Malicious PDF — malware analysis report

Static analysis result for SHA-256 de47f9b2b52a423a…

MALICIOUS

PDF

48.6 KB Created: 2020-10-22 18:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: 8268d6a2f69d5946435e6817e0e5f042 SHA-1: cdbd1d1bb7bca1df89f71b28052f98da3df19b42 SHA-256: de47f9b2b52a423abeb5e86c581aa86caf7ed3bd92f94619e6ceaae80e0092cd
194 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.
  • 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://ttraff.me/123?keyword=adirondack+high+peaks+trail+map+pdf In PDF document text
    • https://dawanuma.weebly.com/uploads/1/3/4/3/134305997/3518759.pdfIn PDF document text
    • https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/nudinagexareda_kuxoxuravu.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/gugomevorerenak.pdfIn PDF document text
    • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/4657815.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/chemistry_textbook_class_11.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/lulisodajabolipikag.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/30264749480.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/f_b_service_equipment.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/12445448934.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/25174746055.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/trait_dcisif_averroes.pdfIn PDF document text
    • https://bubiwodepu.weebly.com/uploads/1/3/2/8/132815961/bokiwesefi.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007c14.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007c14.bin)
    • https://cdn.shopify.com/s/files/1/0431/9327/0429/files/74002792713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/8666/3846/files/paytm_mall_hack_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/6688/8870/files/who_was_yohanan_ben_zakkai_and_why_was_he_significant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9124/0122/files/tojunulul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8085/7253/files/battle_of_the_centaurs_bocklin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9468/0775/files/32206331876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4725/4688/files/ideas_and_opinions_albert_einstein_epub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/0877/0215/files/how_many_teeth_do_snails_have.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5364/0608/files/95225262285.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95376592-5d42-4be8-a472-7aa8cf74f43f/82912540909.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15ff6594-6ee2-4c4c-8d17-6795be76ac9d/wutazixotawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10f0967b-dc5f-4cec-b0cf-ef3766715a24/juwasejor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51f04300-d625-4d86-a37a-14ebd4e4e58d/fumufujidetozonozuxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92517c0c-b961-4a53-a280-0218434c25c3/99264870503.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 extracted file (font_00_sfnt_off00007c14.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C14 5624 bytes
SHA-256: 02f7801a1f03a2309f9d27f9e73d11a7520612a58e2d57c87cc4cbc3ed13caed
font_01_sfnt_off00008f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F09 10996 bytes
SHA-256: 9bd047900b13b3ba309e94b449691fd6b67b1f0f1b6de930cddc95ef583e1829