PDF malware analysis — malicious · cf83d06c405e98eb

MALICIOUS

PDF

66.6 KB Created: 2020-11-22 23:25:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: ddfdf45c7c9ffe39a484d932ee5f1a1e SHA-1: 18dcfe1d9ac293116c0f4a46c51f2d370a1917fd SHA-256: cf83d06c405e98ebef595cf49f9cc9c5d10efee22e8d3f42a33e2bcf8f46059a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by presenting a deceptive search result.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafffe.ru/123?utm_term=toyota+forklift+error+codes+a7 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4465935/normal_5fb2ae05caf81.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423772/normal_5f9ceb747e909.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4494648/normal_5fb5d9a470d0e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369916/normal_5f939cabdc617.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/fadedosi/atos_administrativos.pdfIn PDF document text
- https://s3.amazonaws.com/kakef/wuniranevalet.pdfIn PDF document text
- https://s3.amazonaws.com/gujutavevive/unblocked_games_2000.pdfIn PDF document text
- https://s3.amazonaws.com/tunenijexe/wusuxuvides.pdfIn PDF document text
- https://s3.amazonaws.com/minabiwa/gobadedumupuxisatajosav.pdfIn PDF document text
- https://s3.amazonaws.com/foneniz/88489748217.pdfIn PDF document text
- https://s3.amazonaws.com/kabisebax/cassandra_clare_mortal_instruments.pdfIn PDF document text
- https://s3.amazonaws.com/roxawo/anna_kendrick_book_pictures.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_off0000c797.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC797	5212 bytes
SHA-256: `3362960e7f09a7fa30c54eadb8f1a8b643b01ba972dff8d4abd946e0e288323b`
`font_01_sfnt_off0000d971.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD971	10744 bytes
SHA-256: `99045095adcb587fda5120a97de4dc6cd656d74b729d1460b45e79842773e51c`

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