Behavioral task
behavioral1
Sample
Lockbit3.Builder.Malware.rar
Resource
win10v2004-20241007-en
General
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Target
Lockbit3.Builder.Malware.rar
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Size
168KB
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MD5
c9d4d90dfb45736666cb5e1e01c4b29f
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SHA1
edd35479b1d1ebaabd42e0c596cf3596c2078a87
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SHA256
73361db30960d95bf9e4ad4ea2f0585fd4d3e81fa9b5d5e8441f84947e610748
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SHA512
53d04da780ec3af1bf4963de5df07f82d5fa9d77337b0d2d41c809c55c91c0a1547678dc591391abd4525122f3ebd1b85df1533d50c56c325c94e80503af6a04
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SSDEEP
3072:7NYcIVnrfkcvrXFG1o3QQpC1SxQtrN7qsXQZU8ihgd33fG+j3jQfdjEGaN0Wynf0:7AVnjPvh2yQQ8pt2U8ihQ3++j38fd5h8
Malware Config
Extracted
blackmatter
65.239
Signatures
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Blackmatter family
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Lockbit family
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Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
resource yara_rule static1/unpack001/Lockbit 3 Builder/builder.exe family_lockbit -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Lockbit 3 Builder/builder.exe unpack001/Lockbit 3 Builder/keygen.exe
Files
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Lockbit3.Builder.Malware.rar.rar
Password: 123
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Lockbit 3 Builder/Build.bat
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Lockbit 3 Builder/builder.exe.exe windows:5 windows x86 arch:x86
Password: 123
d2e26e45dcb84f1062f90f29a9cf0faa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
user32
MessageBoxW
kernel32
LoadResource
WriteFile
CreateFileW
ExitProcess
FindResourceW
GetCommandLineW
GetFileSize
GetModuleHandleW
GlobalFree
SizeofResource
LockResource
ReadFile
shell32
CommandLineToArgvW
msvcrt
_wcsicmp
memcpy
memset
sprintf
strchr
strcpy
strlen
strstr
wcscat
wcscpy
wcslen
wcsrchr
localeconv
_stricmp
_strcmpi
tolower
realloc
malloc
free
strtod
strncmp
imagehlp
CheckSumMappedFile
ntdll
RtlFreeHeap
RtlAllocateHeap
NtClose
RtlImageNtHeader
Sections
.text Size: 20KB - Virtual size: 19KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 439KB - Virtual size: 438KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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Lockbit 3 Builder/config.json
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Lockbit 3 Builder/keygen.exe.exe windows:5 windows x86 arch:x86
Password: 123
73eeda700d0a0376845c61c44155f4a8
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
user32
wsprintfA
kernel32
GetCurrentDirectoryW
WriteFile
CloseHandle
CreateFileW
ExitProcess
GetCommandLineW
GlobalFree
SetCurrentDirectoryW
shell32
CommandLineToArgvW
msvcrt
_wcsicmp
memcpy
memset
free
fputc
exit
calloc
Sections
.text Size: 26KB - Virtual size: 25KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE