MALICIOUS
152
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 external resources, including a known malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.com/wb?keyword=natural%20hazard%20and%20disaster%20management%20for%20class%209%20pdf', suggesting a lure related to academic material. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of malicious redirector infrastructure. 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.com/wb?keyword=natural%20hazard%20and%20disaster%20management%20for%20class%209%20pdf
- http://files.arfstrom.net/uploads/1/3/0/9/130969262/nowifuvav_dobob_xubole.pdf
- http://files.bizeecatz.com.au/uploads/1/3/1/6/131607063/6046243.pdf
- http://files.4izon.com/uploads/1/3/1/4/131407818/folatesomuju.pdf
- https://cdn.shopify.com/s/files/1/0427/8714/3839/files/43491649533.pdf
- https://cdn.shopify.com/s/files/1/0430/0269/1743/files/latutujoxoruxupu.pdf
- https://cdn.shopify.com/s/files/1/0431/3815/4650/files/55540724767.pdf
- https://cdn.shopify.com/s/files/1/0433/6861/1998/files/aaron_burr_sir_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0439/4660/6760/files/how_to_run_first_aid_from_recovery.pdf
- https://cdn.shopify.com/s/files/1/0431/3353/4357/files/vefosusimetadutimadekuju.pdf
- https://cdn.shopify.com/s/files/1/0432/8800/2710/files/6533439853.pdf
- https://cdn.shopify.com/s/files/1/0430/0328/1571/files/endocrine_system_download.pdf
- https://cdn.shopify.com/s/files/1/0432/0228/1633/files/waking_life_full_movie_720p.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007b4b.bind61446f2456de707bb7d10474d9827b582faa02d1c7f8a5e5464ccefab91451c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B4B | 5628 bytes |
font_01_sfnt_off00008e46.bin7f1c9a8910f21dae10239f49144a28f0d763df6f2746a58863a900d7e0c323e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E46 | 10844 bytes |
font_02_sfnt_off0000b356.bin781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB356 | 4324 bytes |
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