MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a link farm designed to redirect users to external sites, one of which is a lure for "free followers apk downloader". The presence of numerous external links and a high ML classification score strongly indicate malicious intent, likely for phishing or malware distribution. ClamAV also detected this as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://golowaki.ru/wix?keyword=free+followers+apk+downloader PDF link annotation
- https://static.s123-cdn-static.com/uploads/4444386/normal_5fd09bc1decae.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446925/normal_5fe46138898b4.pdfIn PDF document text
- https://cdn.sqhk.co/wekajibex/haijhc3/53784140987.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384039/normal_5fdb57df83852.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488135/normal_603b78dade75b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4463791/normal_5fefda64008e4.pdfIn PDF document text
- https://cdn.sqhk.co/kuwusemob/hgjfEja/pdf_annotator_free_portable.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417312/normal_604a126f93a03.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465938/normal_600b112b2c8c8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://a32e93c2-1aa3-4149-af29-aa5d163ab988.filesusr.com/ugd/40336e_7949db08fc3e4dbdae2152aa9eb46bf7.pdf?index=trueIn PDF document text
- https://4cf6c2b4-cd84-4b73-83b1-bf7f441162b2.filesusr.com/ugd/e50c99_f19840b9426047a083ca1fced42134df.pdf?index=trueIn PDF document text
- https://e3055f73-6236-423b-b810-4bc1a15f300f.filesusr.com/ugd/fa12d1_3466b862c2774317a792308b7192f247.pdf?index=trueIn PDF document text
- https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_30df6ff342324d4cb9df572ff5c98879.pdf?index=trueIn PDF document text
- https://054d5c26-596f-48a3-87a7-0fc79031e5db.filesusr.com/ugd/599026_d34170183d84466386cdbfbd86c82af3.pdf?index=trueIn PDF document text
- https://b998fa74-583e-446a-a2a7-67f41460fdb2.filesusr.com/ugd/e081f8_dc584b8cbf35404fb2e9ceb265f3ea2f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/bb559ea9-761e-4ea8-87d4-276254b9aeae/litonuduwawapif.pdfIn PDF document text
- https://3745348a-78a0-42d7-8ff4-af2b45bf5faf.filesusr.com/ugd/02631b_afe55d2ec3a14bd99f8ef34d3d39475a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6f4fddc3-5f68-461a-a2d5-03179e74011a/perfume_the_story_of_a_murderer_2006_sinhala_subtitles.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d52e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD52E | 5144 bytes |
SHA-256: 47ffe0370310ec504f3e56f6df94037437f35189d2f2f58043d9f4d9658ebfe2 |
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font_01_sfnt_off0000e6d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6D6 | 10284 bytes |
SHA-256: ad1a7b79ef655765e95f7be3612777cd5feb734e82f0119b64293725ec853929 |
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