General
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Target
2024-11-04_3f83ff6ed6c5143c3f5b5d2df211d870_virlock
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Size
197KB
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Sample
241104-bqm2raslhq
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MD5
3f83ff6ed6c5143c3f5b5d2df211d870
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SHA1
a4690dd168ddf64cc0d8668f918c16650e9d8856
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SHA256
db0f5b878e6eb1fdb208a1b3fa600ae21acf085e6192c77cbeb5afcaf0f671f9
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SHA512
48c4ca30e1d5100479974a53c186b70f7c028206430f5b353b112985e625d745a3569d74fc79a98f0775e30c779b989d927332b607aa144b1419e1478686d037
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SSDEEP
3072:x8eCcdYyihtjS7oIVTZMbRbdY7+EkYV/912r/zDI4Bun7uhKD5kY6q4:ieSyihxS7oIsbNO91YL7eKxR
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-04_3f83ff6ed6c5143c3f5b5d2df211d870_virlock.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-04_3f83ff6ed6c5143c3f5b5d2df211d870_virlock.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
2024-11-04_3f83ff6ed6c5143c3f5b5d2df211d870_virlock
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Size
197KB
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MD5
3f83ff6ed6c5143c3f5b5d2df211d870
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SHA1
a4690dd168ddf64cc0d8668f918c16650e9d8856
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SHA256
db0f5b878e6eb1fdb208a1b3fa600ae21acf085e6192c77cbeb5afcaf0f671f9
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SHA512
48c4ca30e1d5100479974a53c186b70f7c028206430f5b353b112985e625d745a3569d74fc79a98f0775e30c779b989d927332b607aa144b1419e1478686d037
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SSDEEP
3072:x8eCcdYyihtjS7oIVTZMbRbdY7+EkYV/912r/zDI4Bun7uhKD5kY6q4:ieSyihxS7oIsbNO91YL7eKxR
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Modifies visibility of file extensions in Explorer
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Renames multiple (57) 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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1