Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bee1d6e9e88567a…

MALICIOUS

PDF

135.2 KB Created: 2021-02-15 17:45:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3008b50ec639e8d15a00235e64496338 SHA-1: 9d405c24c86572230b6cf2afcf3df5403c21c1ef SHA-256: 2bee1d6e9e88567a172b3121dea840184f9e7a0aed958c1f07071e5131761dc4
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to various external PDF files, indicative of a link farm. One of the primary links directs to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://crophysi.ru/strik?utm_term=tipos+de+sistemas+de+informacion+geografica In PDF document text
    • https://filinisosiwox.weebly.com/uploads/1/3/0/8/130814007/a2f7394e77d1fae.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/gja2DsC/10799657463.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380078/normal_5fcb11b52f25c.pdfIn PDF document text
    • https://mitumeme.weebly.com/uploads/1/3/4/8/134879381/8976230.pdfIn PDF document text
    • https://wibixebaroz.weebly.com/uploads/1/3/1/8/131856543/rekokegiluk.pdfIn PDF document text
    • https://kasikijafeke.weebly.com/uploads/1/3/1/4/131406722/mavuleji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465924/normal_5fe3da5e8785b.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/wjiajgO/19158020431.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413563/normal_5fcf96ed2f027.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453906/normal_60172952184d8.pdfIn PDF document text
    • https://cdn.sqhk.co/xenaporo/Bichjgc/pancake_art_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/JijjdXN/ben_10_heroes_united_game_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373281/normal_6005e0e34037d.pdfIn PDF document text
    • https://nusupubibirimu.weebly.com/uploads/1/3/1/8/131871553/garon_sujuxirosugo_xomotajavo_tojof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412391/normal_6024c2735cb54.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423427/normal_5ff3a8ff5a969.pdfIn PDF document text
    • https://vixikubinimagap.weebly.com/uploads/1/3/3/9/133997110/majoratan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379744/normal_5fce2e7edb33f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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_off0001c576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C576 5180 bytes
SHA-256: 4757365ff638709a7a9a1f44432ce45a52c87cc5cf480f8ff3b4aa8fe0df31aa
font_01_sfnt_off0001d6f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D6F2 12460 bytes
SHA-256: 2cd24404738433da4c98aabe65fb18698c0e918d96ed763ded41e9b79f802541
font_02_sfnt_off0001ff4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF4D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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