MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains numerous URLs, including a primary redirector at 'https://ttraff.ru/pify?keyword=reader+extended+pdf', which is likely the initial lure. The presence of a large number of embedded links suggests a broad phishing or malware distribution campaign.
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=reader+extended+pdf
- http://files.gekkosubudbali.com/uploads/1/3/1/4/131437438/4188892.pdf
- http://files.linnukas.com/uploads/1/3/0/7/130775197/numimux.pdf
- http://files.daybreakersolutions.com/uploads/1/3/0/7/130775987/addba17.pdf
- https://cdn.shopify.com/s/files/1/0428/6123/2294/files/3326140055.pdf
- https://cdn.shopify.com/s/files/1/0438/4410/8453/files/23658129493.pdf
- https://cdn.shopify.com/s/files/1/0434/4836/9319/files/perazifeguweru.pdf
- https://cdn.shopify.com/s/files/1/0436/9979/8166/files/11961685404.pdf
- https://cdn.shopify.com/s/files/1/0434/7074/9861/files/mexudejufixuz.pdf
- https://cdn.shopify.com/s/files/1/0430/5921/6537/files/diwojanepivopadelitixawi.pdf
- https://cdn.shopify.com/s/files/1/0429/7854/1722/files/78478710199.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/33672977438.pdf
- https://cdn.shopify.com/s/files/1/0433/5229/3541/files/sixuzazezodikevuf.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/fotorijigame.pdf
- https://cdn.shopify.com/s/files/1/0431/0843/4077/files/bujosaxuporonoxopusa.pdf
- https://cdn.shopify.com/s/files/1/0429/2637/5071/files/96368539921.pdf
- https://cdn.shopify.com/s/files/1/0430/1117/8649/files/6276435094.pdf
- https://cdn.shopify.com/s/files/1/0429/9338/5633/files/bojikikamupusep.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_off000073bb.bin49775113c0c678841fa70bac77dd9c6cb6bbaed0bd14124d744b68581e83e5a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73BB | 4900 bytes |
font_01_sfnt_off00008482.bind2aad200f11baf50b2090f4baa3f4930b7e0bbbb20531b3a1cad7af530eda598 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8482 | 11388 bytes |
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