MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which point to a redirector service. The document body text, though partially corrupted, includes the phrase 'High school chemistry textbook pdf' and the malicious URL 'https://ttraff.ru/pify?keyword=high+school+chemistry+textbook+pdf', indicating a lure to a malicious site. The ML classifier also strongly flagged this PDF as malicious.
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=high+school+chemistry+textbook+pdf
- http://files.genevieveinezmccarthy.com/uploads/1/3/2/6/132681028/sorewuzave.pdf
- http://files.hnetworks.net/uploads/1/3/0/7/130775753/liduberelenipen.pdf
- http://vixowamun.arborcounselors.com/uploads/1/3/2/7/132710712/pimifako-puxikuda.pdf
- https://cdn.shopify.com/s/files/1/0430/3850/7169/files/bepoz.pdf
- https://cdn.shopify.com/s/files/1/0429/0910/6343/files/ayyappan_songs_lyrics_in_tamil_free_download.pdf
- https://cdn.shopify.com/s/files/1/0430/3385/4101/files/bose_quietcomfort_35_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/9635/0624/files/xavajuvuvor.pdf
- https://cdn.shopify.com/s/files/1/0437/8093/1733/files/najikoralip.pdf
- https://cdn.shopify.com/s/files/1/0441/3738/2040/files/rozunibanasofepijuzisakik.pdf
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/kixot.pdf
- https://cdn.shopify.com/s/files/1/0452/2527/9648/files/tutorial_solidworks_indonesia.pdf
- https://cdn.shopify.com/s/files/1/0436/2849/5001/files/sims_3_wii.pdf
- https://cdn.shopify.com/s/files/1/0433/3905/5253/files/3751739347.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_off00006eee.binc64857852f9313ebcdfdd7e288c711ed71458f052a5c4497f67bb339d8cd74da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6EEE | 5696 bytes |
font_01_sfnt_off0000823b.bine2c6f71344dbef8497841af8acdf5e0f2ed6e50685c736002aebd330364babc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x823B | 10060 bytes |
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