MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, includes a reference to 'Psychology applied to work 10th edition' and several URLs, reinforcing the link farm pattern. The ML classifier strongly indicated maliciousness. The primary attack pattern involves directing users to a multitude of external resources, likely to manipulate search engine rankings or distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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External URI info PDF_URIPDF contains an external URL action
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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 http://webdisk.jessicamiyuki.com/uploads/1/3/1/3/131383314/131383314.html#psychology+applied+to+work+10th+edition
- http://essentialamerica.org/uploads/1/3/0/3/130323647/5361628.pdf
- http://usautomation-gates.com/uploads/1/3/0/7/130775727/kamewezof.pdf
- http://indyductrebateclaims.com/uploads/1/3/1/3/131383673/ff417514f.pdf
- http://jameelehshelo.com/uploads/1/3/0/8/130814479/0a8ab7.pdf
- http://mariejoseehull.com/uploads/1/3/0/5/130589186/bajupifin_rarik_zugewulobaxa_zapofezebig.pdf
- http://shoot-around.com/uploads/1/3/0/4/130489157/xitopunisexof.pdf
- http://fashiondollnetwork.com/uploads/1/3/1/1/131164564/6d9b1.pdf
- http://1969karmannghia.com/uploads/1/3/0/5/130588153/lubilozugulose_domezijavesosop.pdf
- http://promotemycandidate.com/uploads/1/3/0/4/130483041/kusidilekizar-janemagoxizu-petavol.pdf
- http://hostmaster.printartadv.com/uploads/1/3/0/9/130970005/d268ff340b3cd11.pdf
- http://ilo.co.nz/uploads/1/3/0/7/130739222/3080396.pdf
- http://webdisk.jessicamiyuki.com/uploads/1/3/1/3/131383314/terms.html
- http://webdisk.jessicamiyuki.com/uploads/1/3/1/3/131383314/dmca.html
- http://webdisk.jessicamiyuki.com/uploads/1/3/1/3/131383314/policy.html
- https://faxozolowof.files.wordpress.com/2020/06/firar.pdf
- https://xetepufupeso.files.wordpress.com/2020/06/pokufelilokukewubagovuj.pdf
- https://vabogojup.files.wordpress.com/2020/06/61155834376.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_off00004fc6.bin36dd5e45279e255ad9d7f4fcb8f5ebf9f67cc8e3d72117b0b5f8e6fa2a13bafb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4FC6 | 10252 bytes |
font_01_sfnt_off00007340.bin3f83bbfb2e03141a9083badfb1da6e2b1773f9aa6b1ed8f30fc2d392a5ee3553 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7340 | 16140 bytes |
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