Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee89ef60524fbb5e…

MALICIOUS

PDF

83.6 KB Created: 2020-12-21 18:47:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9c2b146b3c3f9f67e018c381eb8e9cfe SHA-1: ba0c5fa1ab9a3d5c3fbfcfd1480a0777bf5c9ba4 SHA-256: ee89ef60524fbb5e78a918dbf362d281346db48472dffc3e7de360331c1ed580
154 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 ClamAV and 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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=dingodile+voice+actor In PDF document text
    • https://cdn-cms.f-static.net/uploads/4408478/normal_5fa49a0ae73fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446377/normal_5fcc1fd690d2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414173/normal_5fa0535eed103.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378599/normal_5fab9fd0a261a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472204/normal_5fde79d5099d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476146/normal_5fb4b22ab9677.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366973/normal_5f87ea51b90c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457330/normal_5fd1bd7e0f863.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4c5518e72e5fdbcdf011/1606372440806/ketesavoburajawuwoz.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/44188730144.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e155104edf1d7780ac3e/t/5fc144063485235c86f54ed7/1606501383587/derivatives_of_inverse_hyperbolic_functions_worksheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC977 19868 bytes
SHA-256: dceeee886a3116a0f500d7b659ff9b71700ab170990e259c12142dcef4853ddb
font_01_sfnt_off00010837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10837 4988 bytes
SHA-256: 00d34eb01cf42717a765c4c8049335874813bf48c697bc65d8a3b6c0a51c7e5c
font_02_sfnt_off0001194a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1194A 11828 bytes
SHA-256: 4e9e00d8adf70757f93e7ce6cf481d38ef9b8a441d74bc782ddcbaf542a03b8e

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