MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a string that appears to be a lure for downloading 'Undertale original soundtrack' and a URL pointing to the malicious redirector. The presence of numerous links, including benign ones from Shopify, suggests a link farm intended to obscure the malicious destination. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.me/pify?keyword=undertale+original+soundtrack+download
- http://fanined.becomingsarh.com/uploads/1/3/1/3/131383482/puteve.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/0262/6202/files/gym_workout_plan_for_beginners_female.pdf
- https://cdn.shopify.com/s/files/1/0429/6146/9596/files/matemticas_avanzadas_para_ingeniera_solucionario.pdf
- https://cdn.shopify.com/s/files/1/0429/7038/2490/files/80700769552.pdf
- https://cdn.shopify.com/s/files/1/0429/1539/7788/files/59881285395.pdf
- https://cdn.shopify.com/s/files/1/0431/4690/3709/files/nafelukosusorixawu.pdf
- https://cdn.shopify.com/s/files/1/0429/8863/4263/files/18294975123.pdf
- https://cdn.shopify.com/s/files/1/0437/1605/1109/files/bumavikudus.pdf
- https://cdn.shopify.com/s/files/1/0435/5879/7463/files/gujaxer.pdf
- https://cdn.shopify.com/s/files/1/0437/2309/6216/files/fajapapodakawetomimawez.pdf
- https://cdn.shopify.com/s/files/1/0428/3770/4867/files/pemawoba.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_off00004935.bin1285d249c711fbed63929029192d12226c0736bbe812f947657bbc4022e7efab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4935 | 5252 bytes |
font_01_sfnt_off00005b34.bin93b62c62119afa5d103c6f66cf527acc1916212ecfb47f0da4cbcd8798d96650 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5B34 | 10528 bytes |
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