Malicious PDF — malware analysis report

Static analysis result for SHA-256 f348ab7e937d6e6a…

MALICIOUS

PDF

42.9 KB Created: 2020-10-10 23:41:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3799e6f12bd7b7ac4062f18962efb33d SHA-1: f89a7d20471e69663f5d3bc9d10b074d61920f84 SHA-256: f348ab7e937d6e6aac1aa6b3fdbb79b9dc3df26131344fcee1cfdb4867bd1fcc
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/pify?keyword=cast+down+your+bucket+where+you+are In PDF document text
    • http://files.yez.dk/uploads/1/3/2/8/132815343/513965.pdfIn PDF document text
    • http://salog.captainlalchand.com/uploads/1/3/1/4/131483112/5939233.pdfIn PDF document text
    • http://files.gwhsgroundscommittee.com/uploads/1/3/1/3/131383386/wunuwagemat.pdfIn PDF document text
    • https://site-1040248.mozfiles.com/files/1040248/5002140241.pdfIn PDF document text
    • https://site-1041927.mozfiles.com/files/1041927/3358582813.pdfIn PDF document text
    • https://site-1037094.mozfiles.com/files/1037094/lumopavopewawaxune.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/1/0496/1258/7159/files/ff8_strategy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8391/8229/files/11024557492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0185/0273/files/yo_antes_de_ti_pelicula_google_drive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f89baba-ffbe-4da5-abd1-37ddb006c0d6/54645448613.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/258d2654-9893-4884-bdc1-7a930d775612/10902849813.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa633a39-2410-4982-9db1-1bf94dee9a24/95562239448.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f60b152e-66ec-45e6-aa01-6113c86a3d18/27522481523.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0969d96d-7b51-4930-9857-d49224e2ee1f/45352093810.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 4

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_off000068d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68D6 5296 bytes
SHA-256: 63e0861966f4eeb190d13bfab8e63d6f61a29fbae83bef51b784ff76c59c744e
font_01_sfnt_off00007ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE4 10420 bytes
SHA-256: 655e7ed38f06d8ad6476da1ea128ba796177cd68151caad2d29ade141eec68dd

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