MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
T1059.007 JavaScript
This PDF document exhibits multiple indicators of malicious intent, including a high ML classification score and ClamAV detection as a phishing trojan. It contains a large number of external links, suggesting a link farm, and explicitly instructs the user to use remote support tools and decrypt archives, which is a common tactic to hide malicious payloads. The embedded URLs are likely part of the distribution or command and control infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://kuzutuzo.ru/123?utm_term=bob+omb+winpe PDF link annotation
- http://xrootunited.com/fomerihgoa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450336/normal_5ff374ed22cd2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403684/normal_5fe0c1ec31596.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455659/normal_5fd679b444518.pdfIn PDF document text
- http://ostanni.fun/john_g_lake_books_drive5aywk.pdfIn PDF document text
- http://vanimerukaguto.scienceontheweb.net/free_download_piano_sheet_music_hallelujah.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388421/normal_5fc746d6c524b.pdfIn PDF document text
- http://metryck.info/lagifowunimuvuferizmy8yj.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414174/normal_5ffa0526168b7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369905/normal_60315e5f6cf17.pdfIn PDF document text
- http://zinefikitozozeg.sportsontheweb.net/what_is_the_average_lifetime_earnings_of_a_military_officer.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4368782/normal_5fc816029ab48.pdfIn PDF document text
- http://klyshsheff.xyz/fomowanelijakaluqoozv.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4487007/normal_6005ff3aa54f3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://gipebevu.atwebpages.com/how_to_reset_asus_router_factory_settings.pdfIn PDF document text
- http://zuvuzevo.atwebpages.com/maguw.pdfIn PDF document text
- https://5e3b32e6-a537-4a58-a531-ef303a468713.filesusr.com/ugd/120874_f9f1902d33de406baf9e3b2b44cda472.pdf?index=trueIn PDF document text
- http://bebovufuvuji.myartsonline.com/wanovazukitibolaz.pdfIn PDF document text
- https://ee897e78-a157-4eb5-8a47-d615096087a2.filesusr.com/ugd/113e89_21ce35b25c4b463784ffbd22d96f4f7d.pdf?index=trueIn PDF document text
- https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_e2154e0f4b3f417d9b961e6bd1575f77.pdf?index=trueIn PDF document text
- https://5a20c861-23fd-468b-888e-078c5342874f.filesusr.com/ugd/924841_8b7f18d0ee6048179a2ad6ac8280beea.pdf?index=trueIn 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_off0000f5e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5E7 | 4732 bytes |
SHA-256: e561dfabd422a5587cd2e2dd40f5cff9f5d7ec43cb21714623d6d4b94b61a232 |
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font_01_sfnt_off00010600.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10600 | 11100 bytes |
SHA-256: fdcdaceeba7bf9c0b216d51a1fba1b37957eaf37b86a6ab7cce07c0b7262d2b7 |
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