MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, flagged as a link farm and a malicious redirector. The primary malicious URL identified is https://ttraff.club/wix?keyword=investigating+biology+laboratory+manual+8th+edition, which is likely used to redirect users to malicious content. The document body, though heavily obfuscated, contains the title 'Investigating biology laboratory manual 8th edition', suggesting a lure to disguise the malicious links. The ML classifier strongly supports the malicious verdict.
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=investigating+biology+laboratory+manual+8th+edition
- http://files.gumbogiftsandgallery.com/uploads/1/3/0/7/130740513/2916469.pdf
- http://files.southplainswoodturners.org/uploads/1/3/0/9/130969551/nunoxidu_vunurorubu_gunivarapututus.pdf
- http://xoluwupev.millermediafilms.com/uploads/1/3/2/6/132681066/2756201.pdf
- http://warano.draftingsuppliesatjeffersongalleries.com/uploads/1/3/1/0/131070161/sizonivejo.pdf
- http://radajuwi.salinakennelclub.com/uploads/1/3/1/3/131398109/7356405.pdf
- http://files.cincigreyhounds.org/uploads/1/3/0/7/130739615/jafajelu.pdf
- http://dosozogaz.goldaes.com/uploads/1/3/1/3/131378950/606088.pdf
- https://cdn.shopify.com/s/files/1/0434/5652/8537/files/belgium_visa_application_form_qatar.pdf
- https://cdn.shopify.com/s/files/1/0432/5693/8664/files/74571863061.pdf
- https://d011a311-002b-480f-afdc-c86d4d028ca9.filesusr.com/ugd/70e7d4_193afbf8c81c4844a64d4ebd9d65f5c3.pdf?index=true
- https://f17a3399-fbf0-486a-86e6-509e6852ff0a.filesusr.com/ugd/76aeb6_07034d86e9fe4cb9a7104c1693dbd039.pdf?index=true
- 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_off00004951.bin5459e950c7f93edb39e0646eda845e24587a282f995327895b34dde0a9ea4701 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4951 | 5672 bytes |
font_01_sfnt_off00005c72.binfcd68ea4b027cdb5eacee1add993b1b566bd6e46eb22a2b7e0b31e1ba040cef9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C72 | 10536 bytes |
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