MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs, many of which point to disposable hosting or have unknown reputations. The primary URL, 'https://krisoc.ru/pbw?utm_term=paladin+press+books+pdf+free+download', suggests a lure related to book downloads, potentially to disguise malicious activity. No scripts were extracted, but the structure and URL distribution strongly suggest a phishing or SEO manipulation scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://krisoc.ru/pbw?utm_term=paladin+press+books+pdf+free+download PDF link annotation
- https://cdn-cms.f-static.net/uploads/4405642/normal_6051b6b8414fb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371248/normal_5ffadb9b5f0d0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368266/normal_6019e0a6deb2c.pdfIn PDF document text
- https://lupogupep.weebly.com/uploads/1/3/4/4/134444844/roviwisewenevog_gawakob_vizapoza.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373271/normal_5fdc0cb7d0f37.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380527/normal_603649d95d005.pdfIn PDF document text
- https://voxuvuru.weebly.com/uploads/1/3/5/3/135390020/5893283.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403679/normal_60479af56f8fe.pdfIn PDF document text
- https://guwamiludakubor.weebly.com/uploads/1/3/1/4/131453222/1a746afacb68a7.pdfIn PDF document text
- https://lulipexo.weebly.com/uploads/1/3/5/2/135294167/1ef6585821a5.pdfIn PDF document text
- https://kobokudebixisog.weebly.com/uploads/1/3/5/3/135390699/limibanap-bejisenugum.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453327/normal_5ffbfd72c1228.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413842/normal_5ff4b74ed8279.pdfIn PDF document text
- https://jewaxesototipa.weebly.com/uploads/1/3/5/3/135326518/vonavivegapa-taxemezeru-lasuwamo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/96c88740-b4b7-4a57-a6e8-4568e91ce3bd/how_to_connect_fujitsu_scansnap_ix500_to_computer.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7779d6e4-c4e6-4437-b7f0-dd05e015ccd8/clash_of_clans_bluestacks_hack_cheat_engine_2020.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/24489fb4-5f16-458a-8f65-f1e426c1feb1/47382581186.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0888d64e-5b25-4053-9e8b-41ef1133ddb9/counterfeit_gods_tim_keller_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/396a2f96-c409-4309-adeb-55012ba8a2e1/wrong_turn_7_tamil_dubbed_movie_download_isaimini.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16cd1eb7-d890-4717-a361-e8b096b9eb4a/hp_elitebook_folio_9470m_price_philippines.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8665c625-5925-4e79-aae9-dd121d089b4e/setuzuxe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72a29648-4a5b-4e66-a26e-754de7ae4532/archaeology_essentials_4th_edition_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/794d07bd-3db8-449a-9610-093838dadbfe/clasificacion_de_las_cuentas_de_balance_general.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_off00011cbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CBD | 5332 bytes |
SHA-256: 9619aabf962d47fb95bb12679ef56b53d309b4399403b6b594da4843e1626745 |
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font_01_sfnt_off00012ef7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EF7 | 10144 bytes |
SHA-256: efd26d6765b7bf2b10505e25307e9ef3f5691101b527f9ebca9a7d496751a280 |
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