MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.cc/pify?keyword=factors+affecting+anaerobic+digestion+pdf, which likely leads to further malicious sites. The document body itself is heavily obfuscated, but the presence of numerous external links and the critical heuristic firings strongly indicate a link farm or redirection attack.
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=factors+affecting+anaerobic+digestion+pdf
- http://naraxol.operationshapeup.com/uploads/1/3/1/3/131380213/jubabirejisiw-lofisu.pdf
- http://files.mrhso.org/uploads/1/3/0/7/130738559/b04139ca976590.pdf
- https://cdn.shopify.com/s/files/1/0465/3193/6414/files/gesto_da_tecnologia_da_informao_ead_estacio.pdf
- https://cdn.shopify.com/s/files/1/0437/8771/4721/files/fodoni.pdf
- https://cdn.shopify.com/s/files/1/0437/8122/6657/files/how_to_become_a_woman.pdf
- https://cdn.shopify.com/s/files/1/0440/5320/1046/files/icloud_icon_for_android.pdf
- https://cdn.shopify.com/s/files/1/0430/1937/0659/files/46158425941.pdf
- https://cdn.shopify.com/s/files/1/0454/3024/3484/files/11173100683.pdf
- https://cdn.shopify.com/s/files/1/0432/2535/0301/files/54654595929.pdf
- https://cdn.shopify.com/s/files/1/0430/7035/7661/files/adobe_audition_cs6_tutorials.pdf
- https://cdn.shopify.com/s/files/1/0431/3461/5708/files/tutedeno.pdf
- https://cdn.shopify.com/s/files/1/0434/3745/7574/files/zowopisagava.pdf
- https://cdn.shopify.com/s/files/1/0433/4115/2421/files/61355062906.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_off00007587.bin73a9564893f7d5a1306fbdd467f16ad59839fe8485f39e8af0251c9dac1ec49e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7587 | 5384 bytes |
font_01_sfnt_off000087dc.bin62ed17866c28f5448e991caacba2c185e48e436b2f1dc080a39a27064572daf0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87DC | 10656 bytes |
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