MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link to 'ttraff.ru' and a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=adrenal+insufficiency+pathophysiology+pdf', indicating a lure to a malicious site disguised as a document about adrenal insufficiency.
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.ru/pify?keyword=adrenal+insufficiency+pathophysiology+pdf
- http://files.architecturaldesigner.world/uploads/1/3/1/3/131384101/6265fedcfcd2d65.pdf
- http://files.inyourpot.com/uploads/1/3/1/6/131606025/ruwurafupu_bifivuxifuxikas_desejaje.pdf
- http://files.c3classes.com/uploads/1/3/2/6/132682861/f5a8ee738.pdf
- https://cdn.shopify.com/s/files/1/0435/0279/6964/files/29108496698.pdf
- https://cdn.shopify.com/s/files/1/0437/6025/5137/files/biriyani_hd_video_song_free.pdf
- https://cdn.shopify.com/s/files/1/0431/0653/3527/files/xokuwizokap.pdf
- https://cdn.shopify.com/s/files/1/0438/8611/7032/files/baldur_s_gate_2_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/9451/5614/files/51687589381.pdf
- https://cdn.shopify.com/s/files/1/0436/9989/6475/files/95285204083.pdf
- https://cdn.shopify.com/s/files/1/0433/0799/1195/files/mufokenitabalolu.pdf
- https://cdn.shopify.com/s/files/1/0437/8345/4872/files/statistical_rethinking_free.pdf
- https://cdn.shopify.com/s/files/1/0430/9765/3397/files/danagosaxofo.pdf
- https://cdn.shopify.com/s/files/1/0431/8085/1364/files/luvumup.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_off0000730a.bin9b0ae9fddb298315fc6d31b9aabad4f36ce25f3460ebad6a59a784fe54c5be1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x730A | 5508 bytes |
font_01_sfnt_off000085c3.bin703b5aa12396a787aecf197aab9d5bdcb5fa503bd601f18ec73b6d344924bb21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85C3 | 14360 bytes |
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