MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by the presence of a large number of external PDF links, suggesting a link farm. The document body contains urgency language, indicating a social engineering attempt to prompt user interaction. The primary IOC is the malicious redirector URL, which is likely used to deliver a secondary payload.
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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/wix?keyword=autodesk+inventor+professional+free+student
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/277b62_1220bcf828f3450ab802c8d6c052c707.pdf
- https://static.usrfiles.com/ugd/97368a_0858d4a902c641999f7c8aea775c3e8f.pdf
- https://static.usrfiles.com/ugd/9f6a24_1d4bbdf6f94a48ebb907b71fbe33da8b.pdf
- https://cdn.shopify.com/s/files/1/0433/5815/9006/files/factorio_science_blueprint.pdf
- https://cdn.shopify.com/s/files/1/0430/3273/9989/files/leiningen_templates_list.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/jakeduroki.pdf
- https://cdn.shopify.com/s/files/1/0429/8945/3473/files/91955551123.pdf
- https://cdn.shopify.com/s/files/1/0428/3380/5471/files/zejugapijuzipa.pdf
- https://cdn.shopify.com/s/files/1/0427/6341/9815/files/31821044412.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49605194079.pdf
- https://cdn.shopify.com/s/files/1/0459/2258/2679/files/gugite.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_off000054b4.bin154a6ca95ce6ee4bb3156c92f10e7d73089443ad75fdc074916c47c542bc073b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54B4 | 5148 bytes |
font_01_sfnt_off0000664d.bine3aafd41b521d99db6b92dfbc9c635d10d85ceeb1e31bc51a14dc580f84049f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x664D | 9716 bytes |
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