Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d01d2e0c550dbc9…

MALICIOUS

PDF

33.3 KB Created: 2020-11-09 02:48:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5a9e600d68f1de65918af1039ca3a74f SHA-1: d322d03e626052a85fa8a27999cd565ee2d89888 SHA-256: 2d01d2e0c550dbc9136fbc6067f3b67c7ec3283cbf1f6efeb86d924c3368962f
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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/123?keyword=gutterball+2+free+online In PDF document text
    • https://tedawubav.weebly.com/uploads/1/3/4/3/134376018/3acb7b06b95f987.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/ecd5832f-9658-44c9-823e-dcb29825d532/35593084353.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d82fde5e-da78-4cb4-9ce6-6bfbba68bbfc/mebujigeligubosijerimutom.pdfIn PDF document text
    • https://wudavagen.files.wordpress.com/2020/11/88762027956.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8847cac4-56ff-404a-afec-1eb60acca500/17090794113.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/436a25f2-fa77-49cf-95c0-d38356012c84/raze_3_unblocked_at_school.pdfIn PDF document text
    • https://navisemuzezo.files.wordpress.com/2020/11/82992784847.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4abf7502-a32d-4976-bd38-e6ecb3f7de04/kofisemizid.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/37556434931.pdfIn PDF document text
    • https://jizobote.files.wordpress.com/2020/11/39732937745.pdfIn PDF document text
    • https://mixuxikorar.files.wordpress.com/2020/11/xewalaja.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_off000045f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45F9 4888 bytes
SHA-256: 16c3af11efd587d6261293f6c96bbff042d3b1a9ed1735ba2e34ca1a247a3e41
font_01_sfnt_off000056ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56AC 10088 bytes
SHA-256: 18a83b13fddbc8c04a3e3ec0931fa28e87e7ad2918665a19e8270e08f8563a8f