PDF malware analysis — malicious · 0aa42a65739cb774

MALICIOUS

PDF

112.8 KB Created: 2021-01-01 13:51:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: cc1649804798637702cb484e8d9f66d1 SHA-1: 7dbbfc4c4558ddb10232519cb98a0e692846c783 SHA-256: 0aa42a65739cb774ecd5e19816b0b6cd0b9ff2bcf83e5c6e946f136e06fc57cd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file 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 an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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/strik?utm_term=parkour+building+jumps PDF link annotation
- https://cdn-cms.f-static.net/uploads/4443598/normal_5fb2999359e31.pdfIn PDF document text
- https://cdn.sqhk.co/firokizita/jhJ4NjE/burger_king_menu_breakfast_burrito.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383146/normal_5f8f4fb258be2.pdfIn PDF document text
- https://cdn.sqhk.co/razotefo/fzbYgfk/jenugilag.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407304/normal_5fb3793ba9281.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389571/normal_5fa78f040e628.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459776/normal_5fba431992e4c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445114/normal_5f9ea6799be22.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471985/normal_5fe4e28d67aec.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481072/normal_5fba01b498bd6.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/8f84aa99-086b-47d9-87b0-39f4c0e8c4b8/duvipexufimovabojaruk.pdfIn PDF document text
- https://s3.amazonaws.com/xuxifuzituwu/newap.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_off00017a84.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x17A84	5560 bytes
SHA-256: `384814667ed4f79cfd8b12fdcf056ddaf12e61f0ffd8cb77dae72e60f8783a96`
`font_01_sfnt_off00018d59.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x18D59	12972 bytes
SHA-256: `cde835d381e71d3e7a381f66c8b7566e248b3a2c5401e60936ea7ba68a91df86`

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