Malicious PDF — malware analysis report

Static analysis result for SHA-256 992d5f7ad1a2f5d4…

MALICIOUS

PDF

46.6 KB Created: 2020-10-26 13:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 81fdf4d165748777b8da6c1bdefa39c9 SHA-1: 62af98b6c9da9e4077d78c139b5d783e9103b517 SHA-256: 992d5f7ad1a2f5d4e933748fc65f35e2b0757689e7fa740d83814f8a80e0e319
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/aws?keyword=adobe+premiere+cc+tutorial+pdf In PDF document text
    • https://kanudepu.weebly.com/uploads/1/3/2/7/132740929/7786bbaf.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/bilixanexonix.pdfIn PDF document text
    • https://fufivivol.weebly.com/uploads/1/3/0/8/130873849/zikula_kalefiwopuruda_rerobiza.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/tujufima_mabiziwogulola_sogesenonijubet_rezofete.pdfIn PDF document text
    • https://madovokego.weebly.com/uploads/1/3/1/4/131409717/5027016.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/duviviligazofaz.pdfIn PDF document text
    • https://wevuviwujito.weebly.com/uploads/1/3/1/6/131636984/wugukul-zamifuladanike.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/5100978.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/fikomuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007763.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007763.bin)
    • https://s3.amazonaws.com/daselex/1649952024.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/76046350669.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/10324767389.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/ocean_of_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94048cb3-4bd0-4e86-9ff4-d11d08954497/2024_solar_eclipse_totality.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/486fd0a1-106e-40db-8bef-23233ed007aa/98564841830.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0222b17-567c-4f9b-a8d8-0b7822a80def/asahikawa_tourist_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66b71f0b-17c7-4705-be40-c3785b8a162f/85034062594.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c809a388-2bed-4c47-90bd-823b584c6c50/male_elf_fighter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cb857eb-cd3a-45d4-857f-d8f923efa98a/wixegepebubotaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9b7a82b-79ff-4865-b36e-8bfde2f7bc5a/ruvuvapakal.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_off00007763.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_off00007763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7763 5252 bytes
SHA-256: dfa2d5e7bf71dcae2b9eff8b1130c0b2a32e6c9c4cc1ccca17471c0c620ea714
font_01_sfnt_off00008922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8922 10352 bytes
SHA-256: 9f5f9d1cefec2fd633a57cb54884706e3f1535ea01b41742a977bcb569fd6671

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