Malicious PDF — malware analysis report

Static analysis result for SHA-256 3187c3f5bea02475…

MALICIOUS

PDF

40.8 KB Created: 2020-10-01 05:34:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 18cf844bdbe5614c82fc6c98543e725e SHA-1: e95435800f8c388939f3a56cb712ee2ea3e9a484 SHA-256: 3187c3f5bea0247530d71321e494275abfd8b77189a72cc392006cf48d55ae50
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://cctraff.ru/strik?keyword=cm+and+governor+list+of+india+pdf In PDF document text
    • https://site-1036941.mozfiles.com/files/1036941/65407968358.pdfIn PDF document text
    • https://site-1036839.mozfiles.com/files/1036839/nokupevutijoxoxijut.pdfIn PDF document text
    • https://site-1037106.mozfiles.com/files/1037106/rekijifisaw.pdfIn PDF document text
    • https://site-1037833.mozfiles.com/files/1037833/zufuwum.pdfIn PDF document text
    • http://files.bucklesrvsales.com/uploads/1/3/1/3/131397987/dalokibi-xiterepadanelak-funezupokewaw.pdfIn PDF document text
    • http://files.onecfi.com/uploads/1/3/2/3/132302960/1131918.pdfIn PDF document text
    • http://files.lifetransformationgroup.com/uploads/1/3/0/7/130775701/gesimew.pdfIn PDF document text
    • http://files.mcswa-wv.com/uploads/1/3/1/6/131606638/kekikiwupe-virolunifoxox.pdfIn PDF document text
    • http://files.thatswhatisaid.ca/uploads/1/3/1/6/131607043/5241051.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/1/0438/9391/5800/files/tutumako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0467/3699/files/21405860208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4101/2382/files/apus_browser_pro_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7991/5937/files/65130867805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/alaa_eldin_movie_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0108/files/52382020886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6518/6206/files/mathematical_induction_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/92447148874.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_off00006204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6204 5324 bytes
SHA-256: 8267586b54f93ab34e7eb9c6d1b04946229ff03579949b86e1ae483ec5c10bba
font_01_sfnt_off00007411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7411 10012 bytes
SHA-256: 22e5cf7cf4081e7cae51173994ab46d19d852f40c1ef0fca8a060bed6a4446ca

Open this report in the interactive analyzer, or submit your own file for analysis.