MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=chesterfield+weather+report', suggesting a lure related to weather information to entice users to click the malicious link. The ML classifier strongly indicated maliciousness.
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=chesterfield+weather+report
- http://files.thebigbowcompany.co.uk/uploads/1/3/0/8/130813922/1873299.pdf
- http://files.mommalovesyou.net/uploads/1/3/1/6/131606094/vabufupox-magagifal-vititibeju-sojagox.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tutokufumetuja.pdf
- https://cdn.shopify.com/s/files/1/0434/3490/1671/files/75874185802.pdf
- https://cdn.shopify.com/s/files/1/0430/6193/6285/files/aciduric_flat_sour_sporeformers.pdf
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/20604757046.pdf
- https://cdn.shopify.com/s/files/1/0430/7350/3386/files/wexawureziriw.pdf
- https://cdn.shopify.com/s/files/1/0440/0958/6853/files/97554275585.pdf
- https://cdn.shopify.com/s/files/1/0430/6799/8362/files/variable_types_in_java.pdf
- https://cdn.shopify.com/s/files/1/0438/9126/1595/files/matutatuwobibijo.pdf
- https://cdn.shopify.com/s/files/1/0435/0181/3915/files/bankruptcy_act_2020.pdf
- https://cdn.shopify.com/s/files/1/0428/0372/4455/files/filmic_pro_6._6._1_apk_cracked.pdf
- https://cdn.shopify.com/s/files/1/0433/8024/4643/files/17295194011.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_off00005157.binadd9089940b70076fa716d59792e633bab4d135f40b556e9d420322d4c7ce04e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5157 | 5128 bytes |
font_01_sfnt_off000062cc.bin1fedf0639ad02d153a06c23f035e1d869f0e0bdf584767372bb719186d8e2c77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62CC | 13016 bytes |
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