3c7abd7432b74c6f258cf94c6ced8ead24d75fdd98290ac4a8b794839a6971c9 | Triage

Sharing

General

Target

2024-05-21_8f12f6672e3a30bea49592af840f6d93_virlock
Size

117KB
Sample

240521-2ay27acc59
MD5

8f12f6672e3a30bea49592af840f6d93
SHA1

b67d1459060b1d16917d68151e64c4286fbe91c2
SHA256

3c7abd7432b74c6f258cf94c6ced8ead24d75fdd98290ac4a8b794839a6971c9
SHA512

36330d2ec44307aae5db01055d104b4c20525f0a7614aaa9c9bb1233d59e00f36788fd59a224cc154f425239a6bde5e85e4a1fea3230857a75e90fa53d6b2c03
SSDEEP

3072:9X75hp2S75mWgAs68JNkl98pMT8DzZ1y3K9Hk0:N75hDdmDv68JNkl98zykr

Score

10^/10

evasion persistence ransomware spyware stealer trojan

Malware Config

Targets

- Target
  
  2024-05-21_8f12f6672e3a30bea49592af840f6d93_virlock
- Size
  
  117KB
- MD5
  
  8f12f6672e3a30bea49592af840f6d93
- SHA1
  
  b67d1459060b1d16917d68151e64c4286fbe91c2
- SHA256
  
  3c7abd7432b74c6f258cf94c6ced8ead24d75fdd98290ac4a8b794839a6971c9
- SHA512
  
  36330d2ec44307aae5db01055d104b4c20525f0a7614aaa9c9bb1233d59e00f36788fd59a224cc154f425239a6bde5e85e4a1fea3230857a75e90fa53d6b2c03
- SSDEEP
  
  3072:9X75hp2S75mWgAs68JNkl98pMT8DzZ1y3K9Hk0:N75hDdmDv68JNkl98zykr
Score

10^/10

evasion persistence spyware stealer trojan ransomware
- Modifies visibility of file extensions in Explorer
  evasion
- UAC bypass
  evasion trojan
- Renames multiple (85) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Drops file in System32 directory
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Abuse Elevation Control Mechanism

Bypass User Account Control

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

Bypass User Account Control

Hide Artifacts

Hidden Files and Directories

Impair Defenses

Disable or Modify Tools

Modify Registry

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

evasionpersistencespywarestealertrojan

behavioral2

evasionpersistenceransomwarespywarestealertrojan