Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22f144fdf8d20b4…

MALICIOUS

PDF

46.6 KB Created: 2020-10-26 02:44:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-02
MD5: c5158286c11d5b02b78cbb049007d893 SHA-1: 139dbf681cecb23c1b49660e40acfa6469e5ffd1 SHA-256: e22f144fdf8d20b4b92e02b853b30bb0b23b6fc22613f47ea5914c09cac84a9a
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/aws?keyword=easy+keto+meal+plan+pdf In PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/vesuk.pdfIn PDF document text
    • https://lozulijulejibog.weebly.com/uploads/1/3/1/8/131857057/vilofi.pdfIn PDF document text
    • https://kerumesuni.weebly.com/uploads/1/3/4/1/134131613/magidip-vixoniroxotumi-bazekewuxuvu-gepiku.pdfIn PDF document text
    • https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/6181531.pdfIn PDF document text
    • https://guvapokasek.weebly.com/uploads/1/3/4/4/134437462/f2093eaad023.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/tunitulo.pdfIn PDF document text
    • https://jugoruzaja.weebly.com/uploads/1/3/1/4/131407370/bavafabozipibat.pdfIn PDF document text
    • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/kegibeziwekim.pdfIn PDF document text
    • https://lekolusogi.weebly.com/uploads/1/3/4/3/134365603/zusefuroxew.pdfIn PDF document text
    • https://pubetisor.weebly.com/uploads/1/3/4/3/134348812/bapavumebero.pdfIn PDF document text
    • https://feloxoxux.weebly.com/uploads/1/3/4/0/134000485/juveminisu_lipesironipesuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007686.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007686.bin)
    • https://cdn.shopify.com/s/files/1/0434/0314/9479/files/annabac_terminale_s.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/7851/6376/files/dasilifamejemiselowegemos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/7051/2040/files/jorinakufaxudokuzit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8722/3703/files/80976432395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8391/5962/files/dumpster_apk_old_version_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18a00c35-2684-497f-9516-43b4b7d751de/xubijud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9f2e524-527e-45dc-b79e-2f9ad3736d98/72005286786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e4387e5-f6d3-4f95-a619-d501b92f33ea/92687468259.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_off00007686.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_off00007686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7686 5212 bytes
SHA-256: 8f41a9401c0a3f714af6ea484cbc6e930d52b9e59b1f684b85ebe3b1ec410cbd
font_01_sfnt_off00008842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8842 11060 bytes
SHA-256: 70384bf9308708c6b58fab0e2935eb850ddc203a9a893d3698a3850aebadcaf3

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