Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f489f8bebeca56a…

MALICIOUS

PDF

60.5 KB Created: 2020-10-16 00:53:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 9d40e2d74e4d86a9bf87b9a9cac32d9d SHA-1: f646086b4e575f7fa11211a983fab58d053ddba7 SHA-256: 9f489f8bebeca56a33ce01905f69afc02634da4e6736093b8accdc237ab11384
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://ttraff.club/pify?keyword=terapia+cognitiva+da+esquizofrenia+pdf In PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdfIn PDF document text
    • https://ritibamubube.weebly.com/uploads/1/3/1/4/131437410/rekubiguru_tesemovofukibi_rerujirujupami.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/manofuzawidevu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_5f88148b14e3c.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/1902f26163.pdfIn PDF document text
    • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/finonuk-vipulotoj-lenati.pdfIn PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/b14c538121.pdfIn PDF document text
    • https://site-1042617.mozfiles.com/files/1042617/rojejar.pdfIn PDF document text
    • https://site-1042359.mozfiles.com/files/1042359/10456784323.pdfIn PDF document text
    • https://site-1039430.mozfiles.com/files/1039430/56962047210.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370319/normal_5f88c054dfe56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369933/normal_5f884d2cad39c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368955/normal_5f881f2e7b4e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5f874d2ed33cb.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/8fad79ce-66f4-41d2-80f4-015a287e7693/32613270312.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5ed4eb4-8e24-4034-ac6c-44d06d3a4bb1/wazigaxipetif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7fe5b32-b6b6-42ab-806a-c27455c1f481/xigiwapawivaxupada.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_off0000aef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEF3 5476 bytes
SHA-256: 0e1b26ca52272d91ce53eff419fec9dd870aaa4d6026716a2b2213e0e65759ae
font_01_sfnt_off0000c1a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1A7 10508 bytes
SHA-256: 22525f46d22d8878133d9a11f55751fc5a1755388583cac1f9936c587e2eb007

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