General
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Target
a_star.exe
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Size
6.0MB
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MD5
dc2395b8e21f5052e9df376240e01dd3
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SHA1
328597f3747537c220c0277b58d53567a616659f
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SHA256
369cbe9ee0fc392e750ed39ceda66f048f401c55adc2173b5c1c8af0d08ecfbb
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SHA512
8f7b07c5b8693c9bc7cec598a538222e889ec254686993ab694e0a584945e11cbbf68d5f3b9fde97d769351430715cb54badb865bd9d0bfc9046c4eb65ce0f65
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SSDEEP
196608:WwL+BrCfuqem7fW54SsyPnym97lcNkiQK1iUYZ:WwL+BrkdXM19Pl
Malware Config
Signatures
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resource yara_rule sample vmprotect -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource a_star.exe
Files
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a_star.exe.exe windows:6 windows x64 arch:x64
27dda9b1fb74ce10e5d2c4afbd66f0aa
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
GetCurrentThreadId
FlsSetValue
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress
user32
GetMonitorInfoA
GetProcessWindowStation
GetProcessWindowStation
GetUserObjectInformationW
gdi32
CreateSolidBrush
advapi32
SetSecurityInfo
shell32
ShellExecuteA
msvcp140
?_Syserror_map@std@@YAPEBDH@Z
ntdll
RtlVirtualUnwind
dbghelp
ImageDirectoryEntryToData
d3d11
D3D11CreateDeviceAndSwapChain
imm32
ImmSetCompositionWindow
d3dcompiler_43
D3DCompile
dwmapi
DwmExtendFrameIntoClientArea
rpcrt4
RpcStringFreeA
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140_1
__CxxFrameHandler4
vcruntime140
memset
api-ms-win-crt-heap-l1-1-0
malloc
api-ms-win-crt-math-l1-1-0
ceilf
api-ms-win-crt-string-l1-1-0
isblank
api-ms-win-crt-runtime-l1-1-0
strerror
api-ms-win-crt-stdio-l1-1-0
_lseeki64
api-ms-win-crt-locale-l1-1-0
localeconv
api-ms-win-crt-time-l1-1-0
_gmtime64
api-ms-win-crt-environment-l1-1-0
getenv
api-ms-win-crt-convert-l1-1-0
strtol
api-ms-win-crt-filesystem-l1-1-0
_unlink
api-ms-win-crt-utility-l1-1-0
qsort
ws2_32
WSAIoctl
normaliz
IdnToAscii
crypt32
CertFreeCertificateContext
wldap32
ord46
wtsapi32
WTSSendMessageW
Sections
.text Size: - Virtual size: 1.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 269KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: - Virtual size: 54KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.vmp0 Size: - Virtual size: 3.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.vmp1 Size: 6.0MB - Virtual size: 6.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 204B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ