PDF malware analysis — malicious · 658afa1ff6121e09

MALICIOUS

PDF

74.8 KB Created: 2020-12-30 18:56:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 6388cb0dc88a41aa2ed3c883f99a74ad SHA-1: 85c8e267092cd518ac3f9b2fc2e187712d10e7a7 SHA-256: 658afa1ff6121e09b50d3c95534a081e13c84ae65de07b23e5c56dadd8c4fb69

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://traffnew.ru/123?utm_term=una+serie+de+eventos+desafortunados+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4424953/normal_5fc294a4da673.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424985/normal_5fa930e8993b7.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/jumedemimo/analog_clock_face_worksheets.pdfIn PDF document text
- https://s3.amazonaws.com/jiwisigetizoxif/maxuwuloragusibot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79851e04-e70c-4d78-a78b-8efa645f1b88/battle_boom_cheats.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/140c7812-426d-45f7-a19a-708199b5537e/ejercicios_matematicas_4_eso_aplicadas.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/76fa3e6b-df49-499b-831e-2d6c5cd490da/33606654420.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49294510-e7a1-434c-a93a-3e6d563b9fb9/poxeki.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6bc553d7-2105-4e7d-8e71-fa66b53d140a/88849899897.pdfIn PDF document text
- https://s3.amazonaws.com/xebuvuwov/superlative_adjectives_worksheets_printable.pdfIn PDF document text
- https://s3.amazonaws.com/povodijirig/wevovateledalenosofa.pdfIn PDF document text
- https://s3.amazonaws.com/fobupojowojon/wilixemep.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_off0000e5c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5C3	5052 bytes
SHA-256: `b7773293d814d4439c518c289ba7fcaa3a46243740fa23c0398e4d419e9de070`
`font_01_sfnt_off0000f715.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF715	11620 bytes
SHA-256: `6ee17541c390d36aead4d72526b8b107cbae620e737801b45523cdde78eacca9`

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