MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, a common technique for link farms and phishing. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. The embedded URLs, such as 'https://trafficel.ru/aws?utm_term=cobol+interview+questions+with+answers', are likely used to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://trafficel.ru/aws?utm_term=cobol+interview+questions+with+answers
- https://cdn-cms.f-static.net/uploads/4426677/normal_5fba7e7baaf42.pdf
- https://cdn-cms.f-static.net/uploads/4388169/normal_5f9461fe47123.pdf
- https://cdn-cms.f-static.net/uploads/4487902/normal_5fb50c0cd6d67.pdf
- https://static.s123-cdn-static.com/uploads/4446649/normal_5fc616a189efb.pdf
- https://cdn-cms.f-static.net/uploads/4383566/normal_5f9975ea9931d.pdf
- https://karezolakep.weebly.com/uploads/1/3/1/3/131398125/afb0c6b4057.pdf
- https://goxapumub.weebly.com/uploads/1/3/4/8/134884232/7c1a34.pdf
- https://static.s123-cdn-static.com/uploads/4414352/normal_5fce8aad44b5e.pdf
- https://zaxizibu.weebly.com/uploads/1/3/4/6/134672664/26c510.pdf
- https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/6305828.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/vuterijoze/62042749464.pdf
- https://s3.amazonaws.com/tekujel/nafofogusatiginakefus.pdf
- https://s3.amazonaws.com/mamukawaxatali/dovowirisagisaj.pdf
- https://s3.amazonaws.com/zuxadol/80102994448.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_off0000dc90.binb3bf1c4c457ffc4e0ecf093f5f2389d08e8c8df761c9dd3baba5b21dfb05062b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC90 | 5096 bytes |
font_01_sfnt_off0000edef.bin7a6b22f98550c319d524d4a02e2df8eebef54f3937cd6111da3af9f82d73134c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDEF | 10112 bytes |
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