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c82f638e-87f7-4120-aef3-0ce154ad8d4e/shark_simulator_3d_poki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbdd022a-fe7f-4632-b2f3-9f31980111a7/gegiribepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f74fcd4b-c61c-4349-8809-fec5db327154/98094116271.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6157e028-502e-48b6-8738-c71b5d437ffd/5027476625.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba78a25e-22e5-4bfc-84a3-3cc88532cc26/nojod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e70c2e83-2dd9-496f-b338-3a39eff718b0/vujunidisogujutizuzuse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cebc90d3-038c-4892-acb7-3cb11da4759f/zigibugesaxogenigekejaxuz.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_off0000fdca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCA 5340 bytes
SHA-256: 98b15567dabc9af1bd7632cc541a135653fadaa9c0f361402533694e917f018a
font_01_sfnt_off00010fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FFF 10264 bytes
SHA-256: 6007bbdc3f508b68a4bd7bbd83d4b5c9edbcca25f3a5cf55076e2aad331cad90

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