MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1105 Ingress Tool Transfer
The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or content distribution tactic. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the sheer volume of external links points to a non-standard document purpose, likely malicious.
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://qartcentre.org/uploads/1/3/1/4/131453520/131453520.html#telugu+alphabets+pdf
- http://janetsparks.com/uploads/1/3/0/8/130814345/nufifoxedivur.pdf
- http://hrcville.com/uploads/1/3/0/2/130272575/rexabaketorixud.pdf
- http://zacharyalpern.com/uploads/1/3/0/5/130588989/videle.pdf
- http://tidalcreations.net/uploads/1/3/0/6/130621840/4974a08b71acbc6.pdf
- http://pcs1.com/uploads/1/3/1/4/131437299/4f707c8c3115.pdf
- http://kellyschwegelconsulting.com/uploads/1/3/0/5/130540897/4ccdc9662691a4.pdf
- http://huoban.heathermcclarriephotography.com/uploads/1/3/0/8/130874017/114165.pdf
- http://webmail.whiterivercoffee.com/uploads/1/3/0/4/130436207/f9b5d3d7f941789.pdf
- http://qartcentre.org/uploads/1/3/1/4/131453520/terms.html
- http://qartcentre.org/uploads/1/3/1/4/131453520/dmca.html
- http://qartcentre.org/uploads/1/3/1/4/131453520/policy.html
- http://fedorahosted.org/lohit
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://mowugowewuv.files.wordpress.com/2020/05/23362526544.pdf
- https://devuvoguwe.files.wordpress.com/2020/06/4289935125.pdf
- https://jeronakuweni.files.wordpress.com/2020/05/85800617012.pdf
- https://zopowozofoje.files.wordpress.com/2020/05/letuloti.pdf
- https://panupobeguki443392900.files.wordpress.com/2020/05/9257234544.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c98.bin0e39ef667860697092cd23a6a9fc8c0c1ac7cfec6a81fe6fa6b76f1c69c6238b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C98 | 3432 bytes |
font_01_sfnt_off0000696d.binf88d2347406fb78f7047ccc5ca0e9a2a7f7656202fd11cf975f3d896ceab6597 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x696D | 10952 bytes |
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