Malicious PDF — malware analysis report

Static analysis result for SHA-256 414768e297a396cf…

MALICIOUS

PDF

43.2 KB Created: 2020-10-30 16:18:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 36aad317358ad961f56f094d10a19925 SHA-1: 14b8f9c81301e0781042e3b46b5f9b0d57744dea SHA-256: 414768e297a396cfee21f612752070d0e4de944ddee43686add5f63b8c4e8fb2
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.com/123?keyword=prevencion+de+accidentes+en+el+hogar In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420237/normal_5f9a57bae6f26.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/2453caf2-7586-451c-931b-119f907e4dd0/50535696648.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/moodle_ins_valldemossa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2038/files/fletching_osrs_99_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/1860/7521/files/st_james_catholic_church_perris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9366/2133/files/android_p_double_tap_to_sleep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/8074/0771/files/gexaperugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/6993/6294/files/getedexozuvakuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/1333/8822/files/xexuzugigamarabisobawurij.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/gokipekurepil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67b4b35a-6586-41ce-a6ad-892837de8c7c/21044174049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28670554-a516-4f31-81a5-73881aa2b043/19450969077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0118/6968/files/badere.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_off00006afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFB 5260 bytes
SHA-256: 3bac1dcb834912ad67b3eb00b0443fb89af41bbbd759a89804f9f277eb8926b4
font_01_sfnt_off00007cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDD 10812 bytes
SHA-256: 0888562b17278edc43543f8f8dc347712645c6d5558f61d7dc4b6b8898a273b8