Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c70e80a818b92f…

MALICIOUS

PDF

44.1 KB Created: 2020-10-30 00:47:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2b81daa9ed8dd7f66bda97723a26f2a5 SHA-1: 39ad8e933e7a3798a35c6c267217a8517d402cc4 SHA-256: 05c70e80a818b92f50d502f83e31dfa073fa191f690f7fb01a3b02fc180ce2e6
102 Risk Score

Malware Insights

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

The PDF contains a lure related to watching a popular show online for free, which is a common tactic for phishing or malware distribution. The embedded URL, https://ttraff.club/123?keyword=watch+star+wars+resistance+episode+1+online+free, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is designed to lead users to a harmful site.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=watch+star+wars+resistance+episode+1+online+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4401972/normal_5f92f8996ba87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f8953845bae8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391305/normal_5f91ff0c07564.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370767/normal_5f8c076ea2e4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416132/normal_5f95d36487843.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2118/6718/files/simurulutagiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51337234-37ba-44f3-b7f9-b195ebb04d64/teduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/columbus_clippers_playoff_tickets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0b8b58f-082b-4f1e-9dff-9c64a35f6f93/80300452750.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9349cc99-7691-4b57-9841-0afc5324590c/77456625653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9484/4587/files/compress_to_4mb_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aa165c3-e0be-49f4-a20d-4f562087db94/zanir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3929/2068/files/86819011716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5702/0565/files/android_textview_center_alignment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9052/4318/files/zosuwurazaxiwumopiropewop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2614a1-d85e-41fd-a472-e676d52a5701/91443942028.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d03de20-d23c-42b8-97a1-03e943a7f906/nezopovimifot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2193/3985/files/lego_star_wars_at_st_walker_instructions.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_off00006bd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD3 5400 bytes
SHA-256: d566eb33251da266bd1646a276b863e68ce95d9c13e256bfea861e8f3aabf79d
font_01_sfnt_off00007e4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4B 10660 bytes
SHA-256: d5dc75e7b74d8c529b461680b674f3a1aa98c4abf0cdc1199470173946605029

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