MALICIOUS
154
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 assigned a very high probability of maliciousness. The embedded URLs, particularly the one pointing to 'ttraff.ru', are likely part of a campaign to redirect users to malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
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=circadian+code+pdf
- http://files.allisonmsullivan.com/uploads/1/3/2/6/132681337/d8465.pdf
- http://files.ldceny.net/uploads/1/3/0/7/130775221/januf-fopigilu.pdf
- http://files.mirelajoja.com/uploads/1/3/1/4/131453215/d81dcd86a28d249.pdf
- http://files.ldceny.net/uploads/1/3/0/7/130775221/januf-fo
- https://cdn.shopify.com/s/files/1/0434/4990/9415/files/dazalepamekajuzadivalofu.pdf
- https://cdn.shopify.com/s/files/1/0428/7909/0855/files/40595058253.pdf
- https://cdn.shopify.com/s/files/1/0431/4886/9786/files/rokesoxezamesiletewuwegif.pdf
- https://cdn.shopify.com/s/files/1/0429/5373/6348/files/zubuxinatebediv.pdf
- https://cdn.shopify.com/s/files/1/0430/7173/3917/files/tunoguzawulumutejav.pdf
- https://cdn.shopify.com/s/files/1/0431/0892/5600/files/xukeb.pdf
- https://cdn.shopify.com/s/files/1/0429/9712/1178/files/52718633975.pdf
- https://cdn.shopify.com/s/files/1/0432/2174/5823/files/tabedajusopobaba.pdf
- https://cdn.shopify.com/s/files/1/0432/0002/0635/files/fimegimurenuvamulanigako.pdf
- https://cdn.shopify.com/s/files/1/0432/2512/0927/files/pumutav.pdf
- https://cdn.shopify.com/s/files/1/0430/1576/6177/files/97765423219.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_off00007df5.bin408a516a9fd604e170d01519b688db22d781891443c9c01bc8151a009926b915 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DF5 | 4668 bytes |
font_01_sfnt_off00008dcf.bin3b42bd05b31cdcf0e9fe706867d396e0d9238d79100eb1a2b537de7f74703457 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DCF | 10504 bytes |
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