Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5633ba74dadb443…

MALICIOUS

PDF

50.1 KB Created: 2020-10-02 06:41:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 174866af31024f3de10177cfa516a3d6 SHA-1: 6fb4cc7be8ca9db05413cd75fb694356671dbd54 SHA-256: e5633ba74dadb44305ef4bd316840d32904c203beb5d86a5ac175c0998504a86
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=chakra+and+crystals+pdf In PDF document text
    • http://files.libertyeliasmiller.com/uploads/1/3/0/9/130968906/8486156.pdfIn PDF document text
    • http://jewunisaj.highlandcabinetryinc.com/uploads/1/3/1/8/131871767/ecd0b4.pdfIn PDF document text
    • http://files.healthymauichef.com/uploads/1/3/2/8/132815812/2487601.pdfIn PDF document text
    • https://site-1036879.mozfiles.com/files/1036879/vadutixira.pdfIn PDF document text
    • https://site-1037157.mozfiles.com/files/1037157/ludivokavo.pdfIn PDF document text
    • https://site-1036695.mozfiles.com/files/1036695/mimurevetupin.pdfIn PDF document text
    • https://site-1039932.mozfiles.com/files/1039932/gesamafewagus.pdfIn PDF document text
    • https://site-1036957.mozfiles.com/files/1036957/sofirefukutun.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/1/0431/4038/2882/files/destiny_2_mars_how_to_get_encrypted_cache_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3076/0600/files/garrison_property_and_casualty_claims_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4008/0025/files/71659827459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8857/9233/files/11940235716.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b83123be-a4f3-4336-91e1-c8e82e72c626/wuponubewetakex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83fec3aa-5eb1-4bad-9f02-a2fbb470ff29/padololukixonizoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/606fa7a5-cfa7-49e3-9a3d-f2187ac414fd/navuwux.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_off00007b43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B43 5316 bytes
SHA-256: dc8e4621171a5660848b9806deaabfd9bd76afe6dc6f5b437b7b04b6b118f2b0
font_01_sfnt_off00008d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D57 14428 bytes
SHA-256: 8e5c0dcf69dc9387d7515f6e73f8ffa61161500107a82a32ea84fcd20b840058

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