MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious File
The PDF document contains numerous links to external websites, a common tactic for SEO poisoning and directing users to malicious content. The document body text, though partially corrupted, suggests a lure related to a 'Zf gearbox manual download'. The presence of a PDF URI heuristic and a PDF SEO link farm heuristic indicates the document is designed to host or link to a large number of external resources, likely for distributing malware or conducting phishing. The primary IOC is the first external URI found.
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://4wc.undesirable.us/uploads/1/3/1/3/131383266/131383266.html#zf+gearbox+manual+download PDF link annotation
- http://monicavaladezcreative.com/uploads/1/3/1/4/131453274/a18baf234.pdfIn PDF document text
- http://cpanel.sahsg.co.za/uploads/1/3/1/8/131856710/wevug.pdfIn PDF document text
- http://swisshandwerk.com/uploads/1/3/0/6/130621893/2810943.pdfIn PDF document text
- http://dreamcatcherstravel.net/uploads/1/3/0/2/130272921/8060601.pdfIn PDF document text
- http://hawaiieventlighting.com/uploads/1/3/1/4/131437370/lewipazogasi.pdfIn PDF document text
- http://autodiscover.sheimdal.com/uploads/1/3/0/6/130604024/15ec1.pdfIn PDF document text
- http://evaan.org/uploads/1/3/0/7/130775544/zexirumo-tetifagenunub-tebolabuvorolop.pdfIn PDF document text
- http://renewablescopywriter.co.uk/uploads/1/3/1/8/131856042/3518794.pdfIn PDF document text
- http://andrewandsons.org/uploads/1/3/1/3/131381055/5e9e00c.pdfIn PDF document text
- http://elizabethlangs.com/uploads/1/3/1/1/131164392/1716671.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006a20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A20 | 5060 bytes |
SHA-256: a5d6ac40c8b32c7ec8ee255d9956df6e65035801dc1880f1f874006cbb55e49d |
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font_01_sfnt_off00007b4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B4B | 11080 bytes |
SHA-256: 60f5a7f9586a46dc21a5e758332b8ab6a4171f28c2ffcf12b920d6ba3d8c8c5f |
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