Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d06be5c9ae09b42…

MALICIOUS

PDF

40.9 KB Created: 2020-11-02 08:12:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9baeb77136a9187197be667d887a7ba9 SHA-1: 569e017c3782b4e72e5e26d8d6539674780ffba1 SHA-256: 1d06be5c9ae09b42954d85ba1df55382aa3ebee61e1c667693adfcdd01a96c4e
94 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body text. This link, 'https://ttraff.club/123?keyword=download+wwe+2k19+apk+free', is designed to trick users into downloading unwanted software. The ML classifier also strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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.club/123?keyword=download+wwe+2k19+apk+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370319/normal_5f89660d46fc9.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/dbcac158-c8cd-46ce-9988-e016de5d4f50/sims_3_hybrid_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce99980-1fbc-47a5-aa52-6b92cd5b5ad9/kefabepewofewoveze.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/filo_artropodos.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/cetosis_peligros.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd40518d-4e37-4378-a532-5b28895fb8b2/8338339469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/6195/0646/files/adjectives_worksheet_esl.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/tagagevawagerabekakobez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27c9fdae-05d5-4fac-9ece-d604cea75149/what_to_do_when_your_bored_at_school_without_getting_in_trouble.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83d030b2-23a1-41be-b697-1966b0f80001/govufotufesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e146fa4e-b071-4f44-bfdc-80d95aaf4db2/39316992915.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_off000060a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A5 5352 bytes
SHA-256: 51694649fdcaf26737d843dec6cd19e3d387aa8a77d6611c349cc8b9b5c22de4
font_01_sfnt_off0000730a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730A 10480 bytes
SHA-256: d873116852c0c908c583887fc3e5740e3abee8d1bf5ae973ba102c5346028565