Malicious PDF — malware analysis report

Static analysis result for SHA-256 747801f73da158a7…

MALICIOUS

PDF

37.2 KB Created: 2020-10-29 03:49:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 95270bb9c0c7699b5506f1920ce6c456 SHA-1: 0b2de1d44086556d6bcbb8c76adea04d10e87890 SHA-256: 747801f73da158a7b2713cd90b02f498c44beb9a4dac44e108e410d0146a84a5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains a large number of embedded links, forming a link farm, with the primary goal of directing users to a known malicious redirector URL. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the ML classifier strongly indicate malicious intent. The embedded URL 'https://cctraff.ru/strik?keyword=you%2527re+beautiful+lyrics+jeremy+riddle' is the most critical IOC, likely serving as a gateway to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cctraff.ru/strik?keyword=you%2527re+beautiful+lyrics+jeremy+riddle In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374853/normal_5f8cfd31b366a.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/xojisaxun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f87810704aaf.pdfIn PDF document text
    • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/fdc80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404753/normal_5f9749628412e.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/2638aa7d-c0ad-4c80-ae05-ba01e8f83f31/99498714148.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4fbe0f7-ec90-41c6-9f52-830f48483a0c/puvasovadog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15648343-481e-4d67-99c9-96561aba87aa/30510494743.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f326c753-b5f9-4414-8f64-f5cf4dd85d43/recursive_blueprints_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df6b7242-e75f-4501-98de-772fc9056b43/15450474581.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cce38ea-bbdd-4cba-a1d7-6d6c15c3d7bf/gilodenaxufoxumeforizu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/493d4f48-abf2-48d4-ad5f-063e405afeb8/23729773334.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/faaaefe0-f3f8-4d26-9ac7-e729b7cc1c32/enhancement_shaman_pve_guide_3._3_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b2a19c1-28b3-43d7-b486-00259337b8da/36035028578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de032c7e-3040-400f-85d2-38a5e6b7f9fc/those_who_cant_cheat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36e7ed6c-6453-44e2-979a-266f69654cc5/rorobitifugox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6689efc2-de08-4253-8f96-f7c355d566e0/vebaxaxujijefiviridamor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4c4052b-b36b-4eb2-8bf5-2cb246194a04/17493366598.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea1b9fa3-6026-4c84-9508-fead10bc0831/26009301617.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_off00005292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5292 5480 bytes
SHA-256: 3430908dfe4cd938445c2f2a2604e6e37d06289ad1d07f463dcbb65b40e704f8
font_01_sfnt_off00006532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 10304 bytes
SHA-256: e43603d04824e308b6182eb559fb17e04f55736638d7fec7fd2d0c4cb2295aba

Open this report in the interactive analyzer, or submit your own file for analysis.