Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d519a7a31aeee57…

MALICIOUS

PDF

30.4 KB Created: 2020-10-31 14:15:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d5ff742830831e8f98fbe560a0cf5bc4 SHA-1: 1e7041c73d80ba8d8546ee893b4fc3b5c73ff714 SHA-256: 3d519a7a31aeee57812cb0cda576778e53fac45c694642b327a568b6465bf17f
94 Risk Score

Malware Insights

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

The PDF document contains an embedded link that points to known malicious redirector infrastructure. This suggests the document is designed to trick the user into visiting a harmful website, likely for phishing or to download further malicious content. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

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://cctraff.ru/aws?keyword=characteristics+of+an+armor+bearer
    • https://cdn-cms.f-static.net/uploads/4405652/normal_5f98733fbb355.pdf
    • https://cdn-cms.f-static.net/uploads/4393772/normal_5f918e749dbcd.pdf
    • https://cdn-cms.f-static.net/uploads/4427793/normal_5f995da461d57.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ada2f2db-c8e2-48f6-8a09-8ef1d22ca716/dilikajol.pdf
    • https://cdn.shopify.com/s/files/1/0483/6245/5191/files/prentice_hall_geometry_chapter_1_test_answers.pdf
    • https://cdn.shopify.com/s/files/1/0502/1895/9048/files/kazagamo.pdf
    • https://cdn.shopify.com/s/files/1/0486/2735/1717/files/rixakuketuviga.pdf
    • https://cdn.shopify.com/s/files/1/0482/0605/3533/files/equidad_e_igualdad_de_gnero.pdf
    • https://uploads.strikinglycdn.com/files/e9ef5381-7ae4-4663-9d0c-3eb340da67ce/mega_filmes_online_grtis_site.pdf
    • https://cdn.shopify.com/s/files/1/0497/8629/0335/files/jubovawof.pdf
    • https://cdn.shopify.com/s/files/1/0505/0741/5722/files/81943518880.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e4e.bin
d7f88c10393eb30de309934bdc8a7bd3ae742ed204ec0333656f6a43357c8da3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E4E 5132 bytes
font_01_sfnt_off00004f94.bin
c7ab0049350633088492f50da0f3020c3e1bd1ecad4b52219f6282605807d404		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F94 8780 bytes

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