Malicious PDF — malware analysis report

Static analysis result for SHA-256 793be66ee1cbeaa2…

MALICIOUS

PDF

47.2 KB Created: 2020-10-16 15:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 1bf1abf1596d6bfbde5d9b9b8d6589b0 SHA-1: 1cea292338d3f50bf10956054ed88bf51ab8d8ce SHA-256: 793be66ee1cbeaa25a25bb2eeb4be9d541a8b5db97747dbf665766867037c95c
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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/strik?keyword=bicsi+cabling+installation+manual In PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/volisilitij_luperodebif_vaxulaxolirid.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/7082046.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/winepogor.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/6311175.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f870fd5df06e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370056/normal_5f88d4f8e0f8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5f8706b9e8db3.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/76af548e-f449-48de-822e-3b073aae9881/ravagabenojugi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06808583-2c86-4d0f-b6c6-9b85912a48b1/fijovojal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab1ebe65-b0cc-41e5-99f5-36ffe321049f/46226672020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb08473b-b25b-456b-9208-51bd8b0fc65d/65914035945.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a1f0b50-a1dd-4f62-9b08-fc65642758dd/43564754641.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b9d4f81-4277-489b-8dd6-feb7cc8ba125/21695425941.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/964ac475-3a38-4568-a952-168d4ec2e1d8/79469975096.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cadf256f-1a3b-41ec-b331-166704853747/2446693821.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cd2c7c5-4a8e-4ab0-aa4a-3d5d7c140db1/53151263655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1084ae68-9990-40df-a190-a80af1b7c4d8/46247761759.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47813dba-4cc5-4fea-b9b3-71f3ea380c61/74611366442.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b82d29e-8617-4d09-b6cd-bfed9603aa31/19964378390.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4174c5a-c5a9-4244-ada9-b54f3147c37e/56752587806.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcd8c97b-4703-4fb1-8573-e038cdcf0186/fufusilavafuped.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_off000077f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F3 5212 bytes
SHA-256: bdba7e37930ac00ec31aa0b58fc48cff0e7f01f4bfa944f0df92f178106504de
font_01_sfnt_off00008996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8996 11424 bytes
SHA-256: fb76413726c90e8351a8446aa49268473f75f12170d127f2a098b2eca1bba349