Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3685e18d1d5ee9…

MALICIOUS

PDF

49.5 KB Created: 2020-10-26 06:09:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 1361a955377df6916e360d6e23e839c7 SHA-1: f90445abece1e0447fce6ae980ec9f393155c21b SHA-256: 4e3685e18d1d5ee9df698b3b336a24fede68ebaff6035f0e5f075b4899d9e56f
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://gettraff.ru/wb?keyword=without%20you%20sheet%20music%20pdf%20rent In PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/9142240.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/revekovux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/86492d0c-c6cb-4926-8774-c7be4365bc7a/zefozikezagatanomavu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8e52c86-7f2f-4378-8344-6933df027eda/wijopitogosudibamasotedub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3555750-8a31-474c-a2c5-f148c9542184/21684059300.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3425be89-e193-4869-bf90-14a21ca357dc/fovevidujuberiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/131736df-0255-49ce-b110-5d1233bb759e/wakfu_sram_build.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86f25346-c218-4468-9304-380cede1487b/16633522539.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1aca5b64-261b-4e06-8fd9-2d70dded30e8/bob_proctor_toronto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa6d15dc-0421-403c-9fb5-aaffbcf4db8a/74943612662.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afd74294-62da-4ef9-852b-ea9dd60b14af/digagitutifenopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/7113/3597/files/listview_two_columns_android_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8319/7341/files/harker_heights_high_school_tx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7439/0678/files/clash_of_clans_apk_hile_indir_torent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0390/6717/files/medcaptain_infusion_pump.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1421/files/exsultate_justi_viadana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e00580e9-6754-4deb-9984-1372268bfe67/tevopagelosevokufufiloleg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab501487-c8ef-4eac-bedd-41287f78a25d/35278758151.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/nuvixarezoki.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/pibefafepatu.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/vsepr_theory_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/lipibidegolefimilakolisa.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000758c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758C 5152 bytes
SHA-256: 1e6f85634f4863c1314d351144a13ead4ae9a533ee5f44d588b91d4968c7b407
font_01_sfnt_off00008701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8701 10220 bytes
SHA-256: 4ae50445bf34a033bb70fff51bba18d6303045258da4d725393f7c2dc1c55341
font_02_sfnt_off0000a9eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9EB 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e