MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It employs a social engineering lure, instructing the user to install a browser extension or update to view content, a common tactic for malware delivery. The embedded URL, https://nipisod.ru/123?utm_term=default+password+for+xerox+workcentre+5955, is likely part of this malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://nipisod.ru/123?utm_term=default+password+for+xerox+workcentre+5955
- https://cdn-cms.f-static.net/uploads/4465151/normal_60400a70c938d.pdf
- https://cdn.sqhk.co/xekejegixawo/crRuojc/infected_cut_on_leg_pictures.pdf
- http://reduslim-buy.site/ricoh_bay8controller_hp_elitebook_8440p_driverkzr90.pdf
- http://20970907.net/badla_movie_telegram6uhrn.pdf
- https://cdn.sqhk.co/zubavagi/gjSXohb/doruwago.pdf
- http://mignonette.space/romezukajaretesifsrij.pdf
- http://bigswinner.space/563118999304t4yd.pdf
- https://cdn-cms.f-static.net/uploads/4408355/normal_60280ba7e324f.pdf
- https://cdn-cms.f-static.net/uploads/4479679/normal_602f2edf193e4.pdf
- https://buxipowuno.weebly.com/uploads/1/3/4/3/134353207/wumomevoteziw-wupuxofabama.pdf
- https://cdn.sqhk.co/jotepomi/mWaJChe/wixakixomimogemivu.pdf
- https://cdn-cms.f-static.net/uploads/4403959/normal_6033fc6ba55b7.pdf
- https://tonawonigavima.weebly.com/uploads/1/3/5/3/135345065/furubuzifiz_toxarazevox_polujabos_kesobumo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/jifedefujodu/how_to_pair_hearing_aid_to_iphone.pdf
- https://s3.amazonaws.com/rumezo/mathematical_physics_h_k_dass.pdf
- https://s3.amazonaws.com/faduxodiwo/brilliant_answers_to_tough_interview_questions.pdf
- https://s3.amazonaws.com/fajetufekejo/96080921291.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014870.binc4116bfe08520d0d470f432632124762c6debff7d4c43244c1bc4f92d9a3baba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14870 | 5652 bytes |
font_01_sfnt_off00015bdc.bin31eda08ffa413a0ddb6a54eabbe62bd2f8b51ab87d316df89a8cab18969569c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15BDC | 10756 bytes |
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