Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8ac1115bd024bc…

MALICIOUS

PDF

469.1 KB Created: 2020-10-30 00:55:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 6fb82ee83cad8a3553c0035ecfaf0996 SHA-1: e784a78533afff95e76f1d2e6df4cbc7229bcb5a SHA-256: 5d8ac1115bd024bc273bb604d7422591295f1caf89b18fdf6fc0fd61e00fe161
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

Heuristics 4

  • 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.
  • 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.
  • 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=the%20scarlet%20pimpernel%20baroness%20orczy%20pdf In PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/titilegovaf.pdfIn PDF document text
    • https://paviliwele.weebly.com/uploads/1/3/4/4/134489687/f0213a74.pdfIn PDF document text
    • https://derodaju.weebly.com/uploads/1/3/1/6/131606282/ab6fd4.pdfIn PDF document text
    • https://jopalezaleloloj.weebly.com/uploads/1/3/1/3/131380469/7d35d.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/069d3964-30fe-4f9d-875d-97e4d9d8ad40/wutodogemilubedu.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/breakthrough_plus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8743/files/fovinopozulanofasuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2319/9140/files/bebaf.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/wunojakukefivi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b11d5f6b-7e3f-4f86-97f9-32dd31d5254f/rorevujebuba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/822698cd-0b83-44da-b09d-337acada71c7/keluzewatijuxufupof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0309/1872/files/fallout_3_perk_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0854/3901/files/56865191102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0953/8729/files/pogobozevulaxoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9669/7768/files/floor_plan_symbols_and_meanings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7978ec90-294b-41ff-95ad-1c8378308b3e/22867763409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5140/0391/files/enlisted_promotions_and_reductions.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006f1c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1C6 5636 bytes
SHA-256: 81d299254d79c886dd7c3b4e6a42e8db52dc5ed259dfe1214f23516592f1de85
font_01_sfnt_off000704d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x704D8 12056 bytes
SHA-256: a6d47c8b4c2b64fba9ea963ccbf29c7b6d54c357137b487432ab802d9d1a0106
font_02_sfnt_off00072d22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D22 16204 bytes
SHA-256: 31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf

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