PDF malware analysis — malicious · cdf414f01f05c0c6

MALICIOUS

PDF

73.4 KB Created: 2020-12-19 09:51:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03

MD5: ac1b074047ce9595f78fad4b8c7bc404 SHA-1: 5a38884d50a8eec2852923133efe7709318d2990 SHA-256: cdf414f01f05c0c67dc11e1c4a443292da3aefe6ee60335b2ee993fb0efee0ff

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that mimics a search result for downloading Android rooting software, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI are indicative of a phishing lure.

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://traffnew.ru/strik?utm_term=kingroot+android+6.0+apk+download PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387243/normal_5f938340b0745.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387565/normal_5f9b65f408250.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502698/normal_5fd1fe4181a5b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368238/normal_5f8f4dd0470fa.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/juduk/tipenomidubegemofonike.pdfIn PDF document text
- https://s3.amazonaws.com/luropi/chemistry_experiments_for_class_12.pdfIn PDF document text
- https://s3.amazonaws.com/gozilum/bob_holmes_fishing_guide_service_in_texas.pdfIn PDF document text
- https://s3.amazonaws.com/wujodibu/jomowisiwetuxuxekiruzo.pdfIn PDF document text
- https://s3.amazonaws.com/panokojol/kapevopodobajadosibe.pdfIn PDF document text
- https://s3.amazonaws.com/rowubunak/41266147555.pdfIn PDF document text
- https://s3.amazonaws.com/tonemakopinibem/88213929029.pdfIn PDF document text
- https://s3.amazonaws.com/muxozuvalubi/dezenipov.pdfIn PDF document text
- https://s3.amazonaws.com/zuses/1500126847.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_off0000dea7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDEA7	5400 bytes
SHA-256: `eddf076acb93974455b4acfe6c098d5a937dbb3f1c0f1a550203a10d2004c981`
`font_01_sfnt_off0000f130.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF130	11436 bytes
SHA-256: `4896704d61ed6f196b1bd6a2908c07e83b63a1b217134885bf70072d5c805592`

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