Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d2c2443555ec70…

MALICIOUS

PDF

44.4 KB Created: 2020-11-03 00:32:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 38810badd29595bb1161fc915f133ccb SHA-1: 25a86b6ce2019eee4feedb5ee686f3a3d83a5e9f SHA-256: 11d2c2443555ec700f80da072e0b33320dfcc30209fcf9d53daee31beb390934
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains embedded links that redirect to a known malicious URL, ggtraff.ru, which is likely part of a phishing or malware distribution scheme. The document's content, presented as a user manual, is a lure to encourage clicks on the malicious link. The ML classifier also strongly indicated maliciousness.

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://ggtraff.ru/strik?keyword=cuisinart+air+fryer+toa-60+user+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4373261/normal_5f9ccb0bcdff8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454807/normal_5fa082beb4a61.pdfIn PDF document text
    • https://xivenisulebitok.weebly.com/uploads/1/3/1/3/131378814/vasefanesi.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/1088394.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372967/normal_5f9bc3ffa90d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367296/normal_5f8ae9c77f20e.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/tajefizuzifojomawo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f9ea7a8c40a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393348/normal_5fa015dc10a1f.pdfIn PDF document text
    • https://zozesikijep.weebly.com/uploads/1/3/4/5/134586683/60aca6d8a.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/e3ba8095-bf63-43d2-9219-8ae436b206ec/hospital_administration_degree_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6452/2435/files/tai_lopez_book_pre_order.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4980/3159/files/lixuvukonewaziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/2702/6079/files/texisexoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2381/7623/files/lelodir.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_off00006db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB2 5248 bytes
SHA-256: 6d9881b16e2a8152a361dacb4fca012eb4e2e29dcbcd1ac862dd4d3dab5cc37e
font_01_sfnt_off00007f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7F 10816 bytes
SHA-256: 8e9e31e2d90b5be7b7bb713c297a686e02cb7bf92492f358f445416669225c85

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