MALICIOUS
128
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a malicious redirector link disguised as a download for "Campbell biology 11th edition". This link points to a URL that is known to be associated with malicious redirector infrastructure. The document also contains a large number of external PDF links, many of which point to benign files, suggesting a link farm or SEO poisoning tactic to increase visibility of the malicious link. The presence of a "download button" heuristic further supports the social engineering aspect of this attack.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/wix?keyword=campbell+biology+11th+edition+downlo
- https://static.usrfiles.com/ugd/eb4c03_9254c6bab79d4fd69f333f8f90a5d5d1.pdf
- https://static.usrfiles.com/ugd/b8c837_a33d3cda790a4d43ba951291a5ab1ebf.pdf
- https://static.usrfiles.com/ugd/b8c837_d378c785c3a0437c859699ae2eeee276.pdf
- https://static.usrfiles.com/ugd/b8c837_a9fc9dad33904a0e83b75a1cc6751ed4.pdf
- https://cdn.shopify.com/s/files/1/0431/1344/7584/files/nirakutenanazoburi.pdf
- https://cdn.shopify.com/s/files/1/0429/5966/7363/files/certified_associate_in_project_management_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0428/8030/3270/files/capnodis_tenebrionis.pdf
- https://cdn.shopify.com/s/files/1/0434/1347/1384/files/99396268314.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bewasovenajuwawofitef.pdf
- https://cdn.shopify.com/s/files/1/0437/2047/4779/files/mysql_command_line_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0431/6810/4602/files/xidosonetokoresifi.pdf
- https://cdn.shopify.com/s/files/1/0438/9981/4056/files/bulats_reading_test.pdf
- https://cdn.shopify.com/s/files/1/0434/4355/2416/files/luvanuketutujazipep.pdf
- https://cdn.shopify.com/s/files/1/0435/1849/2824/files/armenian_history.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_off0000832a.bin2866c87713395f3ee8ed3d5d9b42164dfb7fc40073377afc0b57ff109b43bc12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x832A | 5392 bytes |
font_01_sfnt_off00009576.binde8752da257fe913e9efe4ed1336694f89776dc6ae1fd2539cf5c0c83aeabb39 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9576 | 16180 bytes |
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