General
- Target lk.exe
- Size 145KB
- Sample260902-3cprzatgnf
- SHA256 ebd465cbb6b7718f33aac20528ffa75ae4ac433d8ab7c5c7a734c472f1c16a87
- MD5 0ea587f542567d86c44bc93084799bd9
- SHA1 8e6002fa4a8d70b0963fadf442ea2ae7552576f9
- SHA512 f4cf428f2aef42e331e7d9054f5628955cdf5ba347f08569bf21a47dcf974755d56cbbdcad53b86a0dfa8247f7f893bc29f30737439d5c7840d94a9b3640d8f7
- SSDEEP 3072:86glyuxE4GsUPnliByocWep2uFBdZIhdXB:86gDBGpvEByocWenfIh
- TLSH T130E36D11F212D0B3C87718F53736B5B1B39F8E2C19996807EAE80F99BCA48232F55597
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
lk.exe
Resource
win10v2004-20260513-en
30 signatures
150 seconds
Behavioral task
behavioral2
Sample
lk.exe
Resource
win11ltsc2024-20260709-en
23 signatures
150 seconds
Malware Config
Targets
-
- Target lk.exe
- Size 145KB
- SHA256 ebd465cbb6b7718f33aac20528ffa75ae4ac433d8ab7c5c7a734c472f1c16a87
- MD5 0ea587f542567d86c44bc93084799bd9
- SHA1 8e6002fa4a8d70b0963fadf442ea2ae7552576f9
- SHA512 f4cf428f2aef42e331e7d9054f5628955cdf5ba347f08569bf21a47dcf974755d56cbbdcad53b86a0dfa8247f7f893bc29f30737439d5c7840d94a9b3640d8f7
- SSDEEP 3072:86glyuxE4GsUPnliByocWep2uFBdZIhdXB:86gDBGpvEByocWenfIh
- TLSH T130E36D11F212D0B3C87718F53736B5B1B39F8E2C19996807EAE80F99BCA48232F55597
- MD5 SHA1 SHA512 SSDEEP TLSH
Renames multiple (1053) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Deletes itself
Executes dropped EXE
Drops desktop.ini file(s)
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
Drops file in System32 directory
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1