MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text suggesting it is a lure for a study guide, which is then linked to a malicious URL. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious classification.
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/wb?keyword=official%20gre%20quantitative%20reasoning%20volume%202%20pdf
- http://files.m28global.org/uploads/1/3/0/7/130739043/9cf615a96bf9e.pdf
- http://files.sunfasteners.net/uploads/1/3/2/7/132712413/2809176.pdf
- https://cdn.shopify.com/s/files/1/0432/5143/3627/files/30768054121.pdf
- https://cdn.shopify.com/s/files/1/0430/3713/0914/files/mobojijuduwitepi.pdf
- https://cdn.shopify.com/s/files/1/0430/0151/2095/files/lozefewej.pdf
- https://cdn.shopify.com/s/files/1/0435/2675/0357/files/managerial_accounting_weygandt_6th_edition_solution_manual.pdf
- https://cdn.shopify.com/s/files/1/0434/9027/9574/files/gcta_philippines.pdf
- https://cdn.shopify.com/s/files/1/0436/2538/2051/files/best_android_spelling_test_app.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73930450062.pdf
- https://cdn.shopify.com/s/files/1/0428/2764/5084/files/58979004031.pdf
- https://cdn.shopify.com/s/files/1/0438/2579/1133/files/impractical_jokers_season_4.pdf
- https://cdn.shopify.com/s/files/1/0429/0471/5427/files/16241286857.pdf
- https://cdn.shopify.com/s/files/1/0439/1885/2264/files/44908651950.pdf
- https://cdn.shopify.com/s/files/1/0435/1819/7912/files/bodun.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_off00005983.bin3da478b34e79403664c1dd8d5d4b38c0460ca3cf4a105da7ea8b2dd8147f1443 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5983 | 5820 bytes |
font_01_sfnt_off00006d41.bin9a8d126080c80218f05115573c7ff75be58983081869e9340ccc7dbc8f168c6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D41 | 10232 bytes |
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