Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cc0018d8030b023…

MALICIOUS

PDF

45.8 KB Created: 2020-10-13 12:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d7f580b071bcc17af9f6acbdacd4c3b7 SHA-1: 93dc14ae2582dd063cac03dd7c5306272cdd938d SHA-256: 9cc0018d8030b023f0ee1f9cde79d538c4fb103373a92b9b022cd4295607b62a
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=implosion+never+lose+hope+android+game In PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/9594994.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/aa94aa7f99c.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/digokasawuj-jipamuputevuf.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/godekux.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/1/0499/5029/4171/files/la_fuerza_de_sheccid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ee4670b-15b4-4548-ad16-4b62d3e54a90/70189217748.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e999bd4e-0286-4098-9d92-00e0ff867eb1/morobuwotodugila.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f907eb69-30cc-4c7a-aeed-445f05a14ef5/gokado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505e8015-f405-461f-bee8-53fbe5f5ed87/movazisexugofov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d69621dc-9c0e-43a6-8cfd-3692a7aacbc1/tawufujogojizuboziwukofaj.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E3 5372 bytes
SHA-256: 4790203f5f60ad683773c0a7a597da8d0522b4fb727e2f7e49cb2e15bad685c9
font_01_sfnt_off000087f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F5 9972 bytes
SHA-256: a8f8362856b1dd0a63a47e48fb49c9da9aa0c7ab2ba0b6cfc9c25d15ce8abb9a

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