Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a0d7cc32f646e8…

MALICIOUS

PDF

44.0 KB Created: 2020-10-05 02:32:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a9312d22f16a6e39a28751ae9ec0fc0a SHA-1: e6a553e082f8e5b54c9b37dfbbf5600dff048b42 SHA-256: c0a0d7cc32f646e8cc948a5cc96add5186a16444ef79704fe91e9627077b58ed
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/strik?keyword=sap+report+painter+manual In PDF document text
    • https://site-1040360.mozfiles.com/files/1040360/9407146846.pdfIn PDF document text
    • https://site-1036786.mozfiles.com/files/1036786/rupirulijuro.pdfIn PDF document text
    • https://site-1036835.mozfiles.com/files/1036835/8734205768.pdfIn PDF document text
    • https://site-1036820.mozfiles.com/files/1036820/jufofekuwofip.pdfIn PDF document text
    • https://site-1039132.mozfiles.com/files/1039132/19391415845.pdfIn PDF document text
    • http://files.wizaurad.com/uploads/1/3/2/7/132740804/f4ade8.pdfIn PDF document text
    • http://xubibob.qwiksolar.com/uploads/1/3/2/8/132814930/2190568.pdfIn PDF document text
    • http://gevenij.bondingandbirth.org/uploads/1/3/1/3/131383323/zumetuv.pdfIn PDF document text
    • https://site-1037141.mozfiles.com/files/1037141/wiwaz.pdfIn PDF document text
    • https://site-1039506.mozfiles.com/files/1039506/solodokuvajepufavil.pdfIn PDF document text
    • https://site-1039350.mozfiles.com/files/1039350/tigawoxumopefufololemoxen.pdfIn PDF document text
    • https://site-1036909.mozfiles.com/files/1036909/53302794515.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/9112e675-8810-4bcd-906e-2ae94426f71f/33565105305.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65c6ba15-2162-4df5-9d91-7679b5c651ea/newil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/297ea9d7-763f-48d5-a3d1-4465bfafdbcc/17458400020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb263b97-e500-4aba-8946-23d97cf8d512/29403927781.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83a828fd-bb8e-49de-a3aa-24f7f67f58a0/55491653901.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_off00006eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBA 4888 bytes
SHA-256: 2309006e6f11849d2d60907ef728c60e80e5677f56b6b36a9ef1895d02a63cc8
font_01_sfnt_off00007f43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F43 10512 bytes
SHA-256: 13bfe337a38b1d332ddfaee4549776433054293ff5c800434b26bcc565e98ae3

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