MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many pointing to disposable hosting services, and uses a search engine optimization (SEO) link farm technique. The primary URL, 'https://jottigo.ru/strik?utm_term=material+science+and+engineering+an+introduction+solution+manual+pdf', suggests a lure related to academic materials. ClamAV and ML classifiers also flagged this file as malicious, indicating a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 6
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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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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://jottigo.ru/strik?utm_term=material+science+and+engineering+an+introduction+solution+manual+pdf PDF link annotation
- https://xuzonikafu.weebly.com/uploads/1/3/5/3/135351414/d3616f7a.pdfIn PDF document text
- https://samomalekadoj.weebly.com/uploads/1/3/1/4/131438786/zoroveganedajufit.pdfIn PDF document text
- https://sawonelezaxiso.weebly.com/uploads/1/3/4/5/134588179/7373918.pdfIn PDF document text
- https://napujokid.weebly.com/uploads/1/3/5/3/135339673/lumeninirojipe.pdfIn PDF document text
- https://towizitubozabo.weebly.com/uploads/1/3/5/4/135400713/5e1a7063463.pdfIn PDF document text
- https://gerapulopenun.weebly.com/uploads/1/3/4/5/134587141/penujinulozado.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478123/normal_5fea3d66cb76c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465394/normal_5fe828e1354e3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474759/normal_602706b740d2f.pdfIn PDF document text
- https://jebeniwuzopud.weebly.com/uploads/1/3/4/7/134707819/nixojogudinirodo.pdfIn 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://uploads.strikinglycdn.com/files/174ec364-5e2a-483b-8c30-416bdf1b3a82/ruxapitebi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1cde7ee2-1d13-41e2-8369-dd4f06f1dab0/23101551231.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7ac4a7ca-2abb-4130-a7b5-127f1b134dda/xovijuvikuxaposuraz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/101dbe1d-0de3-4b17-9e8c-b0af34b56f49/17772716833.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/228718b8-91d8-4b76-b00a-927ce5b25c69/how_to_set_metric_units_in_autocad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eab999fb-a323-447e-af1f-5b50fde3d66a/how_to_install_kali_linux_2020.2.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cba5ab6b-f32e-4d08-b499-9dd1158b3658/band_baaja_baaraat_mp3_song_downloadming.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e3a049a3-03e9-41b8-9983-598bd1ec5602/79790974059.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f9d9c89a-785d-41ce-aa78-4eaf8d84b8c7/67218165121.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00019b43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19B43 | 5360 bytes |
SHA-256: a7a160f9012e2d154d0c9b5c9b3fd5bf097be1426f3344c4c2c1b2c287ada700 |
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font_01_sfnt_off0001ad5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AD5F | 2848 bytes |
SHA-256: 2c1b3b3fcf11d10f5f842214be9f6cfea64f7ae940b96421e2de868dd2455d41 |
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font_02_sfnt_off0001b8b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B8B3 | 13288 bytes |
SHA-256: eac6da116bc2508278302df99f4c910480100fca725fb3f985fdf670e3238602 |
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font_03_sfnt_off0001e5a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E5A2 | 16560 bytes |
SHA-256: 8e89351c3136fe674d17217551b6f4f5a23688d57888872fde6b42b4066c62b5 |
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font_04_sfnt_off0001fc5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FC5F | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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