MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many of which point to domains that appear to be part of a link farm designed to host malicious content. The document body, though heavily obfuscated, contains text related to 'Elementary statistics 9th edition' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://caneshakatreseprenci.com/uploads/1/3/0/2/130289553/130289553.html#elementary+statistics+9th+edition
- http://ocmunc.com/uploads/1/3/0/2/130289733/bd23a9c7b496.pdf
- http://center4centerstage.com/uploads/1/3/0/7/130739951/xelapipozowazidigel.pdf
- http://server-07.gaskeun.com/uploads/1/3/0/7/130775916/625dfcfc4b7d3.pdf
- http://autodiscover.phimi.pt/uploads/1/3/1/4/131438438/goxaloxire-gasaw-rovizefa-pawagunotenuji.pdf
- http://mail.intrinsology.com/uploads/1/3/0/6/130639329/juseketogepog-burutu.pdf
- http://radiomajaja.com/uploads/1/3/1/4/131438761/jepeti.pdf
- http://caneshakatreseprenci.com/uploads/1/3/0/2/130289553/terms.html
- http://caneshakatreseprenci.com/uploads/1/3/0/2/130289553/dmca.html
- http://caneshakatreseprenci.com/uploads/1/3/0/2/130289553/policy.html
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://tefivebofoge.files.wordpress.com/2020/06/59989877172.pdf
- https://xisalab.files.wordpress.com/2020/06/rifol.pdf
- https://bakesigoru.files.wordpress.com/2020/06/fojajo.pdf
- https://pojolukowo.files.wordpress.com/2020/06/6809768429.pdf
- https://kisawas.files.wordpress.com/2020/06/jinerezapilunuje.pdf
- https://zoruwebi.files.wordpress.com/2020/06/4161004945.pdf
- https://narofava.files.wordpress.com/2020/06/1553086319.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/
- http://scripts.sil.org/OFL
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012b24.bin34219290a08ee5ae2ff565029ac558905771ff1705b525edc93246562d8f4047 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B24 | 11492 bytes |
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