PDF malware analysis — malicious · 500d6438f0a42174

MALICIOUS

PDF

69.4 KB Created: 2020-12-27 05:29:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03

MD5: a235dedac4e97eec9470789d6db20cdd SHA-1: 840d11e09b240be7e6167de854b69d66f0bc99e0 SHA-256: 500d6438f0a42174931f5aa20773e67c01bd9d04ebdb44ddc186f06a4be5ea74

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the PDF structure and heuristics strongly suggest malicious redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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://gettraff.ru/strik?utm_term=gun+sounds+download+free In PDF document text
- https://cdn.sqhk.co/rabuzopat/EhahiB8/diy_toy_basketball_court.pdfIn PDF document text
- https://cdn.sqhk.co/fawabanof/igjhhjh/6861130452.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/d719b4ba-c4dd-44c0-9365-cad87fbe98a7/59752268188.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3a7426e-0039-491e-a127-f762de673f20/cydia_impactor_runtime_error.pdfIn PDF document text
- https://s3.amazonaws.com/wazorixekunafob/2955031680.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82cde23e-8330-4cea-9b5a-5b27e0d7c6c1/zixiseratimiwodatasobika.pdfIn PDF document text
- https://s3.amazonaws.com/laradusa/idle_champions_starter_guide.pdfIn PDF document text
- https://s3.amazonaws.com/sefiwegegagu/megigofe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d4526015-68e3-496a-9a14-5fd26aa7fb44/math_brain_tricks.pdfIn PDF document text
- https://s3.amazonaws.com/kotenu/82483698325.pdfIn PDF document text
- https://s3.amazonaws.com/senodiw/sulixip.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_off0000d355.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD355	5024 bytes
SHA-256: `7e489d4b942caa82849b5e8d06df1d9798d39fdc862e817edbeaab26bcc0aa94`
`font_01_sfnt_off0000e48e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE48E	10872 bytes
SHA-256: `c948ae4a6a4ac062498bd424a9911a5625415a2a7c107e539b33999a788c60f9`

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