Malicious PDF — malware analysis report

Static analysis result for SHA-256 e239e86be9427ea9…

MALICIOUS

PDF

44.5 KB Created: 2020-10-28 05:03:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 4239d1c26d74641de143ffe4f0b7e099 SHA-1: 8f3a55259ab63899c808163f77f7f4f0a4374b64 SHA-256: e239e86be9427ea952e3ab6b0d4ad668e464494721f016735688a365c79c0423
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://ttraff.link/123?keyword=recon+ron+pullup+program+results In PDF document text
    • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/xamibewamifotu_najop.pdfIn PDF document text
    • https://ganulexotugoris.weebly.com/uploads/1/3/1/1/131164012/dbf340.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/5683587.pdfIn PDF document text
    • https://jusujonolixutuw.weebly.com/uploads/1/3/1/3/131379247/7878155.pdfIn PDF document text
    • https://fuvipizewovotat.weebly.com/uploads/1/3/1/0/131069886/0f65b14dc759.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rotesojelunemiroto.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/7199464.pdfIn PDF document text
    • https://wuwotozon.weebly.com/uploads/1/3/4/3/134315251/gixelosi-xizivudoguja-nofusivu-bosamuzepixan.pdfIn PDF document text
    • https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/dixibepiwusi_lenobeg_nijazopixafuli_wisat.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006e72.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006e72.bin)
    • https://s3.amazonaws.com/kavitokolezub/an_apology_for_poetry_original_text.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2a85ca7-5135-4b52-95c3-d5f20f74b84c/61237920845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/679e9d3e-586e-41fb-8383-c93ac2a43684/the_beginners_keto_diet_cookbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93db89c4-5e0d-483d-b839-05b57312f4ac/5_on_5_flag_football_plays_for_8_year_olds.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62f79585-b11c-4c07-8774-a46fa4b55854/21218963655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96968014-2a45-4bc3-9d42-ac04157d52eb/the_abominable_bride_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/assumptions_of_dependency_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/possessive_adjectives_and_pronouns_exercise.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/aneurisma_aorta_addominale.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/82932382106.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23c527bd-270f-4eae-825f-fa04500e205b/high_school_chemistry_book_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cf217d8-592c-4a1e-b430-5a80fc5e174b/84420225868.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2816dc89-f0d9-4403-9e75-8c0f239f2f40/25191676582.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_off00006e72.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E72 5260 bytes
SHA-256: 3c235bab7c1abdc04b6a04acdf8ff2fd4dc935301317ee764ece92dbf5d29c04
font_01_sfnt_off00008039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 10656 bytes
SHA-256: 4a2f2c439e11640bdde5ede72d6ba486c416602f8c22a2770563ad90174b4e73