Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd2b12dbfba0877…

MALICIOUS

PDF

54.1 KB Created: 2020-09-30 23:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 75bf1e735f804e134f0ff0b853aa12a3 SHA-1: a52cd68e5ccc86874b440b99115794afaec7905d SHA-256: ccd2b12dbfba0877aad96e6b6fbf34f5d54469a910d4009c33be836d8ec4549a
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/strik?keyword=american+slang+phrases+pdf In PDF document text
    • http://bunelodu.southgatecc.net/uploads/1/3/1/6/131637016/3286199.pdfIn PDF document text
    • http://ziribako.thelabclan.com/uploads/1/3/0/7/130739164/puvujisateku.pdfIn PDF document text
    • http://jujiw.region2soccer.org/uploads/1/3/1/4/131408170/6811155.pdfIn PDF document text
    • http://files.sikhsaaj.com/uploads/1/3/0/9/130969708/fukinokola-lomavezikasakam-bepatamirul.pdfIn PDF document text
    • http://punevijet.smiledefenders.com/uploads/1/3/1/6/131606284/9412260.pdfIn PDF document text
    • https://site-1036667.mozfiles.com/files/1036667/57859871137.pdfIn PDF document text
    • https://site-1039646.mozfiles.com/files/1039646/xagefuvoka.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/1/0440/4438/6454/files/6183762013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/tetibipeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8176/7841/files/seymour_duncan_phat_cat_gold.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/introduction_to_continuum_mechanics_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1083/4077/files/channa_mereya_ninja_punjabi_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3815/7472/files/raniramegafoworofata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/85048708275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8790/5446/files/29652275201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7998/2492/files/59787649547.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_off000094ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94BA 5556 bytes
SHA-256: 30bd8ccd13f66084c2ad6e2fa4d7d37a60df0171db2223ad5e4f8905b86413f1
font_01_sfnt_off0000a76f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA76F 10636 bytes
SHA-256: 1526f62557e62c8e8731a3322ba040fbaa7f19a7c0c5874f55801ba40679ee79

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