Loader[.]zip | Triage

Sharing

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General

Target

Loader.zip
Size

96KB
MD5

e23ee8d5e08c22e4e83c3350b53d0261
SHA1

bffd954276a94e355716300c6fc6148cc303f4b2
SHA256

4d50a78f085c7a16ece88a45c56bcce44b15d45051535f386372eafbad82c6f6
SHA512

02050e12f48c5a73a58adf5364a4a3272d59880832d9fbb6a78f4d7070baf3568542946157bd6f2a375dad57a39be01f1a7de715c37d5b8924915f81daae032e
SSDEEP

1536:d4Fl88okq91ttOv21m7X5okO8tXrlLHTmtmbggh1JqXSxEPEQTEhjUtxdjIj:dzkAfta2yO8tXJHTmsLJ9xEc3hyxej

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Digital-Services Loader.dll

Files

Loader.zip
.zip
Digital-Services Loader.dll
.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

PDB Paths

C:\Users\user\Documents\Digital-Services Loader\Digital-Services Loader\obj\Release\net7.0\Digital-Services Loader.pdb

Imports

mscoree

_CorExeMain

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 11KB - Virtual size: 11KB

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
Digital-Services Loader.exe
.exe windows:6 windows x64 arch:x64

72bc4dfff8905033c11dea0c671a7919

Code Sign

22:aa:94:2a:ba:78:b2:b1:f3:ca:d7:96:0d:33:78:80:90:71:49:5a
Certificate

Issuer

CN=Microsoft Windows,O=Microsoft Corporation,L=Washington,ST=Redmond,C=US

Not Before

05/04/2024, 15:24

Not After

12/03/2124, 15:24

Subject

CN=Microsoft Windows,O=Microsoft Corporation,L=Washington,ST=Redmond,C=US

Extended Key Usages

ExtKeyUsageServerAuth
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageKeyEncipherment
KeyUsageCertSign

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

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

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

1a:35:4d:b1:94:98:b4:0b:79:ac:da:5e:dc:68:06:b5:d7:68:f3:e4:a7:62:2d:23:18:b7:b8:c7:b4:95:fc:e3
Signer

Actual PE Digest

1a:35:4d:b1:94:98:b4:0b:79:ac:da:5e:dc:68:06:b5:d7:68:f3:e4:a7:62:2d:23:18:b7:b8:c7:b4:95:fc:e3

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_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

D:\a\_work\1\s\artifacts\obj\win-x64.Release\corehost\apphost\standalone\apphost.pdb

Imports

kernel32

FindNextFileW
GetCurrentProcess
GetModuleHandleExW
GetModuleFileNameW
LeaveCriticalSection
InitializeCriticalSection
GetEnvironmentVariableW
FindClose
MultiByteToWideChar
GetLastError
GetFileAttributesExW
GetFullPathNameW
GetProcAddress
DeleteCriticalSection
WideCharToMultiByte
IsWow64Process
LoadLibraryExW
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
EnterCriticalSection
FindFirstFileExW
OutputDebugStringW
LoadLibraryA
GetModuleHandleW
InitializeCriticalSectionAndSpinCount
SetLastError
RaiseException
RtlPcToFileHeader
RtlUnwindEx
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
LCMapStringEx
DecodePointer
EncodePointer
InitializeCriticalSectionEx
GetStringTypeW

user32

MessageBoxW

shell32

ShellExecuteW

advapi32

RegOpenKeyExW
RegGetValueW
DeregisterEventSource
RegisterEventSourceW
ReportEventW
RegCloseKey

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

_register_onexit_function
_invalid_parameter_noinfo_noreturn
__p___argc
__p___wargv
exit
_initterm_e
_initterm
_get_initial_wide_environment
_initialize_wide_environment
_configure_wide_argv
_c_exit
terminate
_set_app_type
_seh_filter_exe
_cexit
_register_thread_local_exe_atexit_callback
_errno
_exit
abort
_crt_atexit
_initialize_onexit_table

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

__stdio_common_vfwprintf
__stdio_common_vsprintf_s
setvbuf
__stdio_common_vswprintf
_set_fmode
__acrt_iob_func
fputwc
fputws
__stdio_common_vsnwprintf_s
_wfsopen
fflush
__p__commode

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

_set_new_mode
_callnewh
free
malloc
calloc

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

wcsnlen
strcpy_s
_wcsdup
strcspn
wcsncmp
toupper

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

wcstoul
_wtoi

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

__pctype_func
_unlock_locales
_lock_locales
___lc_locale_name_func
___lc_codepage_func
___mb_cur_max_func
_configthreadlocale
setlocale
localeconv

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

__setusermatherr
frexp

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

_gmtime64_s
wcsftime
_time64

Sections

.text
Size: 102KB - Virtual size: 102KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 39KB - Virtual size: 39KB

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: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 840B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Digital-Services Loader.runtimeconfig.json
virustotal.txt

Sharing

General

Malware Config

Signatures

Files

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

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

.rsrc Size: 11KB - Virtual size: 11KB

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

72bc4dfff8905033c11dea0c671a7919

Code Sign

22:aa:94:2a:ba:78:b2:b1:f3:ca:d7:96:0d:33:78:80:90:71:49:5aCertificate

Extended Key Usages

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

1a:35:4d:b1:94:98:b4:0b:79:ac:da:5e:dc:68:06:b5:d7:68:f3:e4:a7:62:2d:23:18:b7:b8:c7:b4:95:fc:e3Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

shell32

advapi32

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

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

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

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

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

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

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

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

Sections

.text Size: 102KB - Virtual size: 102KB

.rdata Size: 39KB - Virtual size: 39KB

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

.pdata Size: 5KB - Virtual size: 5KB

_RDATA Size: 512B - Virtual size: 500B

.reloc Size: 1024B - Virtual size: 840B

.rsrc Size: 11KB - Virtual size: 11KB

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

.rsrc
Size: 11KB - Virtual size: 11KB

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

22:aa:94:2a:ba:78:b2:b1:f3:ca:d7:96:0d:33:78:80:90:71:49:5a
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

1a:35:4d:b1:94:98:b4:0b:79:ac:da:5e:dc:68:06:b5:d7:68:f3:e4:a7:62:2d:23:18:b7:b8:c7:b4:95:fc:e3
Signer

.text
Size: 102KB - Virtual size: 102KB

.rdata
Size: 39KB - Virtual size: 39KB

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

.pdata
Size: 5KB - Virtual size: 5KB

_RDATA
Size: 512B - Virtual size: 500B

.reloc
Size: 1024B - Virtual size: 840B

.rsrc
Size: 11KB - Virtual size: 11KB