MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malicious content delivery attempt. The heuristic 'PDF_SEO_LINK_FARM' suggests the document contains numerous external links, likely to manipulate search engine results or direct users to malicious sites. The embedded URLs, such as 'https://trafftec.ru/123?utm_term=vertical+columns+on+the+periodic+table+are+called', are key indicators of this activity. No scripts were extracted from this sample, but the structure and URL patterns are consistent with malicious PDF lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 5
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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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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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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://trafftec.ru/123?utm_term=vertical+columns+on+the+periodic+table+are+called
- https://cdn-cms.f-static.net/uploads/4369664/normal_5fa299b32f754.pdf
- https://cdn-cms.f-static.net/uploads/4393632/normal_5f9a31d139ec3.pdf
- https://cdn-cms.f-static.net/uploads/4409246/normal_5fa8476a11520.pdf
- https://cdn-cms.f-static.net/uploads/4387819/normal_5fa70fe42d9c6.pdf
- https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/c45f7c72.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/f0095354-417f-4090-bceb-362c7d6fabf8/binding_of_isaac_afterbirth_plus_switch_update.pdf
- https://uploads.strikinglycdn.com/files/edfc6deb-d8b7-45d4-8d29-7c8906cda908/de_significado_de_inicio.pdf
- https://uploads.strikinglycdn.com/files/8e139364-d57b-46b0-a3b1-ee19aa3115de/baby_lock_5280e_serger_manual.pdf
- https://s3.amazonaws.com/joterige/zapavoxafifujimufapi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b8f2.bin104c2e6180905919ae8328531d629a9601131725c97fdaeb15a7091b6b7b1901 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8F2 | 5300 bytes |
font_01_sfnt_off0000cab3.bin875a511e1ee110312999cf3d7ffb69adeb7f1128a158ec3e79b4168fbad43ce1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAB3 | 9384 bytes |
font_02_sfnt_off0000eab8.bin4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAB8 | 4324 bytes |
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