PDF malware analysis — malicious · 97045622f2c33702

MALICIOUS

PDF

69.8 KB Created: 2020-11-17 02:36:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 2c6b3f9ba0cab87da49fd148fd1c2509 SHA-1: 940de22e424db3f3c6dcd47d31e0a604536eedc4 SHA-256: 97045622f2c3370266e7ffd971bc88f669ba60c856a9357dc7d71efb78e616eb

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and 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 0.9900

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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?utm_term=exercise+physiology+project+ideas In PDF document text
- https://soxokelu.weebly.com/uploads/1/3/4/4/134494323/7855a29c8c1df0b.pdfIn PDF document text
- https://sopulekazixov.weebly.com/uploads/1/3/0/7/130776801/kojona_fujirusafosixil_dujufidiva.pdfIn PDF document text
- https://kufazijofiw.weebly.com/uploads/1/3/0/7/130776126/mujokovot-jafudubiliref.pdfIn PDF document text
- https://ruzunaxatan.weebly.com/uploads/1/3/4/3/134340268/ab812164038b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416493/normal_5f9ffe20310c6.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/bfad24a4-ad4e-4af0-99fe-5790944d8afa/dovikunokimogejoxibew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eca7c4a9-4410-42e5-abfe-358ce5559440/impossible_test_summer_answers.pdfIn PDF document text
- https://s3.amazonaws.com/xumakomowi/kijedabexovoperoju.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_off0000d4d2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4D2	5540 bytes
SHA-256: `b16052706a6f593dc0831b004608f5d67f6af5b01e10827d55c8067687523694`
`font_01_sfnt_off0000e7b5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE7B5	10192 bytes
SHA-256: `8a6051c1f5fd982ab88aac311b68cecc98baf5dfb3269a0b49d25c2d65df3860`

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