Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ecacf98222dee4…

MALICIOUS

PDF

42.0 KB Created: 2020-10-24 20:38:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 0a07de463d3a0b48b91a2b8daa37a5a7 SHA-1: 1f442f573def897133970fb4587562222e722617 SHA-256: d3ecacf98222dee4ea8d4cfd3d50174eeb854b92f3d1e99e8bbd21b3bc7204bb
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ggtraff.ru/wb?keyword=african%20history%20glossary%20pdf In PDF document text
    • https://mesipaku.weebly.com/uploads/1/3/1/3/131383407/9f0f71ba.pdfIn PDF document text
    • https://guburumo.weebly.com/uploads/1/3/4/3/134322172/zonejememes.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/vuzakikowuz.pdfIn PDF document text
    • https://mizunawakore.weebly.com/uploads/1/3/1/4/131406356/3271081.pdfIn PDF document text
    • https://bitekiparoduj.weebly.com/uploads/1/3/4/0/134017536/bamekavu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369146/normal_5f8b93c59ab35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387713/normal_5f9279db56ff1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f86fa52e32ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369772/normal_5f8bd6e413907.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f8704f0c79de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393036/normal_5f8fb1751416d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387050/normal_5f8cc0d296f3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5f8a159d0a76a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/japanese_calligraphy_artist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c034f509-d8f5-4a3e-8f8e-35bca5da7c93/fixujuri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bcf2cfc-8656-4e6a-99d2-bf964d4bbbe9/61751865397.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7735bd69-6b4e-43db-81a1-e3e313cd7591/hermann_hesse_narcissus_and_goldmund.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e8c12b-db0e-4496-bb5a-fe8d5ac4f5d7/kusibepituzixikazenowotaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8160/6335/files/bufelexafuperekasavomem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4666/5382/files/37765734685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8467/9842/files/goxewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2743/0059/files/xilav.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_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 5508 bytes
SHA-256: ab802fa7bf9f886524403f68ae813fdf5fc79489ea2bb7386df148e8c86d7c05
font_01_sfnt_off000078b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B7 10436 bytes
SHA-256: 6f80e591c3b89d2f80dc901f6412936b07177e425760736dc2dd1f97ed986008

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