Malicious PDF — malware analysis report

Static analysis result for SHA-256 9550ad3da9296b7b…

MALICIOUS

PDF

46.3 KB Created: 2020-11-02 00:57:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7156bb1c4ec6239d1409ae9ac891e2e8 SHA-1: 53e85e87b0bf9ccff7d6ce152c30ff1391fbc34a SHA-256: 9550ad3da9296b7bf097809d4c2147898882fcf11c6d5322a1c6842217ae327f
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/123?keyword=sat+date+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385876/normal_5f8f68f916948.pdfIn PDF document text
    • https://topejaliwas.weebly.com/uploads/1/3/4/3/134305960/nuxepixute-nivilumofamuwam-wejodinitepowi-vazovovoxulufob.pdfIn PDF document text
    • https://terobatef.weebly.com/uploads/1/3/4/3/134397950/9528806.pdfIn PDF document text
    • https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/8315006.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/rawofiloxegakavi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375886/normal_5f9f1337683e8.pdfIn PDF document text
    • https://nojarotawufa.weebly.com/uploads/1/3/4/3/134313922/5770347.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/7f3116af-0a47-4d10-8945-236a25be804d/96587836980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aab7adc0-b7f9-4033-b13f-35ead78631f0/47291624617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bbb4a66-ecc5-46fe-b97b-a5f55691d580/vobatolukavul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f71a762c-066e-47c7-b7d0-d94ed656af64/faith_rpg_character_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/908fd21b-1707-4e1c-8795-2d70aa95165b/zozimise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca2d9c54-826b-4bf5-8e20-3d368367f8d0/fadubokupatupofoxufanin.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D1 4892 bytes
SHA-256: b8dc1f65c131ae8d0078ea1cb923c79eea30b10971f9572885ce3992a9c6d807
font_01_sfnt_off00007382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7382 10704 bytes
SHA-256: 5beb34e686f20a313a661363f7146b7f9b6b21c99a082e00627b21690e64f506
font_02_sfnt_off0000979c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979C 16164 bytes
SHA-256: f469c5aa689aa4c1965481b78cfaebbf1c3ebdad2306c7067134b7b4aaa0addd

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