MALICIOUS
106
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 as malicious. The 'SE_CLICKFIX' heuristic indicates that the document likely contains social engineering to trick the user into executing a command, possibly to download a second-stage payload. The presence of numerous external URIs, including one pointing to 'nipisod.ru', suggests a potential command and control or download infrastructure. No scripts were extracted, but the overall pattern points to a malicious document designed for user interaction to initiate further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
Heuristics 5
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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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/strik?utm_term=ms+word+and+ms+excel+shortcut+keys+pdf+download PDF link annotation
- http://kewomoza.iblogger.org/how_to_install_safety_first_grow_and_go_3_in_1_car_seat.pdfIn PDF document text
- http://jerimujolegem.medianewsonline.com/rememavuzabasebedox.pdfIn PDF document text
- http://vaxiliwu.medianewsonline.com/howard_leight_impact_sport_bolt_electronic_earmuff.pdfIn PDF document text
- http://bogipeborowe.sportsontheweb.net/the_tigers_daughter_novel.pdfIn PDF document text
- http://tefuvawilutir.mypressonline.com/what_specific_techniques_are_used_in_the_cognitive_behaviour_therapy_cbt_approach.pdfIn PDF document text
- http://katipef.medianewsonline.com/tedokelikife.pdfIn PDF document text
- http://bagomebefekixob.getenjoyment.net/xuzopusavimuwa.pdfIn PDF document text
- http://mufosubofamar.mywebcommunity.org/sasevuzemoki.pdfIn PDF document text
- http://vorakumezaxof.mygamesonline.org/bow_tie_sewing_pattern.pdfIn PDF document text
- http://fejelomixariji.22web.org/87396656568.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fegosuzix.epizy.com/blueant_bluetooth_q2_manual.pdfIn PDF document text
- http://lufixov.epizy.com/engagement_invitation_psd_templates_free.pdfIn PDF document text
- http://gafodix.myartsonline.com/addition_with_regrouping_worksheets_for_grade_3.pdfIn PDF document text
- https://s3.amazonaws.com/fewunadupop/all_souls_trilogy_amazon_kindle.pdfIn PDF document text
- https://s3.amazonaws.com/tapelu/amana_washer_parts_manual.pdfIn PDF document text
- https://s3.amazonaws.com/viboxikuz/iron_cementite_phase_diagram.pdfIn PDF document text
- http://fopovixiwi.epizy.com/31359142146.pdfIn PDF document text
- http://zawemitop.epizy.com/computer_programing_basics.pdfIn PDF document text
- http://fepusum.onlinewebshop.net/pororalixiwelejesa.pdfIn PDF document text
- http://mavowidigusuj.rf.gd/icse_class_10_biology_book_download.pdfIn PDF document text
- http://jiwodasovizo.rf.gd/85767873386.pdfIn PDF document text
- http://momerizimapunu.epizy.com/14973028600.pdfIn PDF document text
- http://gubadif.myartsonline.com/how_to_make_a_negative_person_happy.pdfIn PDF document text
- https://s3.amazonaws.com/dusubonifu/74991579660.pdfIn PDF document text
- http://zezofakarol.myartsonline.com/iar_embedded_workbench_tutorial.pdfIn PDF document text
- http://segalemu.epizy.com/voltage_and_current_divider_problems.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_off0000f570.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF570 | 5728 bytes |
SHA-256: 13cabdd89a2c19eba709ea4848b95c9032e13f00c6ac12df251c6f3db7c9a8d6 |
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font_01_sfnt_off000108ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108EE | 15676 bytes |
SHA-256: 4b867b60a43dbe1a5f22da0698a2efef13850a75c12c7060efe9a0caff1e4e9e |
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