MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a mass of external links, many pointing to seemingly unrelated PDF files, suggesting a link farm or SEO poisoning tactic. One of the embedded links, http://bebekas.net/uploads/1/3/0/3/130323293/130323293.html#nsca+study+guide+free, is presented as a study guide, likely a lure to encourage clicks. The document body contains garbled text but also the URL http://bebekas.net/uploads/1/3/0/3/130323293/130323293.html#nsca+study+guide+free, reinforcing the lure. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://bebekas.net/uploads/1/3/0/3/130323293/130323293.html#nsca+study+guide+free PDF link annotation
- http://historyedit.com/uploads/1/3/0/7/130739080/buluregaweworipar.pdfIn PDF document text
- http://motorcycleriderselitemre.com/uploads/1/3/1/3/131382630/xewavudilo-sebisavi-bobev-rurafeg.pdfIn PDF document text
- http://mta-sts.mail.whiskeywineandweather.com/uploads/1/3/0/9/130969150/kepetovosa.pdfIn PDF document text
- http://6985route21.com/uploads/1/3/1/4/131454791/rasuwujo-zosawominino.pdfIn PDF document text
- http://sciencewithheart.net/uploads/1/3/0/4/130483285/febuwivigitaro.pdfIn PDF document text
- http://seikerinternational.com/uploads/1/3/1/4/131406440/junetixipudekosutabi.pdfIn PDF document text
- http://bebekas.net/uploads/1/3/0/3/130323293/terms.htmlIn PDF document text
- http://bebekas.net/uploads/1/3/0/3/130323293/dmca.htmlIn PDF document text
- http://bebekas.net/uploads/1/3/0/3/130323293/policy.htmlIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://uuuvfcd.sites.looka.com/uploads/1/3/0/2/130274378/c75d01a.pdfIn PDF document text
- https://vuzokeguz.files.wordpress.com/2020/05/62412613113.pdfIn PDF document text
- https://pakuxada.files.wordpress.com/2020/05/diginegalaxerefivalekigew.pdfIn PDF document text
- https://dasawiduved.files.wordpress.com/2020/05/kixenuxajozekuxuvifoxoj.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
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a1f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA1F1 | 11332 bytes |
SHA-256: 18758bb99f9c74b9163fb7ff8511894fb7b14d9f8bf7a7be84b498a5ec79f4b6 |
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font_01_sfnt_off0000c8b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8B9 | 16076 bytes |
SHA-256: b302cc8f5f09e2795de20733a7353734804733c4090a8051bb0a1a62ee9fdce2 |
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