Malicious PDF — malware analysis report

Static analysis result for SHA-256 696fd4c100f1de94…

MALICIOUS

PDF

48.0 KB Created: 2020-10-10 15:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 618227d8ac227a2e65546c12ef346cb7 SHA-1: 50c03269486f0b24b1c8affcd9dd8cdbe5c9358c SHA-256: 696fd4c100f1de9456b33a31e03100c00fb50e2a091853496e456506cd28a549
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/pify?keyword=maytag+refrigerator+manual+mfi2568aew In PDF document text
    • http://jirepiwut.violettapretorius.com/uploads/1/3/0/7/130738914/webofelizolagoxa.pdfIn PDF document text
    • http://files.toowoombakoalarescue.org/uploads/1/3/1/6/131636923/a29d7.pdfIn PDF document text
    • http://files.tehnicaalexander.ro/uploads/1/3/2/8/132814974/zesopewerem.pdfIn PDF document text
    • http://banuromem.trfike.com/uploads/1/3/0/7/130776582/4069634.pdfIn PDF document text
    • http://files.nhlogcabinrental.com/uploads/1/3/0/7/130739463/papuwudusu-kizegagare.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fafd7a9-fa2b-42a8-b241-9a25894dde10/67626167001.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d478e5ea-66be-40a2-9238-880844671b5f/leweni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e8e9ad1-d30f-435e-a993-9db62eeb8832/refuwonibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a521c20e-3ea9-454f-88c9-c6b963a4fd2d/mofipababegototijewow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3744032f-2ae9-4ef7-a8c6-8522a534b3b0/75313807944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/382f46e8-3047-4509-994d-ed447770464f/wulixirazadejuwewanepixe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/399699ec-7e68-423d-b2eb-aaa25a491796/rojizagafa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80fc8061-f7ba-4d66-8b93-bdf6d8bd024b/muwivawekakunexomav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee61c70f-1671-40e8-9703-8f7f2fa03c77/jifirelarakugolikosubon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59f4fe05-1e12-4019-beaf-5619c7d85502/2458689171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0413200d-1ad0-42db-9fbe-1930b1958d0e/27326270835.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a43e5ec-af19-4be8-bb32-84f18db10157/42043400980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/233d0a97-1aad-46ef-8f76-3a5ea970fcdc/vekapumibotumidiripovuvel.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_off00007b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B05 5712 bytes
SHA-256: a3551d4dcba2c29e3e7bf015f0d83512727f2a15c8dcf75d8853e4a312e5406f
font_01_sfnt_off00008e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E7E 10884 bytes
SHA-256: 913080690f09b8fa17999fdb00dff3d3b3ed753008042e855b89fb47968eed1d

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