Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e14401473c8f46c…

MALICIOUS

PDF

39.2 KB Created: 2020-10-08 08:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 00cb9da2ecd773315ef25c292a9173b6 SHA-1: a825676ca480648319d2fe5e241117352486c35a SHA-256: 1e14401473c8f46ca2b38d2fda48185915ab9a653cd6e6d595f55e92f50ff22e
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/pify?keyword=tigard+high+school+athletics In PDF document text
    • https://site-1042554.mozfiles.com/files/1042554/15482705075.pdfIn PDF document text
    • https://site-1039612.mozfiles.com/files/1039612/sidunudawuwemasaso.pdfIn PDF document text
    • https://site-1036921.mozfiles.com/files/1036921/23799579195.pdfIn PDF document text
    • http://files.designetchingandawards.com/uploads/1/3/2/6/132680813/bubovit-vatowalunejem-gajutujuk.pdfIn PDF document text
    • http://jubabusa.aliciamakeupartist.com/uploads/1/3/2/6/132681947/65a2aec7e0b05.pdfIn PDF document text
    • http://files.chinchenst.com/uploads/1/3/0/7/130739809/9157142.pdfIn PDF document text
    • http://files.jo-edwards.com/uploads/1/3/1/4/131408432/dekatadixelanu_kebamewuted_zipuravonalepif.pdfIn PDF document text
    • http://files.melissaholden.com/uploads/1/3/0/9/130969494/1867188.pdfIn PDF document text
    • https://site-1038758.mozfiles.com/files/1038758/51555960357.pdfIn PDF document text
    • https://site-1039465.mozfiles.com/files/1039465/vefogizetowotobuz.pdfIn PDF document text
    • https://site-1039187.mozfiles.com/files/1039187/20005183385.pdfIn PDF document text
    • https://site-1036921.mozfiles.com/files/1036921/tuvitimagewug.pdfIn PDF document text
    • https://site-1039187.mozfiles.com/files/1039187/ziponinijibujesaj.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/8ceedf76-607d-4544-9a1d-fd3a1483b53d/ferunodoxakenelamitobali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1973305-ff3a-4085-acfa-d1442e2fc37f/28176109356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c8b21d9-31c7-4460-a5dd-743919b72f01/45218990236.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_off00005a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2D 5152 bytes
SHA-256: 8f3a1417d29ae4b4be94713b312a49190624b295088e740d8e3b1b801f007953
font_01_sfnt_off00006baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAF 10624 bytes
SHA-256: e89faa3f1b1c2cd96e8cf4069b12e1de84ec0a3f57a1f69ebe606fa85812ea95

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