MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'network security books pdf free download' and the malicious redirector URL. This suggests the document is designed as a lure to drive users to malicious infrastructure, likely for further exploitation or malware delivery.
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/wb?keyword=network%20security%20books%20pdf%20free%20download
- http://files.tricitysouth.ca/uploads/1/3/1/3/131380480/4c47cc1ba01.pdf
- http://files.muddyriver.org/uploads/1/3/1/4/131409244/zasogotagijosaz_daxivizozojole.pdf
- http://files.maydaystudio.com/uploads/1/3/0/8/130874211/xinalulebufilaril.pdf
- http://files.cheshirepool.net/uploads/1/3/0/7/130775974/wobofito_fizojujupipuje_lijodeli_goromodijoti.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ferenap.pdf
- https://cdn.shopify.com/s/files/1/0430/5184/3737/files/dekiguleduk.pdf
- https://cdn.shopify.com/s/files/1/0428/4376/6950/files/9081156530.pdf
- https://cdn.shopify.com/s/files/1/0430/0197/0837/files/viredomapeb.pdf
- https://cdn.shopify.com/s/files/1/0427/5588/3175/files/rufapibexuboxetira.pdf
- https://cdn.shopify.com/s/files/1/0437/3646/5559/files/elements_of_photogrammetry_book.pdf
- https://cdn.shopify.com/s/files/1/0431/2222/9397/files/xetefapip.pdf
- https://cdn.shopify.com/s/files/1/0428/7892/7014/files/83077715366.pdf
- https://cdn.shopify.com/s/files/1/0438/0930/8829/files/vilel.pdf
- https://cdn.shopify.com/s/files/1/0447/3788/8410/files/vocabulary_for_academic_ielts_writing_task_1_part_1.pdf
- https://cdn.shopify.com/s/files/1/0431/5840/5276/files/18804275490.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_off000061f4.bina4342eb02002aa533d2b82f0a304a1aed1ebc4998c6ec08405753289bfab147d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61F4 | 5516 bytes |
font_01_sfnt_off000074e5.bin117e6aca90b8ea6d614d348238a17466e40f25fb130e29094570c2f4db3172a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74E5 | 10016 bytes |
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