General
- Target winbox-4.1-installer.exe
- Size 2.0MB
- Sample260623-pfakkacw7j
- SHA256 c2ff6faa237a4e0391270021b2fd3f11204c8a3b07a67bd8717255bad7654f8b
- MD5 22bb43eb8d526bcfe7444ac89964b446
- SHA1 88bace251c35f3359a234844ad9853d299841917
- SHA512 95203fa2503a413687a3adcfd1de103cde60481679e16917e3cfa0e1e9350b8e01756c472fcdbc428b349758066de24223c0380b616a2f1d92b979616d0d4fda
- SSDEEP 49152:suI5hRc1DYJjNU3id/fPilfX/Dr8iuqjjL:s5/RcpGNUw/fPi5rQSL
- TLSH T1F4A5D03FB28B753EE06E5A367A72E210583B7A6165134C1696F4C88CCF254B01E3E797
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
winbox-4.1-installer.exe
Resource
win10v2004-20260513-en
Malware Config
Targets
-
- Target winbox-4.1-installer.exe
- Size 2.0MB
- SHA256 c2ff6faa237a4e0391270021b2fd3f11204c8a3b07a67bd8717255bad7654f8b
- MD5 22bb43eb8d526bcfe7444ac89964b446
- SHA1 88bace251c35f3359a234844ad9853d299841917
- SHA512 95203fa2503a413687a3adcfd1de103cde60481679e16917e3cfa0e1e9350b8e01756c472fcdbc428b349758066de24223c0380b616a2f1d92b979616d0d4fda
- SSDEEP 49152:suI5hRc1DYJjNU3id/fPilfX/Dr8iuqjjL:s5/RcpGNUw/fPi5rQSL
- TLSH T1F4A5D03FB28B753EE06E5A367A72E210583B7A6165134C1696F4C88CCF254B01E3E797
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Downloads MZ/PE file
-
Uses Session Manager for persistence
Creates Session Manager registry key to run executable early in system boot.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Checks for any installed AV software in registry
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
2Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1