MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of external links, many of which point to SEO-optimized PDF files on various domains. This pattern is indicative of a link farm or redirection scheme designed to funnel users to malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious attack pattern. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.
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://washingtonstatehealthadvocates.com/uploads/1/3/0/4/130483478/130483478.html#clonixinato+de+lisina+dilucion
- http://lexusconcretellc.com/uploads/1/3/0/7/130776322/gosiso.pdf
- http://triadedistribuidora.com/uploads/1/3/1/3/131384071/kogufamojexo-xidesisubevuse.pdf
- http://theresachurch.yoga/uploads/1/3/1/1/131164112/sotogena_jopuxarulibesok_kevituli.pdf
- http://jp-photopro.com/uploads/1/3/1/3/131383657/jikunofebaderal.pdf
- http://4sapservices.com/uploads/1/3/0/2/130291350/8661895.pdf
- http://storytellersforum.com/uploads/1/3/0/7/130775027/jidinazo_nisisetimamaf.pdf
- http://74-123-73-44.mgwnet.com/uploads/1/3/0/3/130379596/9e66a.pdf
- http://washingtonstatehealthadvocates.com/uploads/1/3/0/4/130483478/terms.html
- http://washingtonstatehealthadvocates.com/uploads/1/3/0/4/130483478/dmca.html
- http://washingtonstatehealthadvocates.com/uploads/1/3/0/4/130483478/policy.html
- https://pepavujewow.files.wordpress.com/2020/05/36944511685.pdf
- https://difomanonis.files.wordpress.com/2020/05/pudunej.pdf
- https://noweposojif.files.wordpress.com/2020/06/vatozejanawakifibodugo.pdf
- https://porugisi.files.wordpress.com/2020/05/74436517788.pdf
- https://fupalowonega.files.wordpress.com/2020/05/5383344235.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_off00008e83.bin1beaa280cacaf9ba6d9fcf1f94b1e5f01d4d3f6e802884e63ee50acb243f7832 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E83 | 11948 bytes |
font_01_sfnt_off0000b4f3.binc988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4F3 | 16204 bytes |
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