Malicious PDF — malware analysis report

Static analysis result for SHA-256 83d3b3d51ca0c363…

MALICIOUS

PDF

42.2 KB Created: 2020-10-02 03:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ca8c578b6901998feb904d63d896434e SHA-1: ad3b71168cb90cae1c9763ef344882d4e209f253 SHA-256: 83d3b3d51ca0c363568bb8cd287faa260916a064b90ac945f0a2a31370acc3cb
184 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.
  • 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://gettraff.ru/strik?keyword=razer+synapse+3+profiles+download In PDF document text
    • http://jivurifi.noebadillo.com/uploads/1/3/0/7/130775336/nusarivej.pdfIn PDF document text
    • http://files.chemdryfivestar.co.uk/uploads/1/3/2/3/132303079/jorobakupegofuk.pdfIn PDF document text
    • http://kakabil.sthelenskarate.org/uploads/1/3/1/8/131871699/wemevatigakutosososo.pdfIn PDF document text
    • http://files.heartdoghealth.org/uploads/1/3/1/0/131070560/segajavogedutevudiro.pdfIn PDF document text
    • http://files.postproductionswindsor.ca/uploads/1/3/2/6/132681401/437e415cdf0.pdfIn PDF document text
    • http://dalakesut.mwdga.org/uploads/1/3/0/7/130739192/163429651ef46.pdfIn PDF document text
    • http://files.stephanielamprea.com/uploads/1/3/1/3/131378816/rilobaran.pdfIn PDF document text
    • http://files.oasischurchaiken.com/uploads/1/3/1/4/131437949/woxolodifavo.pdfIn PDF document text
    • http://files.crewebyfarndonmethodistchapel.org/uploads/1/3/1/4/131437322/709819.pdfIn PDF document text
    • http://files.emsathletics.ca/uploads/1/3/1/4/131453194/81fd0f9e3.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/42591946-ef85-47cc-b64e-0fd70d7228c9/bunudigawumitosil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b59d45d-f7f9-4e2f-80b9-fad1899bd68c/ninexikerasegopemav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10303ccb-3723-48dd-810a-b4a6962eb2e5/6881108730.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5af119ed-25b9-4e70-a43f-c8b26acd4b05/31782906245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9179/5873/files/fawakilokubonev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4630/4933/files/bissell_quicksteamer_powerbrush_pet_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6575/6834/files/tujovanumisajilefan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7918/3767/files/personaje_star_wars_jucarii.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_off00005a55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A55 5160 bytes
SHA-256: 720a07184b94c4721dbbf0951fe0da5b143011ce30a352c4ebf47ed7ccfc8542
font_01_sfnt_off00006c07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C07 9860 bytes
SHA-256: 6ed565fc3201b447e1badecbe3b7da5a82d978a19ce3c4bb84ee24066864fc11
font_02_sfnt_off00008da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA9 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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