Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a14782cdbd4607…

MALICIOUS

PDF

45.6 KB Created: 2020-10-16 06:50:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 670a1350b7dc8f2c31824b13a26b66ce SHA-1: ea3844891e1c88271a6d19f6fb7180d6e731cec5 SHA-256: 96a14782cdbd4607a24c3713dd35eae26273007b27ade05da3e95f051784ab6b
184 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.
  • 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/pify?keyword=cleaner+for+instagram+pro+apk+hack In PDF document text
    • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/forunanu.pdfIn PDF document text
    • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/866f9c6956dfb96.pdfIn PDF document text
    • https://gukaguse.weebly.com/uploads/1/3/1/3/131398473/0fff716dd761596.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kinufijozulof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366395/normal_5f8757b0afe75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368221/normal_5f87bc3e7a6b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368250/normal_5f8840c29e79c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5f88b7fa84f78.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/9325577.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/vepulakanug.pdfIn PDF document text
    • https://pebiname.weebly.com/uploads/1/3/1/4/131453048/dilukoka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/035b622b-6686-44ea-b867-e3545d743b08/91419010040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53d24166-76a0-4958-9cd3-188376016f44/xidij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17447115-3c40-40cc-9c3b-9b0ad7e51e52/pamilisujinolatoximinuzim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cf4f4c6-b563-4fd2-a9e6-0b0de585182a/sewutanubedeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8118/6972/files/sewux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4999/1330/files/54398494204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9602/4261/files/sex_with_clothes_on.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da2dd3d3-0330-4914-b7c3-df2a96c3b8af/45298526739.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abd202ce-4f99-4d84-81b1-1b718ba0c943/xolobatusafilug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ca67de2-53a5-4443-a176-0cd6b0348ec9/13230038250.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 5304 bytes
SHA-256: e96ab6033d55caf2205ce660b1d2d7a8f5458e8fe8376b6df48cb8acbf9e62c5
font_01_sfnt_off00007832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7832 10216 bytes
SHA-256: 82f434bfc7745ea00f0f38ad5824fd64023480d5b1ca970146cb5a503c2f1f82
font_02_sfnt_off00009add.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADD 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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