Malicious PDF — malware analysis report

Static analysis result for SHA-256 793a331243547b70…

MALICIOUS

PDF

68.2 KB Created: 2020-12-18 14:22:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: d48765f54bf8e892d66686b7cb8f8d7a SHA-1: 6a59c2a587135051f195a85648b09d15b02c9879 SHA-256: 793a331243547b70b29071556a5114cf0372d45c092546bf71cac7cb0e7d610f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/123?utm_term=south+beach+diet+book+target PDF link annotation
    • https://komulobuzol.weebly.com/uploads/1/3/4/6/134618259/tudebapolezobawu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374533/normal_5fbaad8644703.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_5f8b40bb67bab.pdfIn PDF document text
    • https://bajekilirevi.weebly.com/uploads/1/3/4/8/134868337/2721628.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478950/normal_5fb3e5c169d4d.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/c87425b0-0db6-42c4-af8d-92e6e31db3e2/space_marine_codex_2019_vk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdfa8587-bca2-435d-9268-eb67499f7de7/yC3BCksek_gerilim_tekniC49Fi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdfcfaecb86110b1356bd8/t/5fd6560e154d727871e9b4db/1607882255282/using_update_statement_in_sqlite_in_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdc826ac3cfda2dcf0aa550/t/5fdc970238e73f2e3d78863d/1608292098921/xuzizazinulozafito.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1511b56-0d5e-4158-97ab-73acb81eee32/69440177543.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02af3edd-8c84-4812-bd43-dabc242c24b0/98439984772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91ac4b37-1e1b-4276-bcc7-f1c20c3ee64c/82230353221.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_off0000cdc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC7 5300 bytes
SHA-256: c3f2b91eb8a358a73df03069e5dd095c5074fe7631468e2922646892605858e2
font_01_sfnt_off0000dfc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC3 10804 bytes
SHA-256: 8d6b23050258d66f0ad5492c543361084759d2509bdf91b0d9eb4dc5dcfeebf8