Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e02123088a2ea11…

MALICIOUS

PDF

41.3 KB Created: 2020-10-16 06:24:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 80cb723b7bc96fb7166b5a0be69c69ca SHA-1: ef641f7811cba23e82840bea18d959787e29d95c SHA-256: 0e02123088a2ea11cfb11c025a361aff2681453207c7a594b89acd82df3f6410
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://gettraff.ru/123?keyword=free+worksheets+3+digit+subtraction+with+regrouping In PDF document text
    • https://site-1040360.mozfiles.com/files/1040360/sowowofewositem.pdfIn PDF document text
    • https://site-1040568.mozfiles.com/files/1040568/51316334734.pdfIn PDF document text
    • https://site-1039642.mozfiles.com/files/1039642/nafawilobebe.pdfIn PDF document text
    • https://site-1042842.mozfiles.com/files/1042842/examen_ingles_5_primaria.pdfIn PDF document text
    • https://site-1037906.mozfiles.com/files/1037906/52419013991.pdfIn PDF document text
    • https://site-1043086.mozfiles.com/files/1043086/36588717050.pdfIn PDF document text
    • https://site-1044292.mozfiles.com/files/1044292/43004860463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367648/normal_5f876689865ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374688/normal_5f88ff6fee445.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366346/normal_5f87586092f5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366324/normal_5f88bf8b6e0b3.pdfIn PDF document text
    • https://fanavepuru.weebly.com/uploads/1/3/1/8/131871984/3142750.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/fuxuxurizopiwisi.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/9599477.pdfIn PDF document text
    • https://netulomite.weebly.com/uploads/1/3/2/8/132814473/lijov-peximil-rexagaberelef-mexesetagav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f870b87efcbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366047/normal_5f873e9d7aead.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/8d9937a0-a13b-4371-87da-0e0a401327be/dakokuvaderoditit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38992f33-9717-4acc-9fd8-e633e0bac0d4/gajazexuposolijijefiwiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7707cd4-072c-4b76-8a61-a5287623a7cc/27226991220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a539f4e5-9ccd-4696-8095-2c98bb966708/28803016572.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10edb989-95e8-498b-b928-f4c2685f2142/mowasafubixitogurepovep.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_off0000603e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603E 5720 bytes
SHA-256: 3dbda107e478925317c059d7b360806500ecb22413b9e7f3d9e8c309ce30fa5e
font_01_sfnt_off000073bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BD 10816 bytes
SHA-256: 124993e28c5ac28673db3afe65bc6468ac4b41efded11eadd3ed8ac47feb50dc

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