Malicious PDF — malware analysis report

Static analysis result for SHA-256 56d5806c4b1190e3…

MALICIOUS

PDF

37.4 KB Created: 2020-11-06 01:43:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 68ce505d2baec8e609c588df9864c9b9 SHA-1: d342857ed698c1b6af22147eec97f06c7c1a94c5 SHA-256: 56d5806c4b1190e3b97e137367900bb2d2e66be3a8e72d6b0c71635a115443df
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://ggtraff.ru/aws?keyword=veritas+cluster+manager+java+console, is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious redirector strongly suggests a phishing or malware delivery attempt.

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/aws?keyword=veritas+cluster+manager+java+console In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5f9791d8b3850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416140/normal_5f9d67f7a3ac2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f92aa5646538.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f875a38eccce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402717/normal_5f95786e3c3b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379233/normal_5f8c712dd64e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366973/normal_5f87abce9b280.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lumixi/fagijamuwilob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/638efaa2-5c9a-48c9-bcff-4a670ffed339/50217654038.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7954211e-692f-4ab3-b927-f0d5c12450ed/95835362541.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/37350194463.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed8a472a-dda3-487c-9937-40faec357dbb/questes_sobre_independencia_da_america_espanhola.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/asi_se_dice_level_1.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_off000053e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E1 5220 bytes
SHA-256: 1c831f518d4df62448f22868722c31c8e2e76c1eee5a794359433a1051f3ff3e
font_01_sfnt_off00006599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6599 10384 bytes
SHA-256: 452510cc0e83997689239d56efc0407851b73e5c0c50ba3fa4138f0ec8648b0a