General
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Target
Trojan-Ransom.Win32.Zerber.gdcx-4a8031fc97753e95eb440a1f0f100ddcfbca0bca0bb2271dbc775e129282f304.exe
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Size
148KB
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Sample
230720-23hkxaba64
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MD5
3ce563e899291b59fa8c57c98cad9b4e
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SHA1
7157cc9cf910735727b6601ad4d532cdd0fedc7e
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SHA256
4a8031fc97753e95eb440a1f0f100ddcfbca0bca0bb2271dbc775e129282f304
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SHA512
827dc0e9f9212ec0d4c1e8c7180c33d387548f7de6d0b45a2eef01f22f69ee571d3f2f8b610b8f671f4b25abaa578431ce758a5e41740e7b8c63ca85ef953469
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SSDEEP
3072:/UuL1hDewdkuaLYO/IBK2btFVL1xTevRUyZDDdnN5:/Ue1hyioVgBhnNPK5FZD5n
Static task
static1
Behavioral task
behavioral1
Sample
Trojan-Ransom.Win32.Zerber.gdcx-4a8031fc97753e95eb440a1f0f100ddcfbca0bca0bb2271dbc775e129282f304.exe
Resource
win10v2004-20230703-en
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\szj2bat4.aao\@[email protected]
wannacry
115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn
Targets
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Target
Trojan-Ransom.Win32.Zerber.gdcx-4a8031fc97753e95eb440a1f0f100ddcfbca0bca0bb2271dbc775e129282f304.exe
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Size
148KB
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MD5
3ce563e899291b59fa8c57c98cad9b4e
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SHA1
7157cc9cf910735727b6601ad4d532cdd0fedc7e
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SHA256
4a8031fc97753e95eb440a1f0f100ddcfbca0bca0bb2271dbc775e129282f304
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SHA512
827dc0e9f9212ec0d4c1e8c7180c33d387548f7de6d0b45a2eef01f22f69ee571d3f2f8b610b8f671f4b25abaa578431ce758a5e41740e7b8c63ca85ef953469
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SSDEEP
3072:/UuL1hDewdkuaLYO/IBK2btFVL1xTevRUyZDDdnN5:/Ue1hyioVgBhnNPK5FZD5n
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Modifies WinLogon for persistence
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mimikatz is an open source tool to dump credentials on Windows
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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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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Modifies WinLogon
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
1Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Defense Evasion
File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Modify Registry
7