PDF malware analysis — malicious · 7a3c61b79f88729e

MALICIOUS

PDF

91.9 KB Created: 2020-12-03 11:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 1d4f1d6f4552b105e543c68874a4677b SHA-1: 1dae082a68705f2bdc6a152bc871afd5fde2b80a SHA-256: 7a3c61b79f88729e69d084ed4aed6c3598606a5eb023c5f8487919dcb39b1a7c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafftec.ru/strik?utm_term=table+topics+ideas+creative PDF link annotation
- https://cdn-cms.f-static.net/uploads/4381752/normal_5f90b581e4df7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/pusolefosex/bernard_shaw_heartbreak_house.pdfIn PDF document text
- https://s3.amazonaws.com/gezejoputiwinu/blank_fill_in_calendar_template.pdfIn PDF document text
- https://s3.amazonaws.com/kimoweworape/vabik.pdfIn PDF document text
- https://s3.amazonaws.com/lovomijelun/dejavulogodisofemuzamu.pdfIn PDF document text
- https://s3.amazonaws.com/vavabi/61216829320.pdfIn PDF document text
- https://s3.amazonaws.com/fenatagazise/bodivusozorofozal.pdfIn PDF document text
- https://s3.amazonaws.com/napejaxosinages/what_is_a_homologous_series_chemguide.pdfIn PDF document text
- https://s3.amazonaws.com/pizexopenaxu/the_expanse_download.pdfIn PDF document text
- https://s3.amazonaws.com/dikobepibelun/bootstrap_form_html_generator.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00011ed2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11ED2	4900 bytes
SHA-256: `9e818f7825c4f45a41229c9ebaa08861326b6f21ec42a1c4d2504e0db7789466`
`font_01_sfnt_off00012f84.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12F84	10988 bytes
SHA-256: `f9471212817d6d4e93add6b5684d662347b6c2f715d67269f4a0bf31e3fbbe15`
`font_02_sfnt_off000154a1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x154A1	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

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