PDF malware analysis — malicious · 15b541c0ad85beba

MALICIOUS

PDF

97.6 KB Created: 2021-02-16 18:24:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: efd7a19dcc8435b1d2bd6c44eeab1705 SHA-1: 23a356381a5651822f7b6bae700e19b3c08af45d SHA-256: 15b541c0ad85beba182ed7fe84cd154124a44b5846ab5999639f8a4a26495c64

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it is designed to redirect users to a potentially harmful external resource.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://bologen.ru/wix?keyword=yumi+x+ulrich+code+lyoko PDF link annotation
- https://static.s123-cdn-static.com/uploads/4496216/normal_600654e3aacb2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457849/normal_602b5f3da2f1f.pdfIn PDF document text
- http://lasleymarkt.ru/polaroid_300_instant_camera_film_amazon37xsb.pdfIn PDF document text
- http://astropsychology.site/27170522263951mn.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467007/normal_5fec8122b5ab7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383695/normal_5fd80634475f4.pdfIn PDF document text
- https://jetosiwer.weebly.com/uploads/1/3/4/7/134767378/0182dd3ad74306.pdfIn PDF document text
- https://suzexefovewav.weebly.com/uploads/1/3/4/6/134640410/be3f4b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422637/normal_5fe4f6bd5e27f.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/fovezewi/kixijemob.pdfIn PDF document text
- https://s3.amazonaws.com/rolefosiju/warenojipa.pdfIn PDF document text
- https://s3.amazonaws.com/xuvamuba/animation_drawable_android_example.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_off000143d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x143D3	4984 bytes
SHA-256: `0f3bf0f8fcd2d041dde9bdac7d711e5fadf58c7c1a07adbbad46ea5abdc56c38`
`font_01_sfnt_off000154a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x154A8	10316 bytes
SHA-256: `d9e5ef3f760fbfcb787dedc118b91940a019c85488970d31814fc68f5a54b36b`

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