MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=epithelial+tissue+worksheet+answers', suggesting a lure to a malicious site. The presence of many external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.
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.club/wix?keyword=epithelial+tissue+worksheet+answers
- http://files.bhumikafest.com/uploads/1/3/1/4/131454172/e0275.pdf
- http://kirul.truevinelifetab.com/uploads/1/3/0/9/130969754/dodamitibonodo_nisobi_welar_wuleg.pdf
- http://files.herbalmedicinecanada.com/uploads/1/3/1/6/131637279/91c0a542600.pdf
- https://static.usrfiles.com/ugd/9c43ec_8acce02737a147e4b90e0f0d4a717432.pdf
- https://static.usrfiles.com/ugd/b7ab08_b169f5d37f73454b861a792f3cbc3425.pdf
- https://static.usrfiles.com/ugd/d99ef3_34cc6f1dbcf84c228eb9231dbc0d9443.pdf
- https://static.usrfiles.com/ugd/c33f71_837582dbbee14235b11fcf530522d0a5.pdf
- https://static.usrfiles.com/ugd/314c35_68146dd758a14d89ad4c58eaeff7cf1e.pdf
- https://static.usrfiles.com/ugd/41a0b6_26363d9f33b94922be2a47a2d9cc95c0.pdf
- https://static.usrfiles.com/ugd/e5412a_bf06c118d6bc4ff78709a0b909e1f2a7.pdf
- https://static.usrfiles.com/ugd/cec570_29b835fe6c91439aa429dbf0db9ff389.pdf
- https://static.usrfiles.com/ugd/25c42e_90cd5a88fca54a5b9a3b043b7657345e.pdf
- https://cdn.shopify.com/s/files/1/0432/3724/5086/files/tutakitimu.pdf
- https://cdn.shopify.com/s/files/1/0438/2231/7728/files/arrange_numbers_in_ascending_order_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0431/3127/3370/files/xowojom.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_off00008821.bind3ad434b8ce9f509b7fcf7b80f05d23cbc35537ee429c6d52615ad4509305b21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8821 | 5020 bytes |
font_01_sfnt_off00009941.bine7960d9b6ea7465044688e4bfa5f9e3610fe1c7c7e2122d34b495e6e8350d284 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9941 | 10244 bytes |
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