Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ebf9ed093ee70e…

MALICIOUS

PDF

42.8 KB Created: 2020-10-04 13:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e03903d94587f823bf21c70834555790 SHA-1: e1b37338da8ae863804811d5b113b14adc089d81 SHA-256: 00ebf9ed093ee70e1724f645dfade82957fff67368e8bbc93b4a35c1a4a7b73a
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://cctraff.ru/strik?keyword=essentials+of+chemical+reaction+engineering+h.+scott+fogler+pdf In PDF document text
    • http://fukuzifi.alirazaartist.com/uploads/1/3/0/9/130969663/rigusonig_gabor.pdfIn PDF document text
    • http://files.transparentemprotocol.com/uploads/1/3/1/4/131437402/tawep_vogatok_waxowajix.pdfIn PDF document text
    • http://files.medic-rescue.co.uk/uploads/1/3/1/3/131379394/loresewopezov_vuxomabelore_foriz.pdfIn PDF document text
    • http://mewaloxit.bertguerralaw.com/uploads/1/3/1/3/131383483/kamuxuzipesam.pdfIn PDF document text
    • https://site-1038432.mozfiles.com/files/1038432/31033270595.pdfIn PDF document text
    • https://site-1038470.mozfiles.com/files/1038470/bagaranat.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/98bd066b-c2e8-492b-99a1-60eb09b472cc/fasije.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5d85528-0bba-4f55-8ca2-1a68482df4b7/gekojorapunipoderegefor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fb00e30-8df2-4814-8d0b-75784b3d32ba/foxiwew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/805c3f94-5a3a-4271-8278-8981818c78db/83130056957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/wii_u_map_manager_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2169/6149/files/gopaseda.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_off00005bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB0 5348 bytes
SHA-256: 7044d5a6174f84d6d2212c21329f4ac660401c24a492e70833d2713bbdab46a1
font_01_sfnt_off00006daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAF 9864 bytes
SHA-256: 7155402fab1371e21c87dfe106be63a9a7e15f1e5ccfb3c7451b7eef00c5e7bb
font_02_sfnt_off00008f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F64 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176