Malicious PDF — malware analysis report

Static analysis result for SHA-256 3566d4e193aaea2c…

MALICIOUS

PDF

53.2 KB Created: 2020-10-17 07:14:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 452f1f270839e5c4abbeb424fc14bd98 SHA-1: 32cf9fb1c181fa58362d52e22614ee07407b8f0f SHA-256: 3566d4e193aaea2c481bd9ba5f572efb536e443f81e0008df3bfed3d6be18e6d
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.ru/123?keyword=produccion+del+liquido+amniotico+pdf In PDF document text
    • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/3001531.pdfIn PDF document text
    • https://tadeganerusoza.weebly.com/uploads/1/3/1/4/131438541/newiven.pdfIn PDF document text
    • https://varipejat.weebly.com/uploads/1/3/0/7/130739080/1992709.pdfIn PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/zilariteliwijokotisi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367643/normal_5f898f1c1306a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f87572527f35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366666/normal_5f881d10e3837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f871dcf948b8.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/5a74d536-e20d-4897-92be-73803e714fc1/pepipozasanorozasuranumaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dff2ea40-cd58-49ae-a59f-3fe84ac98f71/lirebawekoxemotumeruguz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be065787-f264-436f-94a0-381cf7cf80f3/54264382234.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77c4b4c0-bb90-45a2-8857-89f18206aa88/1967344800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7268932a-b17a-4c2e-8b79-eefe39ab705e/zanenewaxigofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdfa916e-6a7a-4343-b598-82ec4abcfc7f/fafazuluritireba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14668e27-bbdc-4b45-be60-220a0d9de90f/tivukibitemora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60674623-ec14-4fec-8d05-cd99ab1fd077/vimuporotidipatumopav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2089/0524/files/nisofela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7043/7016/files/lewis_acid_and_base_organic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3160/0538/files/63284328733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9359/7601/files/vlc_player_pro_apk_free_download.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_off00008393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8393 2800 bytes
SHA-256: 0188eea16489569d2f4cf78366a8d3d683e181a563c30695c6e2cf19eb61eb3e
font_01_sfnt_off00008d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9A 5248 bytes
SHA-256: d8fdf12978e1390bf1926b9f49142cc8611de4ae053ce3ba2ec75aef0543e0a9
font_02_sfnt_off00009f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F57 11788 bytes
SHA-256: 6654521595189f0c78d25b920052f280eb01620fba667d23ac996a2ee5aff39c

Open this report in the interactive analyzer, or submit your own file for analysis.