Malicious PDF — malware analysis report

Static analysis result for SHA-256 3262c20864227c65…

MALICIOUS

PDF

44.9 KB Created: 2020-10-31 11:11:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: f26679892e9ba2fd93b0686ca9776f61 SHA-1: 536b3cfb10723191025d8d343ae40da376341fd0 SHA-256: 3262c20864227c6502427f5bfb5aa55854c5d22760202b2cb085078f473be881
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=immigration+political+cartoon In PDF document text
    • https://juzomewe.weebly.com/uploads/1/3/4/3/134350864/9031955.pdfIn PDF document text
    • https://tugoxalimirufa.weebly.com/uploads/1/3/4/3/134310877/rirulibe_xugabuvavene.pdfIn PDF document text
    • https://difiraboveju.weebly.com/uploads/1/3/4/5/134508976/sukoroveveseva.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/2715239.pdfIn PDF document text
    • https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/vaporekuwadabik.pdfIn PDF document text
    • https://wipaluxeko.weebly.com/uploads/1/3/4/3/134346688/gisisezamodo_bexamiwetatuxal.pdfIn PDF document text
    • https://gobumireg.weebly.com/uploads/1/3/1/3/131383916/lixot_riniborovaza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/ntn_spherical_roller_bearing_catalogue.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/modul_akuntansi_biaya_mulyadi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01b7911c-e4d3-48e6-bb24-e2a911a88a2d/26952034009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05a061d3-b8ca-4964-bafa-1630e30d3740/23143188675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2dca154-36e4-4117-a7d0-8e7af00b4dde/xuxezu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e322bd50-af99-4275-945c-cfaaead3cf8d/sawonobirolizusi.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/words_for_earth_element.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

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_off0000702e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702E 5012 bytes
SHA-256: afb83c04087a6857a47f892816839364becb41b22b4752b259c49151ec3493b2
font_01_sfnt_off00008124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8124 10928 bytes
SHA-256: 8ee2ca9d70c04f75be48e17c0ce08faaa72f220c1f743cf3471bda1a7eb05362

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