MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The embedded document body text, though garbled, contains a URL that points to a Spanish language document about verb tenses, which is likely a lure. The primary function appears to be directing users to a vast collection of external PDF files hosted across numerous domains, potentially for SEO spam or to 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://hobbyinspirasjon.no/uploads/1/3/0/4/130436054/130436054.html#todos+los+tiempos+verbales+espa%C3%B1ol PDF link annotation
- http://goldendoodlefun.com/uploads/1/3/0/6/130604421/10af11a4df98.pdfIn PDF document text
- http://christeymader.com/uploads/1/3/0/5/130539035/wuzeribadame-nedoduvibu-podudinumudine.pdfIn PDF document text
- http://oasishospitalphysiotherapy.org/uploads/1/3/1/4/131438405/siwezuj_nokukuf_gelus.pdfIn PDF document text
- http://ucmchurch.com/uploads/1/3/0/5/130588393/bupodikexawajesebuf.pdfIn PDF document text
- http://gwo-international.org/uploads/1/3/0/5/130542964/lijumoduxef_kivapezowe_jegabo_gokafobap.pdfIn PDF document text
- http://esthetiqueandrina.ca/uploads/1/3/0/5/130589338/3155403.pdfIn PDF document text
- http://antelope3.com/uploads/1/3/1/4/131483488/kavepuli.pdfIn PDF document text
- http://logisticsunitedinc.com/uploads/1/3/0/7/130775851/japudezipex-domaragonivu-gunolu.pdfIn PDF document text
- http://heightscornerrestaurant.com/uploads/1/3/0/5/130541073/5616209.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008d22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8D22 | 9448 bytes |
SHA-256: df21f1da8029c469f2e79536573dd7faa1cfbac180cbc15aa51e4954afb72e26 |
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font_01_sfnt_off0000aeff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEFF | 2000 bytes |
SHA-256: a1600c79331cba21b3b4a1f056a9d989f02b1280d9db796053b5096bff0b23f3 |
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