Malicious PDF — malware analysis report

Static analysis result for SHA-256 350f0c1389c41744…

MALICIOUS

PDF

43.9 KB Created: 2020-10-25 20:46:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3f58fda99b235f822f4badfe5c64924e SHA-1: dbf22a23910d7f272583147df4f6e5d75bd3ade3 SHA-256: 350f0c1389c417443839716cdb50a31996c0d9e0ccae6f6e59277beed1b6c5b9
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/aws?keyword=python+language+notes+pdf In PDF document text
    • https://rofexigu.weebly.com/uploads/1/3/0/7/130738805/mazogesunu.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/4d2f17ad71fb9.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/foburadip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413000/normal_5f949cf509f0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368760/normal_5f8a5c79940dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369306/normal_5f8fb9fbc0d16.pdfIn PDF document text
    • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/6268850.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/zanazanekoxel.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/rotizizalipi-xulejowo-wegevok-xutijub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/tadideme.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/juzedizesirideped.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/joindre_deux_en_un_seul.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/aerated_autoclaved_concrete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff308176-9746-4f7d-9933-9ad9c9f87853/gonekameperarufezetinup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d9ace49-e64f-4864-9873-21f18f02aad9/dedegusejitoxezilamogegof.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/vazifot.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/fozeworupusodo.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/lebim.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_off00006a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3F 5308 bytes
SHA-256: 1b624e4e95853a4f3adf880b78422178c113558542cdf1e70793040598bbd2c6
font_01_sfnt_off00007c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C50 11100 bytes
SHA-256: e6aa05529ffb55d1cd6ed5d1b86bab943c7b2e7fba13bdcd055c5db7ee622eb0

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