MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm and a critical heuristic firing for a malicious redirector, indicating an attempt to redirect users to harmful sites. The document body, though partially corrupted, suggests a lure related to a 'worksheet'. The primary malicious URL identified is https://ttraff.cc/pify?keyword=regulation+of+cell+cycle+and+cancer+worksheet, which is likely used to initiate a phishing or malware download chain. The presence of numerous Shopify-hosted PDF links, while many are benign, suggests a tactic 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.cc/pify?keyword=regulation+of+cell+cycle+and+cancer+worksheet
- http://files.smyrnapta.com/uploads/1/3/0/8/130874240/db7bc0f.pdf
- http://files.hat.ag/uploads/1/3/2/6/132682030/nibose_liraboraraduvan_weture_rodewiripaxu.pdf
- https://cdn.shopify.com/s/files/1/0434/1055/5047/files/56742648911.pdf
- https://cdn.shopify.com/s/files/1/0430/7176/6695/files/84749850181.pdf
- https://cdn.shopify.com/s/files/1/0433/8827/2807/files/emuparadise_workaround_not_working.pdf
- https://cdn.shopify.com/s/files/1/0438/5167/7856/files/89033109151.pdf
- https://cdn.shopify.com/s/files/1/0432/6083/8050/files/57423693239.pdf
- https://cdn.shopify.com/s/files/1/0437/2597/9813/files/41047549759.pdf
- https://cdn.shopify.com/s/files/1/0429/1022/0447/files/purebosawutesisodig.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12584167006.pdf
- https://cdn.shopify.com/s/files/1/0433/1775/6057/files/anticipation_secret_garden_sheet_music.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_off00004efe.bin7634dbd9f07b06c59daee4fed3c291f101c52ccd0382f05b1989c42058c69fa5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EFE | 5548 bytes |
font_01_sfnt_off000061fe.bind9fcbab128aab44bd9f3a9b87da57cb32c5890d588b359e3a74a1044576383cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61FE | 9976 bytes |
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