Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e936c034de8e8d…

MALICIOUS

PDF

45.5 KB Created: 2020-10-21 04:20:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0b7c8d305eb299d5f3a3b3fef6ea7260 SHA-1: 13291a43c34dffc768b68a15a80385ec88f8c92f SHA-256: 63e936c034de8e8d91cb282558a9598e31020e624ecc337e878822a26c0e2285
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=2020+lexus+is250+manual+transmission In PDF document text
    • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/potijizegelenunazig.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/gimuvurina.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/1151264.pdfIn PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/jisevex-mumajoda-suwozunos-begadibi.pdfIn PDF document text
    • https://fezuxikazosulav.weebly.com/uploads/1/3/1/3/131398093/3426c1.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/68fee7a133cbf.pdfIn PDF document text
    • https://dujopoda.weebly.com/uploads/1/3/0/7/130739119/6751808.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/0bd95933-d8eb-4cf1-9c2d-f8a178101c1a/nidodinovomujunuxodujowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2401ca61-e8b2-482e-94f9-a6e34a046ed0/sulolelajokoripuwonikuged.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dce98261-eb92-445d-8276-2e741c313824/51203879678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c6f0ca3-29bb-47f6-ae4e-f8bd8d3eca15/48628913178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38586d54-0c8e-4309-8ce5-6ee0c186c085/90325057113.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75097c55-f8a8-4741-ba11-9b562275d4d5/37639072567.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef06d68e-7d8e-49b2-8e79-f8338536b156/75667564777.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ae98d9e-312a-449a-bf3f-511dc4ff18b1/lotogapokexom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adf55d6d-1d96-4846-9242-1603cee267c4/neribozibari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/bivowowejelezifewaredijon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9434/2309/files/old_navy_employee_handbook_dress_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9343/7850/files/panibenusuv.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/63403236340.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/apc_smart-_ups_c_1500va_lcd_230v.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_off00007268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7268 5204 bytes
SHA-256: 506cb9fd95439e5f7d500c7a44dbcfc42b966330bd3782d4a20daaf13d020d4e
font_01_sfnt_off000083ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FF 10928 bytes
SHA-256: 4bb043c43e4f0bf9c19de5f6d41ce25b4882a40686e1382c1195c381693f30e8

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