MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains embedded links that redirect to malicious infrastructure, specifically a link farm designed to host numerous PDFs. The document body, though partially corrupted, contains text related to a USPS change of address form, serving as a lure. The presence of a malicious redirector URL and the ML classifier flagging it as malicious strongly indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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=free+usps+change+of+address+form+pdf
- http://files.llaart.org/uploads/1/3/1/4/131483002/89dca.pdf
- http://nunilur.northernfitness.net/uploads/1/3/0/7/130739227/2503783.pdf
- http://files.girlpushespaint.com/uploads/1/3/1/6/131607600/jiderilanowopifur.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/4909/0200/files/filesystem_move_node.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81603963226.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12509012650.pdf
- https://cdn.shopify.com/s/files/1/0429/3158/5180/files/xowibinirodatutegavemix.pdf
- https://cdn.shopify.com/s/files/1/0429/7791/9129/files/foxofazadanuwumozigigovo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66048758492.pdf
- https://cdn.shopify.com/s/files/1/0439/2088/3880/files/19779433321.pdf
- https://cdn.shopify.com/s/files/1/0437/6556/3549/files/9034428001.pdf
- https://cdn.shopify.com/s/files/1/0434/6806/2872/files/73509225679.pdf
- https://cdn.shopify.com/s/files/1/0428/0261/0335/files/rokizizenuvijuxekejadawe.pdf
- https://cdn.shopify.com/s/files/1/0428/5261/4311/files/toxepilejedejegeralijuli.pdf
- https://cdn.shopify.com/s/files/1/0433/8266/9461/files/fosibusewojujon.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_off00004b08.bin23eaa106cd71e536dc2101bba57637fe2a3497788e973524cb2b141945bd1872 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4B08 | 5492 bytes |
font_01_sfnt_off00005d90.bine97f09d61cde010dadf7c9f4d2d6ae3626fc41c8be7de9259ec6f77f986f589e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D90 | 10076 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.