PDF malware analysis — malicious · 35ca3d2dfd3c8d4e

MALICIOUS

PDF

82.5 KB Created: 2020-11-24 02:38:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: d9c2501e129360e5a84fb96ee6e59f83 SHA-1: d61063f99fffd96efbb9d093d8cf6ba65e901264 SHA-256: 35ca3d2dfd3c8d4e6e5f4aca21a4af51c874c53747eaa63e292cbb9e3d5fb5ea

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://traffset.ru/aws?utm_term=magazine+ad+mockup+free PDF link annotation
- https://cdn-cms.f-static.net/uploads/4376866/normal_5f90e3511298d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408721/normal_5fb6ba378281c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368750/normal_5f891205e06f2.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/bc8dde17-a75d-4549-b3d6-962660bd5aea/wesazotorizozalemomuveba.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/99e5a23a-218b-40ef-bd59-6cd4e851da54/minecraft_tree_mod_pe.pdfIn PDF document text
- https://s3.amazonaws.com/zakunafu/building_information_modeling_bim_software.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ff85b1f3-cb8c-4acc-9b42-fd5e9dced53b/descargar_libro_de_yunus_cengel_term.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/368c7bb6-10d9-459e-aab9-c28bc3ecf200/philips_respironics_manual_system_one.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c7d9e3a4-ca36-4288-9b82-15b15ba4a64b/critiquing_floral_arrangements_worksheet_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/846827c1-35f2-4613-820c-dcf0f5eebe09/novuboginekepojojavewap.pdfIn PDF document text
- https://s3.amazonaws.com/dusined/58698777788.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_off0001078d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1078D	5384 bytes
SHA-256: `316933faea620d9b3b1ddc75e8af182434ac9cc85545f8c0c3214863d5728836`
`font_01_sfnt_off000119eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x119EB	10492 bytes
SHA-256: `401332749575c2a26027d14a06490c8d7f375d85ee6df2a0cf36be0f318212e6`

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