MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, contains a reference to 'Arduino assembly language programming pdf' and a URL that mirrors this theme, suggesting a lure to trick users into clicking malicious links. 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=arduino+assembly+language+programming+pdf
- http://lipogufin.caluphc.com/uploads/1/3/1/4/131409090/depimujinapa-vikowupo.pdf
- http://files.berrycrofthub.com/uploads/1/3/0/9/130969920/4bf187892.pdf
- http://files.cowboys4heroes.com/uploads/1/3/2/6/132682929/11d28a05.pdf
- https://cdn.shopify.com/s/files/1/0446/2054/6211/files/93505090400.pdf
- https://cdn.shopify.com/s/files/1/0431/8789/6480/files/bewexapabivipujo.pdf
- https://cdn.shopify.com/s/files/1/0430/6881/7569/files/65604160532.pdf
- https://cdn.shopify.com/s/files/1/0432/8072/8224/files/melissa_rauch_nipples.pdf
- https://cdn.shopify.com/s/files/1/0430/7966/3765/files/78385129625.pdf
- https://cdn.shopify.com/s/files/1/0430/1383/2857/files/73766056293.pdf
- https://cdn.shopify.com/s/files/1/0437/1510/0822/files/54713333073.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/31649508939.pdf
- https://cdn.shopify.com/s/files/1/0437/6150/0309/files/business_english_for_beginners_a2.pdf
- https://cdn.shopify.com/s/files/1/0437/3928/3608/files/33282483804.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_off000076eb.bine9744d6ef3503f9a4ae2e86841d8bb8529532b78ea3ddd403ce1a38659fcc663 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76EB | 5592 bytes |
font_01_sfnt_off000089de.bin4ac49b33d7b7b8cdf42bf8e8b5553b19c656c810885962ecbff57e39a9df23e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89DE | 10220 bytes |
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