PDF malware analysis — malicious · bc42837ff4511064

MALICIOUS

PDF

69.1 KB Created: 2020-11-09 19:17:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 47ac08de2f6d5ca8d42f95498e46140a SHA-1: 1febaf9e95212492dfa5fb23392f303878d8894a SHA-256: bc42837ff4511064c902f1e14878f900686537aa9e1bc81fcec43c1d6e54e33d

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://trafffi.ru/123?keyword=spook+mary+roach+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366008/normal_5fa2a3879763f.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/ganubatebedoxez/juegos_de_jeff_the_killer.pdfIn PDF document text
- https://s3.amazonaws.com/xakapudakadu/keximodomekuwebeti.pdfIn PDF document text
- https://s3.amazonaws.com/subud/49780298551.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/da2d5e2e-f015-429e-b218-b33dd045388f/ddo_sneak_attack.pdfIn PDF document text
- https://s3.amazonaws.com/tetazino/rebunodoxorozupi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c6c8c561-1671-4a96-a2f8-d8228aa9b078/52120782772.pdfIn PDF document text
- https://s3.amazonaws.com/potofaw/zawanelaxufizila.pdfIn PDF document text
- https://s3.amazonaws.com/somamere/95810012026.pdfIn PDF document text
- https://s3.amazonaws.com/vazisi/38628013501.pdfIn PDF document text
- https://s3.amazonaws.com/napoledunadigo/french_for_you_are_welcome_anytime.pdfIn PDF document text
- https://s3.amazonaws.com/latufenaw/satipipowunajitopa.pdfIn PDF document text
- https://s3.amazonaws.com/pusumowi/butejutixeloku.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_off0000cffd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCFFD	5456 bytes
SHA-256: `7ed90ab55d7b827b28bb957764c617904bf494daedf5d99e7c07505bc394c694`
`font_01_sfnt_off0000e26a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE26A	10840 bytes
SHA-256: `3f8a4ee143455253e284ab94334fdb4c03c363ebcffee9d44f8a553ab445b599`

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