Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d30891b2111f82…

MALICIOUS

PDF

43.4 KB Created: 2020-10-28 00:54:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 478117b4610187e1ed0694c09921474b SHA-1: a934256f268c602e43d7eb44916cb1a7378c5c72 SHA-256: 75d30891b2111f82088e2f213a3a53310a1899bf40f4d34b85b814ae3a39135a
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/123?keyword=home+depot+refrigerator+water+filter In PDF document text
    • https://rivisoni.weebly.com/uploads/1/3/0/7/130739016/9243522.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/d549da259ed0cb.pdfIn PDF document text
    • https://jotuxopa.weebly.com/uploads/1/3/4/2/134265841/sozajigagexaxez-vixexilanevopar-remuvovokuto.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/2f6d0609d6a.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/jejesubipavif.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/waxuv-lekifijetajo-xarivozususoj.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/dcc6feb08a2.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006abd.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006abd.bin)
    • https://s3.amazonaws.com/xanebavifamopez/pivisobewebunevote.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/43543530323.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/47920418171.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/singular_plural_nouns_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/lapenilorurivugepuser.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43d55c36-53fa-407b-afcc-b9e341a09e46/25174899614.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80254b0e-aee0-4a75-9052-3142e3e5e589/dubai_return_full_movie_watch_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3c43af3-57f1-45f3-8f6b-fcb31684b654/19633192027.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04517e2a-3e00-4eb5-ab11-34e5c3480092/jalinosumonemorapasonarax.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/2858320727.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/tabofowivelewo.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/57330228757.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 extracted file (font_00_sfnt_off00006abd.bin)

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_off00006abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABD 5236 bytes
SHA-256: 2b48de59bb3599f4f5c54a9cdb3ea49d323fbf9616f6df1394038482d68cffb2
font_01_sfnt_off00007c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8D 10536 bytes
SHA-256: 617edce8806327034a51590170dcb40f314b45b12dfadb2484e32402d8313112

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