PDF malware analysis — malicious · 8cc628c6b85adcfe

MALICIOUS

PDF

67.6 KB Created: 2020-12-17 18:20:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 70b6bce9bc661cc7b82ef82d2a0fd980 SHA-1: ea21574239d1f86e77fdbb96d43f39b24cc0be53 SHA-256: 8cc628c6b85adcfe75e452a4f89a294adf3a3e7f2cd224da20e9913441f0a0d5

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 downloading a malicious application. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of an external URI points to a download lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://trafficel.ru/strik?utm_term=avia+maps+apk PDF link annotation
- https://static.s123-cdn-static.com/uploads/4477386/normal_5fc6056f23901.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371013/normal_5f8974c5af228.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378613/normal_5f95094298c4b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420939/normal_5fa2c18037cbe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370778/normal_5f9339400e85e.pdfIn PDF document text
- https://depumubawaminuk.weebly.com/uploads/1/3/4/2/134236244/bimakerimoxer.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0f2eef3361272aee8100/1606225710485/kaboniwolinowule.pdfIn PDF document text
- https://s3.amazonaws.com/fejakixoweka/gmail_email_signature_templates.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc1651bc89e1c4b8fc1e357/t/5fceca9001eaf4591e16b721/1607387793325/cash_crusaders_diamond_rings.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe381218e72e5fdba2657b/1606301714477/east_mecklenburg_high_school_charlotte_north_carolina.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_off0000cb47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB47	4952 bytes
SHA-256: `13f5a8fea08aa6a74822afd6fffa2bd8a87037315b72bc41380882c296efc379`
`font_01_sfnt_off0000dc1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC1A	11232 bytes
SHA-256: `6a6e5aaed8c5d7295d84441b0c15a7da0dfb91b32d06c797edffeafa0327862e`

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