Behavioral task
behavioral1
Sample
k1 chair.exe
Resource
win7-20240903-en
General
-
Target
k1 chair.exe
-
Size
6.4MB
-
MD5
c8d4dfb95bf9749cbe1a901c865de44f
-
SHA1
b172ccc95a1d4665932311f5e190687ec27be135
-
SHA256
4f0fe62075f4a1e5a3d0d072a07169ea16199bcace49c0d3f755d02b70c77b39
-
SHA512
4ab783fe7ce30faf0fa709a985e0a85cf8ad34f37055f1a846a9c13434a9359345db065b442fda421e9cd571d05d008bca21f1e93037c4aa04c0243fd9465f46
-
SSDEEP
98304:opAaoyM60VWXJQlfBSDKgVHRm1j1I35AhPDkIwBpNU6ZsuQw+F2EM5vLLymu9nl:o/M6AWZp0j23Sh2BpNUZo+8zBLLFqn
Malware Config
Signatures
-
resource yara_rule sample vmprotect -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource k1 chair.exe
Files
-
k1 chair.exe.exe windows:6 windows x64 arch:x64
9663359ecdfe0d03818162253fbe26db
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
CreateThread
FlsSetValue
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress
user32
MessageBoxA
GetProcessWindowStation
GetProcessWindowStation
GetUserObjectInformationW
advapi32
CryptEncrypt
shell32
ShellExecuteA
msvcp140
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
ntdll
RtlLookupFunctionEntry
normaliz
IdnToAscii
wldap32
ord33
crypt32
CertFreeCertificateChainEngine
ws2_32
ntohs
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140
__std_terminate
vcruntime140_1
__CxxFrameHandler4
api-ms-win-crt-runtime-l1-1-0
_invalid_parameter_noinfo_noreturn
api-ms-win-crt-string-l1-1-0
strncmp
api-ms-win-crt-heap-l1-1-0
free
api-ms-win-crt-stdio-l1-1-0
__p__commode
api-ms-win-crt-filesystem-l1-1-0
remove
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-time-l1-1-0
_localtime64
api-ms-win-crt-convert-l1-1-0
strtol
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
api-ms-win-crt-math-l1-1-0
__setusermatherr
wtsapi32
WTSSendMessageW
Sections
.text Size: - Virtual size: 479KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 112KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 279KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: - Virtual size: 19KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.vmp0 Size: - Virtual size: 4.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.vmp1 Size: 6.4MB - Virtual size: 6.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 180B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ