MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into downloading further malicious content. The document body and embedded URLs suggest a lure related to academic material, likely to trick users into clicking the malicious link. The ML classifier also 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.cc/pify?keyword=how+to+calculate+percent+abundance+of+3+isotopes+pdf
- http://files.blissfultransition.com/uploads/1/3/1/0/131070309/1288808.pdf
- http://files.valleybookstore.com/uploads/1/3/1/4/131482915/liwawebe_tirotafilekedap.pdf
- http://files.4chickstrailbags.com/uploads/1/3/0/7/130776485/4644860.pdf
- http://files.hacktheplanet.com/uploads/1/3/1/4/131406507/727cd3c39a.pdf
- http://files.deewhyhealth.com/uploads/1/3/0/7/130738875/zofawagegadiriwape.pdf
- https://cdn.shopify.com/s/files/1/0431/1613/4562/files/galoliz.pdf
- https://cdn.shopify.com/s/files/1/0428/7135/7596/files/98123547378.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31903895201.pdf
- https://cdn.shopify.com/s/files/1/0433/4410/1544/files/chemistry_regents_review_packet.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9874/files/kulaxuwano.pdf
- https://cdn.shopify.com/s/files/1/0430/6314/8706/files/46282190480.pdf
- https://cdn.shopify.com/s/files/1/0433/5009/8078/files/39196530104.pdf
- https://cdn.shopify.com/s/files/1/0430/6970/2306/files/11588559924.pdf
- https://cdn.shopify.com/s/files/1/0431/7328/1948/files/65748290730.pdf
- https://cdn.shopify.com/s/files/1/0433/8424/2337/files/44807183898.pdf
- https://cdn.shopify.com/s/files/1/0431/3815/4658/files/88135769516.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_off000070f4.bin51d3cd57245b4ef61191596d16f6b91080b7feb13b84be823890465e4d6a97cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70F4 | 5504 bytes |
font_01_sfnt_off000083c6.bin883ed9d74fff997fe9c6040c1f82025b76da15b2c5c24ab90e60ccc0ea8bf0d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83C6 | 11056 bytes |
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