General
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Target
https://mega.nz/file/i6hDRJRQ#JLqR-5qqYJ6OkWcBS57auOl1AL70UrciKMP2WvXbnWg
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Sample
250220-vcwlhssjw4
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://mega.nz/file/i6hDRJRQ#JLqR-5qqYJ6OkWcBS57auOl1AL70UrciKMP2WvXbnWg
Resource
win11-20250217-en
Malware Config
Extracted
quasar
1.4.1
Office04
yivowas-34885.portmap.host:34885
ac051154-f959-41ac-91a5-6b3292bba59e
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encryption_key
8E0B590FBC1D8C9D2BA2768B89828285B1FCE5BC
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install_name
d8fe7b9f.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
javavs
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subdirectory
SubDir
Extracted
C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Targets
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Target
https://mega.nz/file/i6hDRJRQ#JLqR-5qqYJ6OkWcBS57auOl1AL70UrciKMP2WvXbnWg
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Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
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Dharma family
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Quasar family
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Quasar payload
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Wannacry family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (674) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops desktop.ini file(s)
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v15
Execution
Scheduled Task/Job
1Scheduled Task
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
2Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1