General
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Target
dcef208fcdac3345c6899a478d16980f
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Size
416KB
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Sample
240325-b5rngsce96
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MD5
dcef208fcdac3345c6899a478d16980f
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SHA1
fd127c6ecaee57972b7acc3b8e4a2d3b25f928e0
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SHA256
824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc
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SHA512
28e403a6d66895a2461828f49acb2862602e6be94405657bee0aec5d35d86dd83713c4cd1f33d28b94fed6546633683f9ffa693d37dc94bc862f6584833f9fba
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SSDEEP
6144:iYdiLQNWloaXoLJYksETr0vpvejH6ols25A0LJjI4WHB/N7:BiLQqosgZs+8vejap0LJ6h
Static task
static1
Behavioral task
behavioral1
Sample
dcef208fcdac3345c6899a478d16980f.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
dcef208fcdac3345c6899a478d16980f.exe
Resource
win10v2004-20240226-en
Malware Config
Extracted
C:\$Recycle.Bin\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Extracted
C:\$Recycle.Bin\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
Targets
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Target
dcef208fcdac3345c6899a478d16980f
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Size
416KB
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MD5
dcef208fcdac3345c6899a478d16980f
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SHA1
fd127c6ecaee57972b7acc3b8e4a2d3b25f928e0
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SHA256
824a76c39895bc3ad4f5dfc27fc3ac80d26514118c4669505a1f0cfdc8fdbcdc
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SHA512
28e403a6d66895a2461828f49acb2862602e6be94405657bee0aec5d35d86dd83713c4cd1f33d28b94fed6546633683f9ffa693d37dc94bc862f6584833f9fba
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SSDEEP
6144:iYdiLQNWloaXoLJYksETr0vpvejH6ols25A0LJjI4WHB/N7:BiLQqosgZs+8vejap0LJ6h
Score10/10-
Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
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Detects Zeppelin payload
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Zeppelin Ransomware
Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.
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Renames multiple (7326) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
2File Deletion
2Modify Registry
2Subvert Trust Controls
1Install Root Certificate
1