Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3cf245762a1daa…

MALICIOUS

PDF

47.2 KB Created: 2020-10-02 09:21:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 25bbd4986dba6c89689ef2d51c9d6e3a SHA-1: 8cad7e1941647971ab4db0867de3979ee5ad7cfd SHA-256: 0d3cf245762a1daa93df82f54d5a403c3e3ee6444a31e543d5b610e0047bbd90
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://ggtraff.ru/strik?keyword=mercy+shawn+mendes+descargar In PDF document text
    • https://site-1036675.mozfiles.com/files/1036675/35613240357.pdfIn PDF document text
    • https://site-1037009.mozfiles.com/files/1037009/kisemax.pdfIn PDF document text
    • https://site-1039431.mozfiles.com/files/1039431/fuzegipiguzos.pdfIn PDF document text
    • https://site-1038586.mozfiles.com/files/1038586/gaxovawejuruwadumelef.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/1/0427/4143/2487/files/8839696448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4715/7914/files/45864776750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/8715/9190/files/90193103790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9701/2890/files/sims_3_ambitions_apk_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0468/1511/7466/files/infiniter_laser_cutting_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/nezawudewonuzulex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0059/3557/files/fiviwazosabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8050/6785/files/venuxudus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6693/1865/files/chandler_valley_center_studios_the_office_tour.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/3185/6805/files/ramedoxononuxifufujumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ae8ae42-9c6e-4fe3-97b3-b56a068a7a46/natigimol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75c197f4-418a-4269-89b6-8d454a7cd193/3227058605.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9d0ca15-b123-48bc-a00e-6d0e198637e0/rivelazadibunomubasuvaxid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d1dcd51-6f36-4970-aa1b-861045b9b6e9/vemozumurukatoxemugirazi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f9bea48-b9da-4823-bcb4-ca270d3b4e58/dexepusije.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6375 5520 bytes
SHA-256: 36cf4ef20200521ceeacc365d9e985dd2720756fb66dab8a7db8547bd413f726
font_01_sfnt_off00007632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7632 10616 bytes
SHA-256: 47161a380b3c905566fa0a140f80dd5f1504c58cb7bc000113a3d1db0e4d786c
font_02_sfnt_off00009a3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A3A 16180 bytes
SHA-256: 09da5d736e79e0f9ab79fc46ef0d4c9f58414e8bab1a8482b4154bf11f84aea0