Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe058e78d2ed325b…

MALICIOUS

PDF

41.6 KB Created: 2020-10-30 04:20:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e5da86c531d781f37f9fa6b0270519e2 SHA-1: 2feee184aa33af22100f04ee715c2f5ae8c10dc3 SHA-256: fe058e78d2ed325b891c66e0952da84e0c98a674ff4fd7fee487ff5b56ccdb62
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://gettraff.ru/strik?keyword=erie+doctrine+flow+chart` is the primary indicator of this malicious redirection. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL in a PDF is sufficient to infer a phishing or malware distribution 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://gettraff.ru/strik?keyword=erie+doctrine+flow+chart In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375696/normal_5f8c409d7eeab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371514/normal_5f89da01d71bc.pdfIn PDF document text
    • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/jumutanemetavixemu.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/02e0d421-2d2a-4935-a65e-c9765615f98f/8560357004.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aab86480-eda5-4ea1-82d1-8537aa12a45e/nuwilid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c73ee4a-5658-4ac5-83af-ddb9a8959d3c/talowe.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/pijilujer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/dd_knight_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1028/5990/files/62233102951.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56aba049-dad2-4093-b073-647a791f5004/lg_lhb755w_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/0749/0199/files/26414491132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8460/2262/files/28052456440.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7cec4c6-4527-4051-9532-3dc46d950410/takinugezo.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/tagulexemixenowufakeg.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_off000064a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A0 4980 bytes
SHA-256: 90959abb8dc7711d6ad002f0bfc08ab766f35c55a5b3f6d63cc10a21640eb36e
font_01_sfnt_off000075a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A2 10648 bytes
SHA-256: 4031a5aec266a395a83a59289993837526f4c636390337d648172d4d71c6876b

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