MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains multiple embedded links, including one that redirects to known malicious infrastructure. The primary lure appears to be a fake 'graduate school attendance form' designed to trick users into clicking the malicious link. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL confirms a malicious intent to lead the user to a harmful destination.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://ttraff.cc/pify?keyword=graduate+school+tu+delft+course+attendance+form
- http://files.montgomery-jones.com/uploads/1/3/1/4/131437457/24f411b86.pdf
- http://files.madebyloulou.net/uploads/1/3/1/8/131871891/59bfb6ba928ffb6.pdf
- http://files.pugetsounddoodles.com/uploads/1/3/1/4/131437701/6856982.pdf
- http://files.haleycloud.com/uploads/1/3/1/0/131069886/xobuwemex_dawaloxo_wanowupeji_lirodetilu.pdf
- http://fuwura.succeedatcic.org/uploads/1/3/1/4/131438392/71494.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/9378/6791/files/11094173005.pdf
- https://cdn.shopify.com/s/files/1/0434/3015/0296/files/school_attendance_sheet.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7416/files/94754187885.pdf
- https://cdn.shopify.com/s/files/1/0433/1172/6750/files/net_framework_2._0_sdk.pdf
- https://cdn.shopify.com/s/files/1/0435/6295/9006/files/54454808624.pdf
- https://cdn.shopify.com/s/files/1/0429/3450/1535/files/savaviledilevunomu.pdf
- https://cdn.shopify.com/s/files/1/0435/2134/3647/files/68343498598.pdf
- https://cdn.shopify.com/s/files/1/0441/3207/3624/files/32149277277.pdf
- https://cdn.shopify.com/s/files/1/0429/6730/2295/files/kejojabolezafeposoj.pdf
- https://cdn.shopify.com/s/files/1/0437/7909/6728/files/62360685146.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061d1.bine978c5fa1dff6544bfe9a364e4b309a940c17005aa9176f5ffbfdfc23abc8190 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61D1 | 5292 bytes |
font_01_sfnt_off000073a5.bin7cc0d62de1605a673590c2af589d2a8ac927ebb2f74b08fb8560c169dad0dcf3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73A5 | 10044 bytes |
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