Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c70d2a46410d0ce…

MALICIOUS

PDF

43.1 KB Created: 2020-10-12 03:22:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5b3e07f05b96c7bdc779cb68eee9c67b SHA-1: 5ac004a399ff05697d912e2bc23a06d9f7f3a4af SHA-256: 9c70d2a46410d0ce2d744cf753844278b69acb59eb2c6a3300c7ac090c6d9abb
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=fun+with+flags+episodes In PDF document text
    • https://site-1040282.mozfiles.com/files/1040282/lozisatedokame.pdfIn PDF document text
    • https://site-1043459.mozfiles.com/files/1043459/nuxodigevakugofax.pdfIn PDF document text
    • https://site-1044104.mozfiles.com/files/1044104/52147692882.pdfIn PDF document text
    • https://site-1039898.mozfiles.com/files/1039898/84230280757.pdfIn PDF document text
    • https://site-1036678.mozfiles.com/files/1036678/kipidigakupin.pdfIn PDF document text
    • http://files.serviceprograms.org/uploads/1/3/2/6/132681150/sisomolafeku.pdfIn PDF document text
    • http://godaxel.clcboston.com/uploads/1/3/0/9/130969191/furixanamaza.pdfIn PDF document text
    • http://files.tritonrta.net/uploads/1/3/1/6/131637257/4e5d7ccda4.pdfIn PDF document text
    • http://files.2180miles.com/uploads/1/3/1/4/131406811/pegone-rovuf-kafepanux-pivuvu.pdfIn PDF document text
    • https://site-1036840.mozfiles.com/files/1036840/76661399736.pdfIn PDF document text
    • https://site-1044109.mozfiles.com/files/1044109/bugejulupalegofujes.pdfIn PDF document text
    • https://site-1043569.mozfiles.com/files/1043569/1433991197.pdfIn PDF document text
    • https://site-1041282.mozfiles.com/files/1041282/76025029972.pdfIn PDF document text
    • https://site-1038744.mozfiles.com/files/1038744/jobevebagim.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/1/0481/2881/9353/files/47964821318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/sofadubaref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/vilas_county_register_of_deeds_election.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_off00006af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF4 5252 bytes
SHA-256: f4fa6136ca4eb640ab823c72c9772023db4595cb0352fb7e2ce316f534043bf6
font_01_sfnt_off00007ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE9 10192 bytes
SHA-256: 8b47a0f30ab3e800fb7beaead1a3adf46f8ead5050335072aabdc462e177ae85

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