Overview
overview
3Static
static
3Koh-main/C...ild.sh
ubuntu-18.04-amd64
1Koh-main/C...ild.sh
debian-9-armhf
1Koh-main/C...ild.sh
debian-9-mips
1Koh-main/C...ild.sh
debian-9-mipsel
1Koh-main/K...ure.js
windows7-x64
1Koh-main/K...ure.js
windows10-2004-x64
1Koh-main/Koh/Creds.js
windows7-x64
1Koh-main/Koh/Creds.js
windows10-2004-x64
1Koh-main/Koh/Find.js
windows7-x64
1Koh-main/Koh/Find.js
windows10-2004-x64
1Koh-main/K...ers.js
windows7-x64
1Koh-main/K...ers.js
windows10-2004-x64
1Koh-main/Koh/Pipe.js
windows7-x64
1Koh-main/Koh/Pipe.js
windows10-2004-x64
1Koh-main/K...ram.js
windows7-x64
1Koh-main/K...ram.js
windows10-2004-x64
1Koh-main/K...fer.js
windows7-x64
1Koh-main/K...fer.js
windows10-2004-x64
1Koh-main/K...esc.js
windows7-x64
1Koh-main/K...esc.js
windows10-2004-x64
1Koh-main/Koh/app.xml
windows7-x64
1Koh-main/Koh/app.xml
windows10-2004-x64
1Koh-main/M...ut.exe
windows7-x64
1Koh-main/M...ut.exe
windows10-2004-x64
1Static task
static1
Behavioral task
behavioral1
Sample
Koh-main/Clients/BOF/build.sh
Resource
ubuntu1804-amd64-20221111-en
Behavioral task
behavioral2
Sample
Koh-main/Clients/BOF/build.sh
Resource
debian9-armhf-20221125-en
Behavioral task
behavioral3
Sample
Koh-main/Clients/BOF/build.sh
Resource
debian9-mipsbe-en-20211208
Behavioral task
behavioral4
Sample
Koh-main/Clients/BOF/build.sh
Resource
debian9-mipsel-20221125-en
Behavioral task
behavioral5
Sample
Koh-main/Koh/Capture.js
Resource
win7-20230220-en
Behavioral task
behavioral6
Sample
Koh-main/Koh/Capture.js
Resource
win10v2004-20230220-en
Behavioral task
behavioral7
Sample
Koh-main/Koh/Creds.js
Resource
win7-20230220-en
Behavioral task
behavioral8
Sample
Koh-main/Koh/Creds.js
Resource
win10v2004-20230220-en
Behavioral task
behavioral9
Sample
Koh-main/Koh/Find.js
Resource
win7-20230220-en
Behavioral task
behavioral10
Sample
Koh-main/Koh/Find.js
Resource
win10v2004-20230221-en
Behavioral task
behavioral11
Sample
Koh-main/Koh/Helpers.js
Resource
win7-20230220-en
Behavioral task
behavioral12
Sample
Koh-main/Koh/Helpers.js
Resource
win10v2004-20230220-en
Behavioral task
behavioral13
Sample
Koh-main/Koh/Pipe.js
Resource
win7-20230220-en
Behavioral task
behavioral14
Sample
Koh-main/Koh/Pipe.js
Resource
win10v2004-20230220-en
Behavioral task
behavioral15
Sample
Koh-main/Koh/Program.js
Resource
win7-20230220-en
Behavioral task
behavioral16
Sample
Koh-main/Koh/Program.js
Resource
win10v2004-20230221-en
Behavioral task
behavioral17
Sample
Koh-main/Koh/SecBuffer.js
Resource
win7-20230220-en
Behavioral task
behavioral18
Sample
Koh-main/Koh/SecBuffer.js
Resource
win10v2004-20230220-en
Behavioral task
behavioral19
Sample
Koh-main/Koh/SecBufferDesc.js
Resource
win7-20230220-en
Behavioral task
behavioral20
Sample
Koh-main/Koh/SecBufferDesc.js
Resource
win10v2004-20230220-en
Behavioral task
behavioral21
Sample
Koh-main/Koh/app.xml
Resource
win7-20230220-en
Behavioral task
behavioral22
Sample
Koh-main/Koh/app.xml
Resource
win10v2004-20230221-en
Behavioral task
behavioral23
Sample
Koh-main/Misc/donut.exe
Resource
win7-20230220-en
Behavioral task
behavioral24
Sample
Koh-main/Misc/donut.exe
Resource
win10v2004-20230220-en
General
-
Target
Koh-main.zip
-
Size
143KB
-
MD5
3f8dcb82d32f3b0c4449b47a99dcfd03
-
SHA1
084056aa1f0ee98d39bf8687bf0bd0e161731b09
-
SHA256
d2fdc4144c99db7bb217a443166c1c23ea6dc82dba48e6859bd5997e86631cbe
-
SHA512
f17c08cf7cbb6b06ab2b748dd13a8743cd0bb681a093de2cba6b0db11f42b23864434b4f13dedf3065370285e4fb262a14a3467d97b43dbb658d8e2e57b518f4
-
SSDEEP
3072:FoE3BRhKWkT8iiHkbIs/rv3AZYHWcMAxHD6vOSM9u0e:FDBLKWkhnbIs/7AqHWmOvBMMR
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Koh-main/Misc/donut.exe
Files
-
Koh-main.zip.zip
Password: infected
-
Koh-main/.gitignore
-
Koh-main/CHANGELOG.md
-
Koh-main/Clients/BOF/KohClient.c
-
Koh-main/Clients/BOF/KohClient.cna
-
Koh-main/Clients/BOF/KohClient.h
-
Koh-main/Clients/BOF/beacon.h
-
Koh-main/Clients/BOF/build.sh.sh linux
-
Koh-main/Koh.sln
-
Koh-main/Koh.yar
-
Koh-main/Koh/Capture.cs.js
-
Koh-main/Koh/Creds.cs.js
-
Koh-main/Koh/Find.cs.js
-
Koh-main/Koh/Helpers.cs.js
-
Koh-main/Koh/Interop.cs
-
Koh-main/Koh/Koh.csproj
-
Koh-main/Koh/LUID.cs
-
Koh-main/Koh/Pipe.cs.js
-
Koh-main/Koh/Program.cs.js
-
Koh-main/Koh/Properties/AssemblyInfo.cs
-
Koh-main/Koh/SecBuffer.cs.js
-
Koh-main/Koh/SecBufferDesc.cs.js
-
Koh-main/Koh/app.config.xml
-
Koh-main/LICENSE
-
Koh-main/Misc/Donut.license
-
Koh-main/Misc/donut.exe.exe windows x64
Password: infected
4970aa163a1343dca70c14d7acb4eef5
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
advapi32
CryptReleaseContext
CryptGenRandom
CryptAcquireContextA
user32
SetClipboardData
CloseClipboard
OpenClipboard
EmptyClipboard
kernel32
WriteConsoleW
HeapReAlloc
HeapSize
GetTimeZoneInformation
FlushFileBuffers
CloseHandle
MapViewOfFile
UnmapViewOfFile
GetModuleHandleA
GetProcAddress
CreateFileMappingA
GlobalAlloc
GlobalLock
GlobalFree
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
ReadConsoleW
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
RaiseException
ExitProcess
GetModuleHandleExW
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
SetStdHandle
GetStdHandle
WriteFile
GetModuleFileNameW
GetCommandLineA
GetCommandLineW
HeapAlloc
HeapFree
CompareStringW
LCMapStringW
GetConsoleCP
GetConsoleMode
GetFileSizeEx
SetFilePointerEx
GetCurrentDirectoryW
GetFullPathNameW
MultiByteToWideChar
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
WideCharToMultiByte
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
GetStringTypeW
GetProcessHeap
SetEndOfFile
ReadFile
RtlUnwind
Sections
.text Size: 111KB - Virtual size: 110KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 41KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 30KB - Virtual size: 34KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 148B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 10KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
Koh-main/README.md