MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of external PDF links, suggesting a link farm intended to manipulate search engine results or distribute further malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=mean+value+theorem+worksheet+pdf, which is likely used to redirect users to a malicious site.
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=mean+value+theorem+worksheet+pdf
- http://files.brickhouzecollections.com/uploads/1/3/1/3/131383456/187f3ffa64d3cd5.pdf
- http://vibewima.gurdainc.org/uploads/1/3/2/8/132814930/dodebapurodo_munurekuwuzamur_zitorejaruzi_lujegibememovu.pdf
- http://files.cubscoutpack125pride.com/uploads/1/3/1/3/131379951/vatatofolevojo_vesetolew.pdf
- https://cdn.shopify.com/s/files/1/0435/2560/3488/files/terrain_lod_redone.pdf
- https://cdn.shopify.com/s/files/1/0429/6690/9081/files/laboratory_methods_for_sensory_evaluation_of_food.pdf
- https://cdn.shopify.com/s/files/1/0432/8331/6891/files/29694527100.pdf
- https://cdn.shopify.com/s/files/1/0428/5687/4151/files/kagax.pdf
- https://cdn.shopify.com/s/files/1/0431/1285/7754/files/jisigagusigerodarifep.pdf
- https://cdn.shopify.com/s/files/1/0431/4329/9234/files/29473345420.pdf
- https://cdn.shopify.com/s/files/1/0431/0315/8433/files/bony_to_beastly_workout_guide.pdf
- https://cdn.shopify.com/s/files/1/0437/4190/5050/files/80262147874.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6982/files/58432010681.pdf
- https://cdn.shopify.com/s/files/1/0429/2496/6044/files/75116186792.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf43.binced820a863023f0b93f360b7eea4e424cddcbf66e9b807c2911d591495919af8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF43 | 5504 bytes |
font_01_sfnt_off0000d1e7.binb5eda3303a91b523475d9e7fa4c145c689d671816ffe2206ae736fcde29283b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E7 | 15932 bytes |
font_02_sfnt_off000103e6.bin9c5ded4f1667a40f19ba07ad12297e74442f8a88baf7f15211b0dc56f6cf2330 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103E6 | 16828 bytes |
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