MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting it is a 'social science class 10 cbse guide', which is likely a lure to entice users to click the malicious link. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL.
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=social+science+class+10+cbse+guide
- http://files.timmahekdds.com/uploads/1/3/1/4/131406303/birep_jabekadoroju_lisafa.pdf
- https://cdn.shopify.com/s/files/1/0435/4605/0728/files/masopekupupebipuzepakum.pdf
- https://cdn.shopify.com/s/files/1/0428/3714/7811/files/35257746930.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xogasetixudaxaw.pdf
- https://cdn.shopify.com/s/files/1/0435/4854/1079/files/barosma_betulina.pdf
- https://cdn.shopify.com/s/files/1/0428/9380/3679/files/pokemon_red_and_blue_strategy_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2132/files/bachianas_brasileiras_piano.pdf
- https://cdn.shopify.com/s/files/1/0428/5205/7244/files/69108073989.pdf
- https://cdn.shopify.com/s/files/1/0435/2330/9727/files/practical_node._js_book_2nd_edition.pdf
- https://cdn.shopify.com/s/files/1/0437/1188/9573/files/foputukofewolukixufalop.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodujanizovu.pdf
- https://cdn.shopify.com/s/files/1/0436/2698/7680/files/area_of_composite_shapes_worksheet.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_off00005e82.bin2f11168e48d6ddf832c4aa99e08d09bc46cac9d8e686bb7ec685eb031f921ff4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E82 | 5448 bytes |
font_01_sfnt_off00007107.bin1b55410a5c4c59681a5862d40ffd844fa6097a465269c610ec2979b274c38c7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7107 | 10040 bytes |
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