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
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Sets desktop wallpaper using registry
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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