Malicious PDF — malware analysis report

Static analysis result for SHA-256 2232515cb8cc9b06…

MALICIOUS

PDF

45.4 KB Created: 2020-11-03 20:05:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e9175ddfca7f0b583f14e3b98f2b3a45 SHA-1: d3476e59a88632233df6fb2484a93b77a0d7ec36 SHA-256: 2232515cb8cc9b06e6d616177e6653c93e46be7a765c24d371b3df68dc04504e
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://gettraff.ru/strik?keyword=new+york+state+us+history+regents+2020 In PDF document text
    • https://kotonimurapuva.weebly.com/uploads/1/3/4/4/134440920/nafiwezije.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/c4249875-6a63-4db0-b2e6-c80a757407d4/tiloduvelusijilisebur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0289/5270/files/prem_ratan_dhan_payo_movie_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/gagaginakobolozabukibiso.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/is_gatorade_a_homogeneous_mixture.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/mekaxopiki.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/11634609623.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56bb631b-db4e-4144-89da-aa4b0415a4ce/tilixe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e474a0e-8405-4f6d-bb52-b30e52b3e1b8/koto_je_sagor_nodi_mp3_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/1605/5715/files/13778293810.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c4e9a3d-1eae-4c5d-9539-6691f21be876/stolen_lucy_christopher_epub.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/72471333948.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/answer_to_multiplication_problem_called.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_off0000645e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645E 5296 bytes
SHA-256: 427fe6ea8afc8a37dafbbc49c9fa8e956eadd7e3c7d655c8135383202aea502e
font_01_sfnt_off0000767a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767A 10612 bytes
SHA-256: 56942d3f5e6ea5753f6f72fb4fae73c02632e85044f0a57d9ed69de08dc6b2d3
font_02_sfnt_off00009a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A98 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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