PDF static analysis report

Static analysis result for SHA-256 a7a73e13c958701e…

SUSPICIOUS

PDF

44.7 KB Created: 2020-11-06 19:05:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bdd8c6d5d15fcbfb4152e8534ad24e3c SHA-1: 2f3719234fb767dd490363bb28e6db01c4f02ec9 SHA-256: a7a73e13c958701e346e9bad80a33121f93ba0f7ec10143495c89e469bd40d38
36 Risk Score

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/123?keyword=how+to+make+realistic+gravity+in+scratch+3.0 PDF link annotation
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/55331fb9a2e434f.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/vevapibatifuw-vesuvasix.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/2f8ca042a26b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://gibalon.files.wordpress.com/2020/11/31130515003.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1667b314-314a-4cf3-b330-41718792fbef/zasixixakos.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/cambridge_english_empower_elementary_a2_workbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a33f28b1-bd96-4660-ad04-86562ab9d693/quantum_chemistry_and_spectroscopy_engel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3db825a5-4d33-4c95-9f20-9eb9fc5b0bb0/54510208148.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/garajavidiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/35424186425.pdfIn PDF document text
    • https://pepumopa.files.wordpress.com/2020/11/68575337513.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a419d00-c8fd-4a8f-84cb-2a39e16cb768/gC3BCneC59Fi_beklerken_10.bC3B6lC3BCm_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5df5a43-d422-4f9d-aace-29dfee99b9b8/rogesin.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/guvoj.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/33930870899.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_off000064f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F1 5828 bytes
SHA-256: 53a1b97ce929e30354535e3ad0005f0ee58cb6f3141ba3a60fa8e65aeb35b9ae
font_01_sfnt_off000078c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78C0 14332 bytes
SHA-256: 50938e76032abd4687e3375639497cedd01a80637c86f39e9758f9a3a87666af