Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
General
-
Target
lkb99.zip
-
Size
219KB
-
Sample
240123-w58bfsfbd5
-
MD5
93501d735c2890d09756f59bc216dc48
-
SHA1
51233abb6261ac8a5d99bb7cd66ff2e4082c4aef
-
SHA256
0869bbfc5a182cf953eabef4dfa0ea2038cdb7eed89b07e207e3739609993067
-
SHA512
aefa3f01841ad12d5ad1eb42ac40a9c173faa761d5f627955738e959f9d5ce4cbbde0333235f97a5c1e6405f9990fdee14e8a4e86e5afa92bcb40e5e4b9fed41
-
SSDEEP
6144:+zbP67rE6kBKOOtSvmzMRxbplzNOxcthBE6OhxL:+n1BMO5MSX/thB2hxL
Static task
static1
Behavioral task
behavioral1
Sample
lkb99.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
lkb99.exe
Resource
win10-20231220-en
Behavioral task
behavioral3
Sample
lkb99.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
lkb99.exe
Resource
win11-20231215-en
Malware Config
Extracted
C:\Program Files\Java\jdk-1.8\Restore-My-Files.txt
lockbit
http://lockbit-decryptor.top/?8841DD9B0AC925FFBCB49EE850ED14E2
http://lockbitks2tvnmwk.onion/?8841DD9B0AC925FFBCB49EE850ED14E2
Extracted
C:\Program Files\dotnet\Restore-My-Files.txt
lockbit
http://lockbit-decryptor.top/?8841DD9B0AC925FFB94E28A3BAD76C80
http://lockbitks2tvnmwk.onion/?8841DD9B0AC925FFB94E28A3BAD76C80
Extracted
C:\Program Files\dotnet\Restore-My-Files.txt
lockbit
http://lockbit-decryptor.top/?8841DD9B0AC925FFEBDF24347999C060
http://lockbitks2tvnmwk.onion/?8841DD9B0AC925FFEBDF24347999C060
Targets
-
-
Target
lkb99.exe
-
Size
552KB
-
MD5
b4d493ac4428abf9aed55dc444d2073f
-
SHA1
6948fd344891e36799a80d6828e42b09ca553b7a
-
SHA256
41c611528db77b92eb0e0602215e63e6c2d7efbf1a11f980c514eb31ce9266c3
-
SHA512
c4ab19333856e0c8f6a842c64967a9c1fc9ae3a24efc067b0cfe764ef4c8c97236a8afff64ebc983cade3e2775c93a3a35316bea9a6c9b1d4ecfa0acda224e75
-
SSDEEP
6144:BXfHNiU8UC0QPfSfCSGSmBzpmlfdJqvAVB0koqAznCFJ+QSu5ClK0glKlriFT+s0:BX1iUhlQP6qX/qUnDC8ZC/wz
Score10/10-
Modifies boot configuration data using bcdedit
-
Renames multiple (57) 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.
-
Adds Run key to start application
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Suspicious use of NtSetInformationThreadHideFromDebugger
-