CircleM[.]exe | Triage

Resubmissions

10/01/2024, 07:46

240110-jl9nyscdf8 1

09/01/2024, 07:57

240109-jtkd2aaghk 1

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General

Target

CircleM.exe
Size

5.0MB
MD5

0b93262ffa6c050ed8bcfa0e50c438c0
SHA1

b0a66ba973005129b959c2563822af44550cb6ff
SHA256

cd6b8e77951b7ad701ba1329eb4102f2c771d1ef4ee5e4f2f4420791cfd9b7bb
SHA512

3a0d29bcae683edc2f74dbf013c3980827025e6816c5a9a242d211b4b10bcd159cf3f4a1da9e3794f0ab8cef2167bdd2c9cf1065550d8c1abe3590c9d29d6e82
SSDEEP

6144:yBxj7Xb7X/slvPXIbPfgPolLVLPbrhmFD3hmt+dR:yBxjX7kXew0LV493hpX

Score

1^/10

Malware Config

Signatures

Files

CircleM.exe
.exe windows:6 windows x64 arch:x64

6e68f83832c25300ed74ec7021b456ca

Code Sign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

06:41:03:52:0c:cb:5a:47:54:14:83:d8:17:ed:b6:f4
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

06/10/2022, 00:00

Not After

15/10/2024, 23:59

Subject

CN=TILON Co.\,Ltd.,O=TILON Co.\,Ltd.,L=Gangseo-gu,ST=Seoul,C=KR

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

d8:86:03:2b:74:9b:ce:3e:a6:8e:1f:78:af:b3:87:0b:ef:7b:e3:89:3f:12:74:80:e5:a6:f5:b4:e0:c4:73:76
Signer

Actual PE Digest

d8:86:03:2b:74:9b:ce:3e:a6:8e:1f:78:af:b3:87:0b:ef:7b:e3:89:3f:12:74:80:e5:a6:f5:b4:e0:c4:73:76

Digest Algorithm

sha256

PE Digest Matches

true

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

HeapAlloc
DeleteCriticalSection
GetProcessHeap
GetLogicalDrives
GetModuleHandleA
LocalFileTimeToFileTime
LoadLibraryA
GetLogicalDriveStringsA
GetProcAddress
GetSystemTime
VirtualFree
VirtualAlloc
GetDriveTypeA
GetSystemTimeAsFileTime
CreateThread
CreateFileW
WriteConsoleW
SetFilePointerEx
RaiseException
GetConsoleCP
FlushFileBuffers
GetStringTypeW
SetStdHandle
FindNextFileA
FindFirstFileExA
FindClose
GetCommandLineW
GetCommandLineA
GetFileType
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
IsValidCodePage
HeapReAlloc
FileTimeToSystemTime
GetLastError
GetTempPathA
HeapSize
WaitForSingleObject
GetVolumeInformationA
InitializeCriticalSectionAndSpinCount
GetConsoleMode
CloseHandle
EnterCriticalSection
LeaveCriticalSection
CreateEventW
GetModuleHandleW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
OutputDebugStringW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
RtlUnwindEx
GetModuleFileNameW
RtlPcToFileHeader
SetLastError
GetCurrentProcess
ExitProcess
TerminateProcess
GetModuleHandleExW
MultiByteToWideChar
WideCharToMultiByte
GetStdHandle
WriteFile
GetModuleFileNameA
GetACP
LCMapStringW
HeapFree

user32

GetWindowThreadProcessId
GetWindowRect
GetWindowTextA
DrawCaption
KillTimer
LoadImageA
GetWindow
DispatchMessageA
LoadCursorFromFileA
LoadCursorA
GetDC
FillRect
GetClassNameA
GetActiveWindow
GetDoubleClickTime
GetForegroundWindow
TranslateMessage
PeekMessageA
SetRect
GetParent
ReleaseDC
GetCursor
SetTimer
SetWindowLongA
ChangeDisplaySettingsA

gdi32

GetFontLanguageInfo
GetFontUnicodeRanges
GetSystemPaletteEntries
GetDeviceCaps
GetFontData
CreateDCA
CreatePen

advapi32

SystemFunction036

Sections

.text
Size: 57KB - Virtual size: 57KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 79KB - Virtual size: 78KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

6e68f83832c25300ed74ec7021b456ca

Code Sign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

06:41:03:52:0c:cb:5a:47:54:14:83:d8:17:ed:b6:f4Certificate

Extended Key Usages

Key Usages

d8:86:03:2b:74:9b:ce:3e:a6:8e:1f:78:af:b3:87:0b:ef:7b:e3:89:3f:12:74:80:e5:a6:f5:b4:e0:c4:73:76Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

Sections

.text Size: 57KB - Virtual size: 57KB

.rdata Size: 79KB - Virtual size: 78KB

.data Size: 6KB - Virtual size: 10KB

.pdata Size: 4KB - Virtual size: 4KB

.tls Size: 512B - Virtual size: 9B

.reloc Size: 2KB - Virtual size: 1KB

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

06:41:03:52:0c:cb:5a:47:54:14:83:d8:17:ed:b6:f4
Certificate

d8:86:03:2b:74:9b:ce:3e:a6:8e:1f:78:af:b3:87:0b:ef:7b:e3:89:3f:12:74:80:e5:a6:f5:b4:e0:c4:73:76
Signer

.text
Size: 57KB - Virtual size: 57KB

.rdata
Size: 79KB - Virtual size: 78KB

.data
Size: 6KB - Virtual size: 10KB

.pdata
Size: 4KB - Virtual size: 4KB

.tls
Size: 512B - Virtual size: 9B

.reloc
Size: 2KB - Virtual size: 1KB