umbral | Napalm Loader[.]zip

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General

Target

Napalm Loader.zip
Size

273KB
MD5

4c4f83efa5526495db4b12f472ccf4d3
SHA1

cf6c1335cc6c9ef74ed02d8ddd646320cb5812a1
SHA256

c27b4cfc3eeafbac10fceb4ccece9eb702bbc83f95868e2d265c3b3e938dea79
SHA512

944278376fc99b473694c8d0c06089c2ff456998f01c750c6e05b7a8f3e64a9d7ed0757bd5d2f23c300293a191f6834abb7ec8120edee307de913d5922d2ebd6
SSDEEP

6144:+UIlaAElE0ZofsDYFr65YvmxswBJAgyBwAsMMEkESD7f:+ULlE0+Z6uvmxnDzONy

Score

10^/10

umbral

Malware Config

Extracted

Family

umbral

https://discord.com/api/webhooks/1216653868696604733/z9ICRqvAltrXdcff42i6jJAKAQieBr2NjOHmdWoYSy9rTdeI8Hmmpg9kxkhm0AkBmQN7

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
static1/unpack001/Napalm Loader.exe	family_umbral

Umbral family
umbral

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Napalm Loader.exe

Files

Napalm Loader.zip
.zip
Napalm Loader.exe
.exe windows:4 windows x86 arch:x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

mscoree

_CorExeMain

Sections

.text
Size: 227KB - Virtual size: 226KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
README.txt
checksum.txt
napalm_hook.dll
.dll windows:6 windows x64 arch:x64

a57f2aa5993346a006190896c1afb4da

Code Sign

43:bb:43:7d:60:98:66:28:6d:d8:39:e1:d0:03:09:f5
Certificate

Issuer

CN=VeriSign Class 3 Code Signing 2010 CA,OU=VeriSign Trust Network+OU=Terms of use at https://www.verisign.com/rpa (c)10,O=VeriSign\, Inc.,C=US

Not Before

02-09-2011 00:00

Not After

01-09-2014 23:59

Subject

CN=NVIDIA Corporation,OU=Digital ID Class 3 - Microsoft Software Validation v2+OU=Software,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

61:19:93:e4:00:00:00:00:00:1c
Certificate

Issuer

CN=Microsoft Code Verification Root,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

22-02-2011 19:25

Not After

22-02-2021 19:35

Subject

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

52:00:e5:aa:25:56:fc:1a:86:ed:96:c9:d4:4b:33:c7
Certificate

Issuer

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

08-02-2010 00:00

Not After

07-02-2020 23:59

Subject

CN=VeriSign Class 3 Code Signing 2010 CA,OU=VeriSign Trust Network+OU=Terms of use at https://www.verisign.com/rpa (c)10,O=VeriSign\, Inc.,C=US

Extended Key Usages

ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

45:03:0f:0f:75:ea:2b:40:4a:34:29:c9:94:64:d0:eb:81:77:91:ca
Signer

Actual PE Digest

45:03:0f:0f:75:ea:2b:40:4a:34:29:c9:94:64:d0:eb:81:77:91:ca

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

PDB Paths

C:\Users\Epexx\Downloads\R6-Chams-with-ingame-menu--master\copy - Copy\x64\Release\d3d11hook.pdb

Imports

kernel32

QueryPerformanceCounter
VirtualFree
VirtualAlloc
GetSystemInfo
VirtualQuery
HeapCreate
VirtualProtect
HeapFree
GetCurrentProcess
Thread32Next
Thread32First
GetCurrentThreadId
SuspendThread
ResumeThread
CreateToolhelp32Snapshot
Sleep
HeapReAlloc
CloseHandle
HeapAlloc
HeapDestroy
GetThreadContext
GetCurrentProcessId
GetModuleHandleW
FlushInstructionCache
SetThreadContext
OpenThread
GlobalUnlock
GetModuleFileNameA
GetModuleHandleA
DisableThreadLibraryCalls
CreateThread
MultiByteToWideChar
InitializeSListHead
GetSystemTimeAsFileTime
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
SetEvent
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
WideCharToMultiByte
GlobalLock
GlobalFree
GetProcAddress
QueryPerformanceFrequency
LoadLibraryA
GlobalAlloc

user32

GetSystemMetrics
GetAsyncKeyState
CallWindowProcA
MessageBoxA
DefWindowProcA
CreateWindowExA
GetWindowLongPtrA
SetWindowLongPtrA
RegisterClassExA
GetKeyState
LoadCursorA
ReleaseCapture
SetCursorPos
GetCursorPos
OpenClipboard
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
GetClientRect
SetCursor
SetCapture
GetForegroundWindow
IsChild
ScreenToClient
ClientToScreen
GetCapture

imm32

ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow

d3dcompiler_47

D3DCompile

msvcp140

??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
??Bid@locale@std@@QEAA_KXZ
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEA_N@Z
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?uncaught_exception@std@@YA_NXZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$ctype@D@std@@2V0locale@2@A
?_Xlength_error@std@@YAXPEBD@Z
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z

d3d11

D3D11CreateDeviceAndSwapChain

vcruntime140_1

__CxxFrameHandler4

vcruntime140

memcpy
__std_type_info_destroy_list
__std_exception_destroy
_CxxThrowException
memset
__C_specific_handler
__current_exception_context
memmove
__std_terminate
memcmp
strstr
memchr
__std_exception_copy
__current_exception

api-ms-win-crt-stdio-l1-1-0

ftell
_get_stream_buffer_pointers
fflush
fclose
_fseeki64
fsetpos
ungetc
fseek
setvbuf
fgetpos
fwrite
fgetc
__stdio_common_vsprintf_s
_wfopen
__stdio_common_vsprintf
fputc
fread
__stdio_common_vsscanf

api-ms-win-crt-string-l1-1-0

strcmp
strcpy_s
strncpy
strcat_s

api-ms-win-crt-utility-l1-1-0

qsort

api-ms-win-crt-heap-l1-1-0

_callnewh
free
malloc

api-ms-win-crt-convert-l1-1-0

atof

api-ms-win-crt-filesystem-l1-1-0

_lock_file
_unlock_file

api-ms-win-crt-runtime-l1-1-0

_cexit
_initterm
_initterm_e
terminate
_seh_filter_dll
_configure_narrow_argv
_crt_atexit
_execute_onexit_table
_register_onexit_function
_initialize_narrow_environment
_initialize_onexit_table
_invalid_parameter_noinfo_noreturn

api-ms-win-crt-math-l1-1-0

acosf
atan2f
ceilf
cosf
fmodf
floorf
powf
sinf
sqrtf
logf

Sections

.text
Size: 263KB - Virtual size: 263KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 56KB - Virtual size: 56KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 312B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 227KB - Virtual size: 226KB

.rsrc Size: 6KB - Virtual size: 5KB

.reloc Size: 512B - Virtual size: 12B

a57f2aa5993346a006190896c1afb4da

Code Sign

43:bb:43:7d:60:98:66:28:6d:d8:39:e1:d0:03:09:f5Certificate

Extended Key Usages

Key Usages

61:19:93:e4:00:00:00:00:00:1cCertificate

Key Usages

52:00:e5:aa:25:56:fc:1a:86:ed:96:c9:d4:4b:33:c7Certificate

Extended Key Usages

Key Usages

45:03:0f:0f:75:ea:2b:40:4a:34:29:c9:94:64:d0:eb:81:77:91:caSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

imm32

d3dcompiler_47

msvcp140

d3d11

vcruntime140_1

vcruntime140

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-math-l1-1-0

Sections

.text Size: 263KB - Virtual size: 263KB

.rdata Size: 56KB - Virtual size: 56KB

.data Size: 2KB - Virtual size: 5KB

.pdata Size: 12KB - Virtual size: 11KB

.rsrc Size: 512B - Virtual size: 480B

.reloc Size: 512B - Virtual size: 312B

.text
Size: 227KB - Virtual size: 226KB

.rsrc
Size: 6KB - Virtual size: 5KB

.reloc
Size: 512B - Virtual size: 12B

43:bb:43:7d:60:98:66:28:6d:d8:39:e1:d0:03:09:f5
Certificate

61:19:93:e4:00:00:00:00:00:1c
Certificate

52:00:e5:aa:25:56:fc:1a:86:ed:96:c9:d4:4b:33:c7
Certificate

45:03:0f:0f:75:ea:2b:40:4a:34:29:c9:94:64:d0:eb:81:77:91:ca
Signer

.text
Size: 263KB - Virtual size: 263KB

.rdata
Size: 56KB - Virtual size: 56KB

.data
Size: 2KB - Virtual size: 5KB

.pdata
Size: 12KB - Virtual size: 11KB

.rsrc
Size: 512B - Virtual size: 480B

.reloc
Size: 512B - Virtual size: 312B