MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous external links to other PDF documents hosted on disposable domains, indicating a link farm or SEO manipulation scheme. The ClamAV detection and ML classifier also flagged this file as malicious. The embedded URLs suggest a phishing or malware distribution attempt, likely using the PDF as a lure to drive traffic to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.6747
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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=tamil+alphabet+letters+pdf PDF link annotation
- https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/5300225.pdfIn PDF document text
- https://sexabadipeg.weebly.com/uploads/1/3/4/6/134684930/59c73f1.pdfIn PDF document text
- https://topemarepebide.weebly.com/uploads/1/3/4/3/134316461/b303a4.pdfIn PDF document text
- https://kigilejujagenit.weebly.com/uploads/1/3/1/4/131438309/681e6.pdfIn PDF document text
- https://biwomewiwuxe.weebly.com/uploads/1/3/4/1/134131409/tuzubuted.pdfIn PDF document text
- https://resumasilazivo.weebly.com/uploads/1/3/4/5/134509929/jikuzufanopipo.pdfIn PDF document text
- https://jawuvufos.weebly.com/uploads/1/3/4/8/134856807/mobawilolezosufo.pdfIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/leguvefu/92679071025.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/asme_b31._10.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 8
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0001686e.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1686E | 48836 bytes |
SHA-256: f82234cf8fe7777249c60fe5ba9d3e8b5ef52a3b6a3c2801a9d3ee1b7bf54562 |
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font_00_sfnt_off000147c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147C7 | 6444 bytes |
SHA-256: b2eb716f9f1f9b32722e1ea04f9b39d21e8999039eb4c7f2f5ede24790997a64 |
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font_01_sfnt_off000157b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157B7 | 4944 bytes |
SHA-256: 8ebf58b1bcb4f6d1afa0b0c6a6884d075bfb08ecc12daa7a8f66c0d393976ab1 |
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font_03_sfnt_off0001bd93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BD93 | 17480 bytes |
SHA-256: e46e395f3a1ece32837c6115e4fce27a555a37a58b3d5cf426969f249a01ee47 |
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font_04_sfnt_off0001f1a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F1A2 | 16360 bytes |
SHA-256: a177c695115712b0de48f9fdad31280576b6f3a51c8fb190aa9712f165116d91 |
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font_05_sfnt_off00020790.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20790 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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font_06_sfnt_off00021590.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21590 | 2480 bytes |
SHA-256: 2694bcef0afaa4b739418ef25af8c3b4e55e2d06b59fce0e827502d6bffdf3e6 |
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font_07_sfnt_off00021f9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21F9D | 6084 bytes |
SHA-256: 0bbd385887db5074fbd87256d70f98a882c9353f1362fd6c1377f0ce146e0394 |
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