Malicious PDF — malware analysis report

Static analysis result for SHA-256 e699c6603b88ae43…

MALICIOUS

PDF

56.7 KB Created: 2020-10-01 00:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2347314595cd4dda6ea67bf8aa6b5773 SHA-1: ffa23eda62b7081faccb712e90d80b3824f57abf SHA-256: e699c6603b88ae43dfa9f219c52d07e1f1b2179fbc1345762bddbe24c59286d3
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=physical+development+in+late+adulthood+pdf In PDF document text
    • http://bebuji.corealis-ing.net/uploads/1/3/0/7/130775880/1459403.pdfIn PDF document text
    • http://tunojaga.grandhavenchoirs.org/uploads/1/3/1/6/131606695/ef61a2b.pdfIn PDF document text
    • http://files.triciavanoostveen.com/uploads/1/3/0/8/130814783/kivewivuki_fivomubujewemes.pdfIn PDF document text
    • http://files.halfmoonyogaandart.com/uploads/1/3/2/6/132695517/8318793.pdfIn PDF document text
    • http://jokaxokeg.talesofhazaribagh.com/uploads/1/3/1/8/131857243/8702783.pdfIn PDF document text
    • https://site-1036625.mozfiles.com/files/1036625/molaxegid.pdfIn PDF document text
    • https://site-1038890.mozfiles.com/files/1038890/52284837741.pdfIn PDF document text
    • https://site-1038493.mozfiles.com/files/1038493/jawum.pdfIn PDF document text
    • https://site-1038611.mozfiles.com/files/1038611/16064258632.pdfIn PDF document text
    • https://site-1037175.mozfiles.com/files/1037175/fofitidalitelekibase.pdfIn PDF document text
    • https://site-1036955.mozfiles.com/files/1036955/ruwejixonozupovajoji.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/6f6c18ce-ea9a-4b88-9b1e-a0820923ea47/fudeder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b608d79-58c4-4e94-94e3-92287005d927/linokasakinukukosuxawuju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faee3da5-8793-4c96-84e5-184276b2c87d/68150989917.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5442109a-53de-4dcd-af42-35c527bb6e88/vexagegukiminenida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e64198e1-75ac-4802-a18b-b964a5d59ac1/zazapibasekipu.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009fe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE5 5460 bytes
SHA-256: eca514b15a8f5686c1dee9d0ab772414d311dd7ce7c81fef513186fb3e53cf90
font_01_sfnt_off0000b26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB26C 10268 bytes
SHA-256: e132cf0c9b746d1a48733c96861b7d011ad57561406aa17671bb36a895436002

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