PDF malware analysis — malicious · 82b257aa0e4084a6

MALICIOUS

PDF

65.3 KB Created: 2020-11-23 04:35:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 9aa81dfcfeeb84fd972315da1429dcbe SHA-1: 3e0015152ce74c5ef7bb6bc75a46753e8caa0929 SHA-256: 82b257aa0e4084a621c4a9c4eccde2538ae6dfd7cd6d87a83be86c1647024a18

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/123?utm_term=western+reserve+land+conservancy+thriving+communities'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware delivery attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9911

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://cctraff.ru/123?utm_term=western+reserve+land+conservancy+thriving+communities In PDF document text
- https://cdn-cms.f-static.net/uploads/4407813/normal_5f9ab60d51be6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368762/normal_5f87abc026760.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381980/normal_5fb4350b7b480.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454171/normal_5fa2a6254e5e6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367273/normal_5f8e10404b458.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/2bf8d3af-feba-4812-9ffc-7322e81211a5/conocimiento_de_la_escala_de_la_prob.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ceb6e33c-d328-4d2d-bb09-d07f1d8cf75c/kexadexutadoxikuzupi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0549ced0-0e3b-4884-a48c-ac759e3e59f9/18351026207.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_off0000c2c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC2C1	5528 bytes
SHA-256: `6eb2971155ac219ee697af4c42de51d30f322cb3df52c3e4aa2d52e9c7d6b895`
`font_01_sfnt_off0000d575.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD575	10256 bytes
SHA-256: `2e312ceba4e89b7fb2ede8a1faa043f4edb3b4430fe36d54fc026cf62eebdb3d`

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