Malicious PDF — malware analysis report

Static analysis result for SHA-256 b884a36650bb451a…

MALICIOUS

PDF

43.0 KB Created: 2020-10-15 23:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c033636706c3961e15a5ff464a1fcc3e SHA-1: 246cbb74778d4dd0797cfac60aec9fb21f7ac7ec SHA-256: b884a36650bb451acc5380b172cea77261a6fd5126a1fdd8029844f79dd933a4
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/123?keyword=fiches+p%25C3%25A9dagogiques+gratuites+primaire+pdf In PDF document text
    • https://jabiratunibi.weebly.com/uploads/1/3/2/6/132683422/garibaxuwekos-lofegos-damaki-numuvelo.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/xufupimegizuromuze.pdfIn PDF document text
    • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/kamedod.pdfIn PDF document text
    • https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/fonosapivomad_dexeverabibu_nevoviletapup_kefukexemuzor.pdfIn PDF document text
    • https://site-1040003.mozfiles.com/files/1040003/graduatorie_test_medicina_2020.pdfIn PDF document text
    • https://site-1042100.mozfiles.com/files/1042100/lefovijeruzafamirop.pdfIn PDF document text
    • https://site-1038547.mozfiles.com/files/1038547/lazumaxomatobuze.pdfIn PDF document text
    • https://site-1039174.mozfiles.com/files/1039174/52096872934.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/9808069.pdfIn PDF document text
    • https://welofubevi.weebly.com/uploads/1/3/1/8/131856084/4084745.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/e9ff54.pdfIn PDF document text
    • https://meporolokiso.weebly.com/uploads/1/3/2/6/132681401/sekuxugikibebu_nudofigewisamew_jamedidow_temofa.pdfIn PDF document text
    • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/vizajo_luzirofonedona_biwutoje_vufikopop.pdfIn PDF document text
    • https://site-1039538.mozfiles.com/files/1039538/xurolufubi.pdfIn PDF document text
    • https://site-1038454.mozfiles.com/files/1038454/54357497635.pdfIn PDF document text
    • http://boutdegomme.fr/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1719/8497/files/mountain_thunder_coffee_coupon_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d5e4d91-b452-478f-abbe-be63c66d498e/wuwadiripajopijejel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54f04c54-23d6-4bbe-8e03-e6098b168c9a/22649663448.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_off000064b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B7 5760 bytes
SHA-256: 66fb03a77cfcb78042b2244e39f8490d11fb98418b971eb658a3831c51d08976
font_01_sfnt_off000077de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DE 11232 bytes
SHA-256: f0e8b774bdb900a367803609627a4f2a32118d88072f15f6dfd97a778fa5d831

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