MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=medical+biochemistry+by+chatterjee+pdf+download', is designed to trick users into downloading content by appearing to offer a free book. The PDF also contains a link farm, suggesting a broader SEO poisoning or spamming campaign. No scripts were extracted, but the presence of malicious URLs is sufficient evidence.
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=medical+biochemistry+by+chatterjee+pdf+download
- http://files.judelane.com/uploads/1/3/1/0/131070751/e10d7adecb96a.pdf
- http://files.themealsmaven.com/uploads/1/3/2/6/132681294/2a0d763fedb.pdf
- http://files.kendrakoivu.com/uploads/1/3/0/8/130874113/jejup_vumido_bajigerabijuro_fopajuvixugali.pdf
- https://cdn.shopify.com/s/files/1/0453/8872/6440/files/shrimad_bhagwat_geeta_in_sanskrit_free_download.pdf
- https://cdn.shopify.com/s/files/1/0438/5816/5925/files/senesupekeleji.pdf
- https://cdn.shopify.com/s/files/1/0430/8402/1921/files/wuwitirakemi.pdf
- https://cdn.shopify.com/s/files/1/0438/9902/7611/files/kokelifasumovajofib.pdf
- https://cdn.shopify.com/s/files/1/0431/2501/4684/files/wukaguxag.pdf
- https://cdn.shopify.com/s/files/1/0428/2744/8476/files/4179642190.pdf
- https://cdn.shopify.com/s/files/1/0429/3348/5727/files/niregaponozaxofekamusofef.pdf
- https://cdn.shopify.com/s/files/1/0429/1906/7815/files/dirurubeta.pdf
- https://cdn.shopify.com/s/files/1/0437/7670/4669/files/case_hardening_of_steel.pdf
- https://cdn.shopify.com/s/files/1/0430/6177/2442/files/75504633953.pdf
- https://cdn.shopify.com/s/files/1/0434/9168/8610/files/centroid_of_common_shapes.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_off0001c224.bineb79c204b0f9e0dc750cb9fff44d6de16328c69c0bfba593aaefb1377425337d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C224 | 5812 bytes |
font_01_sfnt_off0001d5d8.bin0201a9c9760034cd363f0c6ab26354b5cb8dc55d35a27f3b880774e16633e33d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D5D8 | 12524 bytes |
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