Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f0825641051906…

MALICIOUS

PDF

76.0 KB Created: 2020-11-18 06:42:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-18
MD5: af618b95e8a06a3f911a6b5f3507d6b7 SHA-1: f68fd8d7378b4778f14735d8d7b68816e6cc46b8 SHA-256: 26f082564105190694666e968ad42fab5e18c0b140d6ccbc61bbdce5bd915e03
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://traffnew.ru/123?utm_term=what+do+job%2527s+daughters+do PDF link annotation
    • https://s3.amazonaws.com/jamokaroxoj/kinalunakopexuleji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480889/normal_5fa798cba40c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476446/normal_5faf2980b56bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381320/normal_5f99c9f7bdd7b.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/azure_blob_json.pdfIn PDF document text
    • https://doliwejivus.weebly.com/uploads/1/3/4/3/134353379/5285119.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486374/normal_5fa81269022d3.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/my_hero_academia_season_1_ep_18_funimation.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459921/normal_5fad134c82113.pdfIn PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/xavafezodenagi_mewapib.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/adenitis_cervical_en_nios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_5f89ced56e8c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449777/normal_5fa102d595fb1.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/better_business_bureau_complaint_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/sifotumosimu.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000def7.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000def7.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0001148f.bin)
    • 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_off0000def7.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000def7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF7 5048 bytes
SHA-256: 4d370b760d393a995a21d745e8f26bd53fc9f3a2a5fdda857c7bd97afe619b8c
font_01_sfnt_off0000f04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04F 10744 bytes
SHA-256: e42c05d2389b7a0be87dc944a29f29a5fcaa0c14c84c9c968776d3fe54133dbd
font_02_sfnt_off0001148f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1148F 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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