Malicious PDF — malware analysis report

Static analysis result for SHA-256 b38865495a4a9f3d…

MALICIOUS

PDF

45.1 KB Created: 2020-10-05 10:10:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0bcce415a20162f42aea504b29d16770 SHA-1: 352cdcdfb07c1f058badb6c56b1e94ee5c5c03db SHA-256: b38865495a4a9f3d59ce93c066b20f9c3c372bc40894c0916c7304e9a5407192
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/strik?keyword=gta+san+andreas+cheat+book+free+download In PDF document text
    • http://seluzo.genawave.com/uploads/1/3/1/3/131398177/detanu_kavawape_zopenuri.pdfIn PDF document text
    • http://weperoz.mariapressentin.org/uploads/1/3/2/8/132814097/kelomukezub.pdfIn PDF document text
    • http://kuxope.kingdombooking.org/uploads/1/3/2/7/132712127/guwis-farugarive.pdfIn PDF document text
    • http://files.susansharpeart.com/uploads/1/3/1/4/131438680/jovusorijoworogifub.pdfIn PDF document text
    • https://site-1038503.mozfiles.com/files/1038503/vifilikupalikevif.pdfIn PDF document text
    • https://site-1041183.mozfiles.com/files/1041183/11688678987.pdfIn PDF document text
    • https://site-1037276.mozfiles.com/files/1037276/zugigulinavudirero.pdfIn PDF document text
    • https://site-1042343.mozfiles.com/files/1042343/43332869462.pdfIn PDF document text
    • https://site-1039390.mozfiles.com/files/1039390/xitetareru.pdfIn PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/70764862481.pdfIn PDF document text
    • https://site-1042658.mozfiles.com/files/1042658/furuwujem.pdfIn PDF document text
    • https://site-1040289.mozfiles.com/files/1040289/zusilififimevoweguxiwudoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d4ed9c10-b8cf-464a-8cfd-818d4e559dce/88524710032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecc5275c-8f9d-49ba-abcc-6bfc6441761b/18891800698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fc985d7-39d3-4b75-aa3c-3466ee1ed7a4/jatunaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8caaaf8-3870-4f92-9173-ce324321b2e5/29091206329.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58344fee-6903-47ad-b5a4-ba0d11db7ac7/53598672061.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000641b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641B 5176 bytes
SHA-256: 2fc4c26067c76cb14d747a292d363b7fcf275ee418169d517e8675b7b7a5f9be
font_01_sfnt_off000075bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BC 10476 bytes
SHA-256: 3a3868b7b7bc991a9cea35e67c01e9e20014d223c77936e3d89e2dc65763247a
font_02_sfnt_off00009937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9937 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.