PDF malware analysis — malicious · 9a6213c88f9c4087

MALICIOUS

PDF

66.8 KB Created: 2020-11-19 03:19:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 4724f4c74c3c23690a9689af63c2ce67 SHA-1: 2180fb00a03c228cb18ba4abd519ea87e66ec609 SHA-256: 9a6213c88f9c4087a3ec4f1b3be28c3563da4f252309936abda93dd7f06e4be6

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 0.9996

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://traffmen.ru/123?utm_term=concepto+de+gimnasia+general In PDF document text
- https://joxenawofin.weebly.com/uploads/1/3/4/3/134342561/lusadorejewi-vabunarekuwaxux-gaguzojilutuju.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/77fc5d6c-45af-4bd6-8fd9-26c4051831f3/nuxokidef.pdfIn PDF document text
- https://s3.amazonaws.com/nigimul/brief_publicitario_de_adidas.pdfIn PDF document text
- https://s3.amazonaws.com/vitelitubovuluj/20282625410.pdfIn PDF document text
- https://s3.amazonaws.com/navoburarovada/phone_number_for_verizon_insurance_claim.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c64516fb-c8ef-4445-883d-b2119405d32f/johann_van_helmont.pdfIn PDF document text
- https://s3.amazonaws.com/suxugipipolazog/jobonejamulaxusew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa11e69c-85f9-4414-89be-5ed16c76edda/pukipusonimedulipexex.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e83cb508-4805-4269-8c45-8880c8a3eabf/cuadro_comparativo_en_ingles.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f86ef81f-17ae-43e6-b60c-e15c97f0852d/32114895752.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c8b5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC8B5	5300 bytes
SHA-256: `7d31417193c15b304cf4f996e3928ac55d6b06069a90743b0cd50c5a1d649056`
`font_01_sfnt_off0000da9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA9D	11108 bytes
SHA-256: `3382f71ea6d6062df1b87176ceae473de4106d67f3df02c459607eaba2aac681`

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