Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcf6053a9f9e678f…

MALICIOUS

PDF

39.7 KB Created: 2020-10-25 17:22:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 17d1a7ee08bf77f22f671d0927fdc254 SHA-1: 1b5a3f6cfe62467c703aee4fef804080a492ea3c SHA-256: bcf6053a9f9e678f75d982485d272e9aee3c5774dc041e2dd85f3fbc1eb30cb4
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/aws?keyword=advanced+guitar+arpeggios+pdf In PDF document text
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/9746686.pdfIn PDF document text
    • https://kafaziwe.weebly.com/uploads/1/3/1/0/131070109/7e453b.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/8279037.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f8718425a0c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374188/normal_5f9310bdd075c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5f8bcba9a7547.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366653/normal_5f874c34adb6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8dbf4ce614e.pdfIn PDF document text
    • https://kuvanipugeva.weebly.com/uploads/1/3/4/4/134445248/4040794.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/lasezuvafuji_kabonudisa.pdfIn PDF document text
    • https://folanejo.weebly.com/uploads/1/3/0/7/130776558/8f8178483.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/90426372571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2991/2488/files/30300519709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/1840/9911/files/gumball_mutant_fridge_mayhem_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2596/4957/files/dmv_springfield_illinois_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/historia_de_la_literatura_universal_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7085/2762/files/wipasusosub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9403/9975/files/70638685834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4537/0528/files/maxerimid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7237/0326/files/the_works_toilet_bowl_cleaner_sds.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_off0000564a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x564A 5340 bytes
SHA-256: c33eb889ece6f4c6f6e7ae9f24dd4d611aa878ed04ac78f94a911c9c22d7fc34
font_01_sfnt_off00006889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6889 13196 bytes
SHA-256: 225c313a01eca600c78e34ab39c2404404f1a336e8065677c800af213bf00e6d

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