PDF malware analysis — malicious · d956517d5a9fbf18

MALICIOUS

PDF

66.4 KB Created: 2020-11-23 13:00:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 4d55f5cdada77afba79629b222072def SHA-1: 1246baa0e4f8f2594ee9967a7434582c429e8cb5 SHA-256: d956517d5a9fbf18c63498fdc78166e2994b64632002ad3fa0eafeabd33162e8

96 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 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 0.9998

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
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://trafftec.ru/strik?utm_term=apollo+fireplaces+636395839 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4408176/normal_5f9b9aa51a6b0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411937/normal_5fa0c4dc26c82.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413563/normal_5fb8dbeec6034.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377908/normal_5f98e02ae902f.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/c83290e7-875c-4408-aa0f-39dc1a1920fa/73935789462.pdfIn PDF document text
- https://s3.amazonaws.com/jezobasit/97068767566.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5010acad-457e-49cf-b2d9-83f9aa3ea4e6/class_in_america_2012_gregory_mantsios.pdfIn PDF document text
- https://s3.amazonaws.com/tabobujimo/1388717766.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0d74e0c-903a-47ac-9b39-01a4cbd7a910/toyota_4runner_1990_manual.pdfIn PDF document text
- https://s3.amazonaws.com/vogubivajavofu/38792191320.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b14f5063-23de-4644-a923-c45d5db7f383/purpose_driven_life_worksheets.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_off0000c48c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC48C	5792 bytes
SHA-256: `5c54dfd4755fca3a0ff27b8c4de8d064d03be9eefa5b32e74f2f70ca1adfeeea`
`font_01_sfnt_off0000d844.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD844	11120 bytes
SHA-256: `d761b95eab92fef1196da8ac91656e85c040421709c3dd113d24a84d5c97ab84`

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