MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and a lure related to 'Intellij format json single line'. This suggests the PDF is designed to trick users into visiting the malicious URL, likely as part of a phishing or scam campaign. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm strategy to obscure the malicious redirector.
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=intellij+format+json+single+line
- http://files.krasnoevents.com/uploads/1/3/1/4/131406780/pemekojitofarim_fivezifem.pdf
- http://files.mendyourbodymassage.com/uploads/1/3/1/4/131484133/1287726.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/siwizobudavegi.pdf
- https://cdn.shopify.com/s/files/1/0433/8784/6806/files/97776915056.pdf
- https://cdn.shopify.com/s/files/1/0429/5245/8396/files/food_biochemistry_lecture_notes.pdf
- https://cdn.shopify.com/s/files/1/0428/4583/1335/files/subl_command_not_found.pdf
- https://cdn.shopify.com/s/files/1/0440/0149/3142/files/12139125184.pdf
- https://cdn.shopify.com/s/files/1/0439/1239/6968/files/rational_expressions_worksheet_2_simplifying.pdf
- https://cdn.shopify.com/s/files/1/0434/0803/1893/files/spam_bot_discord_android.pdf
- https://cdn.shopify.com/s/files/1/0431/6659/7288/files/90723084391.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_off00005f5c.bin4c7825e9c43a60b6f5c8dc0f56d2592c44c12f53fef8c72dd08b97116c34d192 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F5C | 5100 bytes |
font_01_sfnt_off0000709b.binbf33fac9540c7e99f6676eb6c5df46a1c830c35d488170e7c500aa8382997c85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x709B | 10176 bytes |
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