Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed992dfcc00a823a…

MALICIOUS

PDF

34.6 KB Created: 2020-11-03 20:02:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 0896a96268c5aa0e81cfbabcb174e119 SHA-1: 802db1da215fdff04f9bf0190f8349fb6b072f8a SHA-256: ed992dfcc00a823acebc00df11d1c1eaf0c2930bf552231f94f13a9a0cb36cd5
114 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The 'SE_CALLBACK_LURE' heuristic further indicates a phishing or tech-support scam context, reinforcing the malicious intent of the embedded link.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/123?keyword=bernalillo+magistrate+court+records In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368949/normal_5f8de12a3e23a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370317/normal_5f921430ddd70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450728/normal_5fa065f53e417.pdfIn PDF document text
    • https://fotijaxak.weebly.com/uploads/1/3/4/1/134108731/widatax_dufagadakiloku_lafuwa_feniliredi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411512/normal_5f9f343a5a6ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386594/normal_5f9233ae7089c.pdfIn PDF document text
    • https://nogegonimever.weebly.com/uploads/1/3/4/3/134340032/a987ff6cc.pdfIn PDF document text
    • https://mijelowiwiloz.weebly.com/uploads/1/3/1/1/131163856/5927243.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/e39d6778-b8cf-426b-8e9a-e173acd05343/76541344780.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c7f7143-3f21-4cdf-9595-8f91de4df424/30867229461.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f031533-8879-4944-99e6-b89aa836f588/vugosusewaduvalanefa.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_off0000496b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x496B 5308 bytes
SHA-256: fdd04b6fe461653869e8a380bcd2947866a9819b5ec9338e638b8ffe601ae966
font_01_sfnt_off00005b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B5C 10156 bytes
SHA-256: 783e8de368c041ebe59de579abaa17a9e44289b3efa2e7d29b89a8f3818fecb7

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