MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a lure related to cancelling a gym membership, which is a common social engineering tactic. It embeds numerous links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=letter+template+cancel+gym+membership'. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports malicious intent. No scripts were extracted from this sample.
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.ru/pify?keyword=letter+template+cancel+gym+membership
- http://files.eldermooninternalarts.net/uploads/1/3/0/9/130969129/bd3b813c.pdf
- http://jerekawig.limoservicefriscotx.com/uploads/1/3/1/3/131384169/pojutel.pdf
- http://files.shapiroinstitute.org/uploads/1/3/0/9/130969399/lixalenu.pdf
- https://cdn.shopify.com/s/files/1/0437/1320/0278/files/fagemefaw.pdf
- https://cdn.shopify.com/s/files/1/0431/3153/5509/files/gravoply_sheet_size.pdf
- https://cdn.shopify.com/s/files/1/0430/7897/5639/files/kimevivin.pdf
- https://cdn.shopify.com/s/files/1/0437/8525/7112/files/aldosa_reductasa.pdf
- https://cdn.shopify.com/s/files/1/0427/7505/2454/files/82949474249.pdf
- https://cdn.shopify.com/s/files/1/0434/3123/1637/files/19995263353.pdf
- https://cdn.shopify.com/s/files/1/0432/9940/5979/files/27466557676.pdf
- https://cdn.shopify.com/s/files/1/0433/8591/3500/files/calendario_agosto_2020_para_imprimir.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006da7.bin2a29c25c84e09403efec58c37c8a76db0a466bc27d60aafba80f0d92a88f9afc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DA7 | 5528 bytes |
font_01_sfnt_off00008046.bina14e31fbc917b04e645a7df9cfd56fcec32391bc9de5fb11919cef67822a43f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8046 | 10608 bytes |
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