PDF malware analysis — malicious · c383ae9fd60272bd

MALICIOUS

PDF

75.7 KB Created: 2021-01-04 04:10:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17

MD5: a359d413015c6fadf4d944764549d63b SHA-1: 3098e9c94b6cd11894a06af1ca3802cabab946ed SHA-256: c383ae9fd60272bdc0704ce8a1d0c23a04101af0d303ab359d44b92005c4e33b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains a link to a suspicious external URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI is a primary indicator of compromise.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

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
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://traffnew.ru/123?utm_term=bluestars+prophecy+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4457881/normal_5fa4ab2bc2376.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366357/normal_5fc0f886054ad.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/roware/ecological_footprint_definition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/27015d0a-9be6-4b13-b460-27915ac0a1ec/56939952108.pdfIn PDF document text
- https://s3.amazonaws.com/fojaxexino/dapataropazorer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82731c08-8e7a-479c-b482-9f2f44cef2b9/center_brunswick_united_methodist_church_troy_ny.pdfIn PDF document text
- https://s3.amazonaws.com/mivokozibu/20972302928.pdfIn PDF document text
- https://s3.amazonaws.com/fikuvine/isometric_drawing_lesson.pdfIn PDF document text
- https://s3.amazonaws.com/loranoduzuja/36981769183.pdfIn PDF document text
- https://s3.amazonaws.com/lotibabakuj/filmorago_for_pc_full_version.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dc7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC7C	4260 bytes
SHA-256: `dcf978e68a79d12483a11bc939b274d410a56671814b17712b6761f191e9cb6a`
`font_01_sfnt_off0000eb1f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB1F	5396 bytes
SHA-256: `cd21438f62d06591fc07eaf96c9e3075723bff5cfca021cbd6e7600614cf2e87`
`font_02_sfnt_off0000fd7e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD7E	10692 bytes
SHA-256: `fa7e7f0190240be42711ca05720da9b047d71452e41233fd1047771b8a7b3dd1`

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