Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee2ce2df9ec2390…

MALICIOUS

PDF

39.1 KB Created: 2020-09-20 21:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6aa2142aa15950bbdf3f2971eaaa91b7 SHA-1: d30f14ab82959565a998ecff601866ef13e5ba3a SHA-256: 6ee2ce2df9ec239035a6ca8432953165ef23ee8153bdcd261ade5ce08d8c9de7
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.com/wix?keyword=new+catholic+answer+bible+rcia+program In PDF document text
    • http://mufusemus.juniperlaw.ca/uploads/1/3/0/8/130814328/wuvuni.pdfIn PDF document text
    • http://noxozobat.ascendthroughsound.com/uploads/1/3/2/7/132710714/73920.pdfIn PDF document text
    • http://files.forasplitsecond.com/uploads/1/3/1/3/131398125/9125676.pdfIn PDF document text
    • http://nakulare.brandito.net/uploads/1/3/0/7/130776008/c0512094658.pdfIn PDF document text
    • http://wavaxap.asthecrowfliesquiltshop.com/uploads/1/3/0/9/130969724/1418962.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://cdn.shopify.com/s/files/1/0436/4884/3934/files/99583997895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5020/4327/files/free_modern_powerpoint_templates_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5062/3385/files/matafuxibeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/fake_phone_number.pdfIn PDF document text
    • https://35a651d2-d118-4c6f-81bd-65093adaad2b.filesusr.com/ugd/370ea2_e4b5760305fb456786c38e770d740256.pdf?index=trueIn PDF document text
    • https://f0c4dfdf-0b37-41c4-9864-38ffacfeb45f.filesusr.com/ugd/accd1f_0a2539364f204b4bb54fb6e5fc9ece05.pdf?index=trueIn PDF document text
    • https://00f6b5e9-333d-4ee6-8422-a6f502778bf3.filesusr.com/ugd/a421e3_a0e47c42fe884d05b51d3b9ac8ef9461.pdf?index=trueIn PDF document text
    • https://3305c516-da7f-49b7-8f05-128a180fd000.filesusr.com/ugd/cf79db_734fb878994f4055ba7b954e6370ec85.pdf?index=trueIn PDF document text
    • https://c45a98a0-0e53-478e-966b-fdadd376e53c.filesusr.com/ugd/485053_9145c3a0485f4914924bfd1965cb6d71.pdf?index=trueIn 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_off00004c40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C40 5336 bytes
SHA-256: 8dc261633334beaf0606aab3bb50754bb728269d4329333e4b1d72176049c542
font_01_sfnt_off00005e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3C 10256 bytes
SHA-256: 3d8e8f570d3e384fc0081f2c694d5d9017264b440d786795b7b4396f55501cd6
font_02_sfnt_off0000814d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814D 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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