Malicious PDF — malware analysis report

Static analysis result for SHA-256 e77e4c1d89a7ff8a…

MALICIOUS

PDF

72.0 KB Created: 2021-03-03 10:47:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: c66d4d12c6f1e57671ea3085dbc0e878 SHA-1: 54d457cf15927e529601fce807389d3e925e4642 SHA-256: e77e4c1d89a7ff8ac2bab2c5c1a7188f78d3d9f9c3976ad1efc5c9d856419918
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. No scripts were extracted, but the presence of the external URI is a primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://fokemale.ru/strik?utm_term=ultratec+radiance+hazer+manual PDF link annotation
    • https://cdn.sqhk.co/kiribikiv/eifJja9/bracket_predictions_nfl_playoff_picture_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476420/normal_5fced4881350b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413235/normal_5ff68f3ca3f4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408878/normal_600fb7accda7c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382201/normal_5ff3295115487.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470385/normal_5fffc77e10d69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_60172b4cc24c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490141/normal_5fe0875dbd0a6.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefima/hbhjLAL/62176267880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409409/normal_60181585100e3.pdfIn PDF document text
    • http://aduo5.online/zigifageb4lf.pdfIn PDF document text
    • http://gufurebu.medianewsonline.com/download_the_bible_for_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415073/normal_5fe0bd5d17da1.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/58757488983.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462046/normal_602457c4c476e.pdfIn PDF document text
    • https://cdn.sqhk.co/jigitovewuk/KWHvNie/usa_free_dating_site_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/mogujawogo/MiiiDjb/xotevedofifu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450338/normal_5fdad1d7218ca.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bivojeda.atwebpages.com/how_to_solve_geometry_parallel_and_perpendicular_lines.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_off0000dc2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2A 5044 bytes
SHA-256: 6892c56d049751f8faff8952945ff99513a41b4b15501ec19454844a92fea1b5
font_01_sfnt_off0000ed2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2A 10868 bytes
SHA-256: 8491abddd74f70d79556e2ad2992b65f9a2e58f5585ac024f0d17d8a1cc6c375

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