Malicious PDF — malware analysis report

Static analysis result for SHA-256 70f04142624d0214…

MALICIOUS

PDF

48.3 KB Created: 2020-10-06 08:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9d271e105ecbc6197bd3bfbe8a2cc9e2 SHA-1: bdb92f9122a941120b49097a5cfcec63763a2b38 SHA-256: 70f04142624d021442da1b942ff6552cc18fbaf05ecbab8173deb0fca0070628
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=mobile+precision+7740+cto+base+pdf In PDF document text
    • http://files.celebelle.com/uploads/1/3/0/8/130814161/luzalelo_pazido.pdfIn PDF document text
    • http://gevasago.holytrinitypride.com/uploads/1/3/1/4/131453724/tojemawegomezitapi.pdfIn PDF document text
    • http://files.ridgepointdms.com/uploads/1/3/2/8/132815343/46f4e.pdfIn PDF document text
    • http://files.falzoneps.com/uploads/1/3/1/8/131871740/sikesev-gorawuniginavob-pekepomuva-xovigajofazar.pdfIn PDF document text
    • http://files.gener8tionalconnections.com/uploads/1/3/1/8/131856134/3517632.pdfIn PDF document text
    • https://site-1040238.mozfiles.com/files/1040238/27726008270.pdfIn PDF document text
    • https://site-1039261.mozfiles.com/files/1039261/sivemikoxujirogumuj.pdfIn PDF document text
    • https://site-1039314.mozfiles.com/files/1039314/17477161254.pdfIn PDF document text
    • https://site-1036750.mozfiles.com/files/1036750/9304577209.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3351/files/cdma_workshop_2.7_cracked_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6071/files/jeep_liberty_vacuum_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7115/2023/files/rudodovininafudetubumepel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3765/4178/files/red_toaster_oven_kitchenaid.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_off00007a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8B 5604 bytes
SHA-256: 11f2928cc1772c57bfb95b24b693af716309031dd11ac1cfe19fee530afa4e7a
font_01_sfnt_off00008db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB6 11124 bytes
SHA-256: 6f37f85c960d1dddc94ea259a5c35145a8fdd4ab9484a06be1fb3d41790ddfa8