Malicious PDF — malware analysis report

Static analysis result for SHA-256 14100013eeb7dd06…

MALICIOUS

PDF

46.4 KB Created: 2020-11-05 08:26:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1b2fc8b95a176daba548d740ea8bef1e SHA-1: 29be3d3085360022a31087ec4708d03fd7d84bf9 SHA-256: 14100013eeb7dd060a094d50fbb39a4d976fc5e07a9d08b9b1d7a0a4ff52fff4
94 Risk Score

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://ttraff.cc/123?keyword=demonstration+speech+topics+college In PDF document text
    • https://cdn-cms.f-static.net/uploads/4389127/normal_5fa30d6d874c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370547/normal_5f889193bde77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5f900395707e9.pdfIn PDF document text
    • https://wojeribexojuxu.weebly.com/uploads/1/3/1/8/131856158/daff31.pdfIn PDF document text
    • https://movulejovem.weebly.com/uploads/1/3/4/4/134470355/06ce69c8ce2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_5f8f2bcb60532.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f900da830b8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408588/normal_5f9282017b917.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/sewofexito.pdfIn PDF document text
    • https://jokatilowiwege.weebly.com/uploads/1/3/4/3/134369617/bekabokaduto.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/b07dc176-eec9-4a4b-bc72-843ba2babf64/armor_of_awe_quest.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/13940521739.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 5344 bytes
SHA-256: 9774e773bbf9f705078daae8aa806c06e0b9c841f4028d26bd12aec7318965d1
font_01_sfnt_off00008a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0B 10172 bytes
SHA-256: fe43f69d3f2a2f6f4a174784adba4b0f2614c9b85076a757c98d0d7bd2803d4e