MALICIOUS
302
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF contains numerous links to external resources, including a known malicious redirector, and instructs users to disable security software. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the instruction to disable security software suggest an attempt to facilitate the download and execution of a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 8
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://gettraff.ru/aws?utm_term=blacksad+pdf+free In PDF document text
- https://demomejisalazi.weebly.com/uploads/1/3/4/8/134869482/fizez.pdfIn PDF document text
- https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/6a87a6a4a2594.pdfIn PDF document text
- https://jipemovikeral.weebly.com/uploads/1/3/4/0/134012889/pagepa_mezulezerixeli_bofofefugexeb.pdfIn PDF document text
- https://pozosukezogi.weebly.com/uploads/1/3/4/3/134386022/fawidenakuzor-wazosaxojo-takol-wefuzozi.pdfIn macro / runtime command snippet
- https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/8b7ed9afed.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bifadiwuwileji/42902509102.pdfIn PDF document text
- https://s3.amazonaws.com/padadutiseni/towigulizegalererov.pdfIn PDF document text
- https://s3.amazonaws.com/zoromexemuzid/rosesiru.pdfIn PDF document text
- https://s3.amazonaws.com/tobobowu/bicep_barbell_curl_form.pdfIn PDF document text
- https://s3.amazonaws.com/kawotexulozax/asus_x553m_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/320ae1e4-69f1-4d9f-8acb-276859a06f32/hp_probook_4520s_drivers_update.pdfIn PDF document text
- https://s3.amazonaws.com/buwosevax/sebimosezukizajamogol.pdfIn PDF document text
- https://s3.amazonaws.com/wajufifenoxuj/development_economics_todaro.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
- https://s3.amazonaws.com/kawotexulozax/asus_x5In macro / runtime command snippet
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c34b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC34B | 5260 bytes |
SHA-256: 5aca7940c07b6241805c72426c06cb66afc63ff8fd5b7a97c6e30c5635540154 |
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font_01_sfnt_off0000d53a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD53A | 1800 bytes |
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d |
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font_02_sfnt_off0000ddc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDC8 | 10672 bytes |
SHA-256: 91310fd17103feb31c1b67fcbc21e391afe548183875ead0251ea37ae1072346 |
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font_03_sfnt_off00010267.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10267 | 16164 bytes |
SHA-256: 9026f3b3db4823843c0cd60ab9659202f9f06131997374a39278b243e9da0b8e |
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