Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e92e672d67513e…

MALICIOUS

PDF

37.2 KB Created: 2020-11-02 05:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9fd24589bedac54d941fba186dcecb74 SHA-1: ddc9bb4f5166f954cbc614abdca93ceddff01d89 SHA-256: 08e92e672d67513e0ef69c432c48fe14bdf30cec640004a635679f42328c8ec0
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=polk+county+school+calendar+2019%252F2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4414173/normal_5f952390714d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fujadabez/coachella_valley_permanent_population.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5660/2529/files/64928261475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/tosuziwusodof.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/nenitopedosetu.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/skeleton_key_full_movie_123.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/ths_high_school_colorado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4726/2657/files/13549383580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2282/6144/files/99219297947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7556/6752/files/40581201149.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/gisadadiloxesemalokon.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_off0000528d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x528D 5712 bytes
SHA-256: fd5fbda74329d9621029c0be61f921f1f6cc1b1f28fb64e2145206c57d3a9de5
font_01_sfnt_off000065fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FE 9996 bytes
SHA-256: 48247fef02374904958eaa4a49c2fdd599b4aed2c393ae576175ee034276a080

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