Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e227af3fb8bc6c…

MALICIOUS

PDF

37.6 KB Created: 2020-10-30 17:25:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: aa22b6c48aaa638746770015a5ad0000 SHA-1: 5347734dad7d4a5811408edf2415f8f668f1c503 SHA-256: 95e227af3fb8bc6c8a1155997c678acb9919402a734b73f7e59abef6b44f9d0d
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://ggtraff.ru/123?keyword=cassandra+the+definitive+guide+2nd+edition+pdf+download, is flagged as malicious. The document body also contains this URL, suggesting it is the primary lure. No scripts were extracted, but the presence of a malicious URL 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/123?keyword=cassandra+the+definitive+guide+2nd+edition+pdf+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385417/normal_5f9350ea8b55a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372985/normal_5f94ea7235ce4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5f8eee834b1bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366976/normal_5f937a6f7842c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370303/normal_5f9202ca870ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384318/normal_5f8edda87fa3b.pdfIn PDF document text
    • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/tanuxetekefi.pdfIn PDF document text
    • https://foxagizak.weebly.com/uploads/1/3/4/3/134332010/lesorupiwi.pdfIn PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/visepijejasikari.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/586db310-0812-4d01-899c-eba1934c4edc/wixobubusus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7b1668a-1ac6-4882-a030-ef888467fdb7/85609825790.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/barisan_dan_deret_smp.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/dofitikomuwifisofafixij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30d9d760-2d35-42e5-8dd5-4883725725b3/disney_adventure_guide_salary.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_off00005382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5382 5492 bytes
SHA-256: f215fc5e860ba3ae1a644bb75c9dd8d69cb5654b880762b8938438779081b071
font_01_sfnt_off00006645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6645 10272 bytes
SHA-256: d6bdbd0974c3afe7dfbdc8bc5867fa4566673a6e492b42135d3db5c543f0b224

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