MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'uppercase alphabet tracing worksheets pdf' and the malicious URL. This suggests a social engineering tactic to drive traffic to a malicious site, likely for further exploitation or phishing. 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.me/pify?keyword=uppercase+alphabet+tracing+worksheets+pdf
- https://static.usrfiles.com/ugd/37321e_7b67b85791954972acd02694b1f8884d.pdf
- https://static.usrfiles.com/ugd/d13e1f_7f192bf588b54c65a654d9d62bd6d9de.pdf
- https://static.usrfiles.com/ugd/f8de3e_3d37e3f6646b42968f0f7e90271a1e14.pdf
- https://static.usrfiles.com/ugd/1e11d0_7bb309328cb446c68fde6388c833c4a2.pdf
- https://static.usrfiles.com/ugd/8b9728_2945dfc9331049cfbb35202a8051da5a.pdf
- https://cdn.shopify.com/s/files/1/0431/0715/6128/files/bodyguard_2011_3gp_movie.pdf
- https://cdn.shopify.com/s/files/1/0437/1123/4197/files/dulexegep.pdf
- https://cdn.shopify.com/s/files/1/0430/7809/0901/files/7550784141.pdf
- https://cdn.shopify.com/s/files/1/0429/8945/3473/files/metex_m-3610_manual.pdf
- https://static.usrfiles.com/ugd/e6e573_8fe37e5a54734b5d8cb999a79cf71e0f.pdf
- https://static.usrfiles.com/ugd/1715bf_82058259a35244a0a1a22c6521256e3e.pdf
- https://static.usrfiles.com/ugd/b8c837_6095cd605a4b43bca7bb6f59728d8c0f.pdf
- https://cdn.shopify.com/s/files/1/0432/0873/6928/files/36076986009.pdf
- https://cdn.shopify.com/s/files/1/0432/6519/6197/files/wave_motion_formula.pdf
- https://cdn.shopify.com/s/files/1/0433/8250/5628/files/html5_templates_bootstrap_free.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_off00004a53.binb3ab24af4592a6134ec8ddf386b7090d69a127c843506740ad6eb59f74c64902 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A53 | 5704 bytes |
font_01_sfnt_off00005dc2.bin5bb7aeb3c7b0439d71899a760f40984afb7dc7b209e6a5abe3f96d14d1afcd34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DC2 | 9724 bytes |
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