MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL and a keyword related to academic development, suggesting a lure. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.
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=physical+and+cognitive+development+in+adolescence+pdf
- http://files.fantasysumo.us/uploads/1/3/1/6/131637308/fogevapojozigot-tusid-puvelig-rijewovoza.pdf
- http://files.fishingboatsontario.com/uploads/1/3/0/7/130775245/vojijolidab.pdf
- http://files.horaianhouse.com/uploads/1/3/0/7/130776714/nidofafal-nividob-pupotafofepu-wabumonu.pdf
- https://cdn.shopify.com/s/files/1/0428/3065/9751/files/gopenetepemijevo.pdf
- https://cdn.shopify.com/s/files/1/0432/1751/8751/files/nojotukuf.pdf
- https://cdn.shopify.com/s/files/1/0434/7274/8710/files/bepelupev.pdf
- https://cdn.shopify.com/s/files/1/0437/2417/7576/files/kugetelorizusig.pdf
- https://cdn.shopify.com/s/files/1/0427/8249/0791/files/71069254223.pdf
- https://cdn.shopify.com/s/files/1/0435/1148/0472/files/formato_certificado_medico_escolar_para_imprimir.pdf
- https://cdn.shopify.com/s/files/1/0432/7240/5157/files/17829580684.pdf
- https://cdn.shopify.com/s/files/1/0427/9622/0572/files/bhartiya_kala_ka_itihas.pdf
- https://cdn.shopify.com/s/files/1/0429/8443/9971/files/japji_sahib_english_translation.pdf
- https://cdn.shopify.com/s/files/1/0440/7328/7830/files/lopuruto.pdf
- https://cdn.shopify.com/s/files/1/0438/0708/0608/files/dig_dug_unblocked.pdf
- https://cdn.shopify.com/s/files/1/0431/1829/7245/files/mazeke.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_off0000646d.bin41bf14305413b24c2e59ae96e2a5e1504bb7130ec0ddd13c7f7b1d544e5d968b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x646D | 5636 bytes |
font_01_sfnt_off00007790.bin7ca77aa2d6650d44193897cd934c8dc8dbcfe8200f27329fd2922b54ab01a122 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7790 | 10388 bytes |
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