Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b673ddc5708886…

MALICIOUS

PDF

34.1 KB Created: 2020-10-07 16:57:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 22d4c9635cb226d7c3aabd424df6c7f8 SHA-1: 7ff8adf52aacb237623cd306ed93301ab43d9ff6 SHA-256: f0b673ddc57088866ee0770fcba9916d29152586d022fe07461cb5b2b761596b
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=le+grand+bain+stream In PDF document text
    • http://mugazuras.kajancbd.com/uploads/1/3/1/4/131453145/bejufotaj-nuwit-jivemek.pdfIn PDF document text
    • http://files.curbysickmonedu.com/uploads/1/3/1/3/131383456/ripinawexeve.pdfIn PDF document text
    • http://files.adrenalinefund.com/uploads/1/3/1/4/131437402/mixuvo.pdfIn PDF document text
    • http://files.apls-students.org/uploads/1/3/2/3/132303310/vimesinadu.pdfIn PDF document text
    • http://files.beauceronsleboulanger.com/uploads/1/3/0/8/130874212/bosipapet_patev_foxusuxojadeg_mepaduwanelika.pdfIn PDF document text
    • https://site-1040358.mozfiles.com/files/1040358/loloperakus.pdfIn PDF document text
    • https://site-1036957.mozfiles.com/files/1036957/38575556144.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/1/0438/4695/9261/files/geometry_dash_ios_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8181/3156/files/76775244291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5568/files/self_portrait_collage_lesson_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2622/9666/files/26444003633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6465/5523/files/rezetetevurisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e22a337b-8a53-4f05-8d5f-e7c48ec0db52/somudobepekebexumavusevo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ce41d8f-d64e-4cb5-aa52-c61432c98ee6/wasubixakozuju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3e6ad65-5de6-40e9-9488-d2c210ccaad6/nikek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89805e64-5f94-494a-a702-f33f33a50e99/nizuzafab.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_off000047b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B0 5192 bytes
SHA-256: 5ddbc1015bfff9a81eb527abfe403928a0e5e45893df8b0aa5be0725be993cd0
font_01_sfnt_off00005942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5942 10080 bytes
SHA-256: 41b5342d915acccffd07303e1de3d0ad091476388e55b49446b240c654b469ce

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