General
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Target
2025-05-15_a4fc0a62272348829dc5cca96cb6052e_elex_virlock
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Size
773KB
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Sample
250515-ebptkszjw7
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MD5
a4fc0a62272348829dc5cca96cb6052e
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SHA1
15a61a4dde842a0a209667ed015afce1b1dc4f64
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SHA256
7214620d852c5b9a7f0d1f7874b6ec8e18921286ecd425aad41b52034f143c8b
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SHA512
b1c8c6e4b4c48214d8d0f3a17989525027a015771fd5ce17e38671167b097588215a2d4c902f6b2dbec4c86f08a0a6b33f4786edf9d25e1e8b29778cc2205d5d
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SSDEEP
6144:O1iUw2NqcxdtsvlbJ+oke9e0YkXqmitj+LlMJ:YiUJNqcxdqvlbJzkeFY5mLlMJ
Static task
static1
Behavioral task
behavioral1
Sample
2025-05-15_a4fc0a62272348829dc5cca96cb6052e_elex_virlock.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2025-05-15_a4fc0a62272348829dc5cca96cb6052e_elex_virlock.exe
Resource
win11-20250502-en
Malware Config
Targets
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Target
2025-05-15_a4fc0a62272348829dc5cca96cb6052e_elex_virlock
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Size
773KB
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MD5
a4fc0a62272348829dc5cca96cb6052e
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SHA1
15a61a4dde842a0a209667ed015afce1b1dc4f64
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SHA256
7214620d852c5b9a7f0d1f7874b6ec8e18921286ecd425aad41b52034f143c8b
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SHA512
b1c8c6e4b4c48214d8d0f3a17989525027a015771fd5ce17e38671167b097588215a2d4c902f6b2dbec4c86f08a0a6b33f4786edf9d25e1e8b29778cc2205d5d
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SSDEEP
6144:O1iUw2NqcxdtsvlbJ+oke9e0YkXqmitj+LlMJ:YiUJNqcxdqvlbJzkeFY5mLlMJ
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Modifies visibility of file extensions in Explorer
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UAC bypass
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Renames multiple (88) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Adds Run key to start application
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MITRE ATT&CK Enterprise v16
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