MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of a PDF URI pointing to 'pelibifir.ru' and a heuristic indicating a 'PDF_SEO_LINK_FARM' suggests the document is part of a campaign to drive traffic to malicious sites. The document body, though heavily obfuscated, contains text related to 'media player' and a call-to-action phrase, supporting a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://pelibifir.ru/123?utm_term=media+player+terbaik+di+android PDF link annotation
- https://cdn-cms.f-static.net/uploads/4420230/normal_600aad0a24549.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385863/normal_5fd2511e16a86.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/74341a6a-3271-4eee-891a-8445f8393c2e/rajejiresupokizofedumapu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ca8d354a-ae04-49da-a773-47a9721ba0ba/13525448573.pdfIn PDF document text
- https://s3.amazonaws.com/jikopot/94643044602.pdfIn PDF document text
- https://s3.amazonaws.com/vavejijitatofu/85414968697.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8c5cbdde-6f00-447c-9dfc-1c66e34c7cd0/finigufelesagok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4e3f55ba-f703-4fd4-b875-f5f162193f85/77815433847.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18eb6d52-5a0b-4787-88f7-6a629d3ca875/89433830643.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e25a5326-cd68-43a6-aef0-0603576dad37/possessive_nouns_examples_2nd_grade.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c010c0d-8bcc-4b73-a370-16953537fd20/semigisu.pdfIn PDF document text
- https://9cf5cc10-3c2e-4e30-ae6b-73ed7beed88a.filesusr.com/ugd/5c2b46_5d2bd7b740844d39bce8cb613358e7ad.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f9d8441d-7f6d-4ffe-b417-8755877df6ed/foten.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b87ca78-f15c-4c64-b76c-34cb498d35c1/54976419696.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/70ff6889-5f15-4a34-a5aa-91bc2f7725b9/hp_laserjet_2100tn_driver_windows_7.pdfIn PDF document text
- https://s3.amazonaws.com/gafedupeba/89428383793.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/449ec0ed-67a7-40fc-9940-65a90fa0280a/thermo_king_ts_200_alarm_codes.pdfIn PDF document text
- https://s3.amazonaws.com/taturi/aluminium_sheets_for_sale_brisbane.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a96fde21-34e5-4767-b33e-9421d87bd760/let_it_rain_in_spanish.pdfIn PDF document text
- https://6f12065f-c45d-410c-b048-6ec23fb2b810.filesusr.com/ugd/02ccf7_6ac9e61cd94644de8a4db7e27badf3a1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e9f583d5-7eef-4aee-8e8f-4e2da55f7323/gonimebatagupavaropuvi.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_off0000ead1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAD1 | 5088 bytes |
SHA-256: 061256330becf1556c39bfb05bfbfff1a1b103faca67f22d75c42e46cdeb750d |
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font_01_sfnt_off0000fc3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC3B | 10724 bytes |
SHA-256: 774223103b42629405e0068ee5a956fa282bdf65b9d4fdecf394163e778eff5e |
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