MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to academic syllabi, suggesting a lure to trick users into clicking the malicious URL. The ML classifier strongly supports the malicious nature of this PDF.
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.com/pify?keyword=iit+b+tech+computer+science+syllabus+pdf
- http://files.bostonmedstaffing.com/uploads/1/3/1/8/131871642/f3e4d4a.pdf
- http://gozorefuv.stphilipstdenis.com/uploads/1/3/1/3/131383775/7bd28ca.pdf
- http://files.mrsbrandal.com/uploads/1/3/1/4/131406234/tatupejemozusevesax.pdf
- https://cdn.shopify.com/s/files/1/0446/5659/1011/files/du_b._ed_entrance_exam_syllabus_2020.pdf
- https://cdn.shopify.com/s/files/1/0434/4119/3110/files/15166874239.pdf
- https://cdn.shopify.com/s/files/1/0436/3101/8142/files/real_feel_temperature.pdf
- https://cdn.shopify.com/s/files/1/0440/6145/8582/files/ruxadiliru.pdf
- https://cdn.shopify.com/s/files/1/0437/0202/6393/files/22041817408.pdf
- https://cdn.shopify.com/s/files/1/0436/9956/8795/files/86735558171.pdf
- https://cdn.shopify.com/s/files/1/0435/8144/0168/files/biosynthesis_of_quinine.pdf
- https://cdn.shopify.com/s/files/1/0428/1863/3894/files/46889185486.pdf
- https://cdn.shopify.com/s/files/1/0431/6279/6186/files/alquran_terjemahan_bahasa_inggris.pdf
- https://cdn.shopify.com/s/files/1/0431/8022/8759/files/vyond_comedy_world_character_creator.pdf
- https://cdn.shopify.com/s/files/1/0435/4480/5525/files/vurezulivexukomiw.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_off00005f95.bin50d06e0772aea03b41d0ad8cdd9fa4100f2387da96fb0afaf75bb86553f10646 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F95 | 5456 bytes |
font_01_sfnt_off000071f1.bind97de922480bb828d7e5e72a1bb66991128df67968b4987419802e8c69128fcf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71F1 | 13804 bytes |
font_02_sfnt_off00009cdb.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CDB | 4324 bytes |
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