07072026_1715_Tax_Notice_92730.exe.iso
- SHA256 e7ced9c4dfcc9653d39941c3ac189e574babe49f4ce50e0c62944d34e71add42
Password
infected
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
Tax_Notice_92730.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
300 seconds
Behavioral task
behavioral2
Sample
Tax_Notice_92730.exe
Resource
win11ltsc2024-20260706-en
windows11-ltsc_2024-x64
11 signatures
300 seconds
Behavioral task
behavioral3
Sample
nvml.dll
Resource
win10v2004-20260513-en
windows10-2004-x64
0 signatures
300 seconds
Behavioral task
behavioral4
Sample
nvml.dll
Resource
win11ltsc2024-20260706-en
windows11-ltsc_2024-x64
0 signatures
300 seconds
General
- Target 07072026_1715_Tax_Notice_92730.exe.iso
- Size 682KB
- Sample260707-vstrvsat91
- SHA256 e7ced9c4dfcc9653d39941c3ac189e574babe49f4ce50e0c62944d34e71add42
- MD5 96c020d7096c0eb114109c03b5f21cce
- SHA1 9ac4811179d01d624efdf2bb0cc03a84cbde6a9b
- SHA512 a799f5965176dc5942f13d7404299d174e37678675af39681332663aa18dfc0fb5fc64573e536103ed83752b5e6e9bd48c657007eee19866b7f311254c440e63
- SSDEEP 12288:QC/Qyk8G5di0euCCVbkM71Nfhu+1mqTnNFm:QCoyTG5di0FCqt5DLTr
- TLSH T159E4AE40F381FEFAEC998A7864E21319E3B6B0054328E62B365CED6D4F17A549C37785
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10
Malware Config
Signatures
- DLL Hijacking vulnerability 1 IoCs
Signed PE file loads submitted unsigned PE file, allowing DLL hijacking/sideloading/preloading.
resource unpack002/nvml.dll - Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack002/nvml.dll
File Explorer
-
07072026_1715_Tax_Notice_92730.exe.iso.iso 682KB
-
out.iso.iso 682KB
-
Tax_Notice_92730.exe.exe 287KB
-
nvml.dll.dll 330KB
out.iso
- SHA256 e7ced9c4dfcc9653d39941c3ac189e574babe49f4ce50e0c62944d34e71add42
- MD5 96c020d7096c0eb114109c03b5f21cce
- SHA1 9ac4811179d01d624efdf2bb0cc03a84cbde6a9b
- SHA512 a799f5965176dc5942f13d7404299d174e37678675af39681332663aa18dfc0fb5fc64573e536103ed83752b5e6e9bd48c657007eee19866b7f311254c440e63
- SSDEEP 12288:QC/Qyk8G5di0euCCVbkM71Nfhu+1mqTnNFm:QCoyTG5di0FCqt5DLTr
- TLSH T159E4AE40F381FEFAEC998A7864E21319E3B6B0054328E62B365CED6D4F17A549C37785
- MD5 SHA1 SHA512 SSDEEP TLSH
Password
infected
Tax_Notice_92730.exe
- IMPHASH e94c291cbf7f11ed5641bc513cd6a0f8
- SHA256 93694473622f770d539263ae211dde4715264b0f23c858ba69796adca76cae35
- MD5 c9afda4f027fc9510134cffcc4d54da3
- SHA1 c5b5fb5f06d1f6cf98afa0df97f57e9bd7b454ed
- SHA512 91fc95c20e93059a470c5d6506ce368581679cb7b43216b44a5a1f2e440eee1729523935943226ad488a98cfc7ac7ce5888bae01ed359962feb3eb01e9b8e458
- SSDEEP 6144:/bMNk1Nfm0rfQBqZE+peAn5IEJvMqTBJNFmU:/71Nfhu+1mqTnNFmU
- TLSH T15A547D81FB866EFAEC79447C8AF1662AFB70B0180364C35B26989097DF133915D3A3D5
- MD5 SHA1 SHA512 SSDEEP TLSH
Password
infected
Digest
fb:f1:b6:55:9f:d0:4f:3b:8f:d4:c4:12:f6:8a:b5:72:1b:2e:45:39:02:93:72:69:74:cf:23:8f:4f:49:39:be
Digest Algorithm
sha256
PE Digests Matches
Trusted
Signing Certificate
CN=Microsoft Windows Hardware Compatibility Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Chains
Dec 19, 2023
CN=Microsoft Windows Hardware Compatibility Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Digest
fb:f1:b6:55:9f:d0:4f:3b:8f:d4:c4:12:f6:8a:b5:72:1b:2e:45:39:02:93:72:69:74:cf:23:8f:4f:49:39:be
Digest Algorithm
sha256
PE Digests Matches
Trusted
Signing Certificate
CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US
Chains
Nov 21, 2023
CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US
CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US
CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US
CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US
CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US
CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US
CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US
Subject
CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US
Serial Number
08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Issuer
CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US
Key Usages
KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign
Ext Key Usages
ExtKeyUsageCodeSigning
Timespan
Apr 29, 2021 - Apr 28, 2036
Subject
CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US
Serial Number
0d:01:94:cd:1e:31:42:20:51:35:d1:c6:36:e4:e9:ba
Issuer
CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US
Key Usages
KeyUsageDigitalSignature
Ext Key Usages
ExtKeyUsageCodeSigning
Timespan
Oct 18, 2022 - Oct 15, 2025
Subject
CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US
Serial Number
05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Issuer
CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US
Key Usages
KeyUsageDigitalSignature
Ext Key Usages
ExtKeyUsageTimeStamping
Timespan
Jul 14, 2023 - Oct 13, 2034
Subject
CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US
Serial Number
07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Issuer
CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US
Key Usages
KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign
Ext Key Usages
ExtKeyUsageTimeStamping
Timespan
Mar 23, 2022 - Mar 22, 2037
Subject
CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US
Serial Number
0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Issuer
CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US
Key Usages
KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign
Timespan
Aug 1, 2022 - Nov 9, 2031
Subject
CN=Microsoft Windows Hardware Compatibility Publisher,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Serial Number
33:00:00:01:09:5e:de:a2:12:7e:92:81:cc:00:00:00:00:01:09
Issuer
CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Ext Key Usages
ExtKeyUsageCodeSigning
Timespan
Sep 14, 2023 - Sep 4, 2024
Subject
CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Serial Number
61:0b:aa:c1:00:00:00:00:00:09
Issuer
CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Key Usages
KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign
Timespan
Apr 18, 2012 - Apr 18, 2027
Subject
CN=Microsoft Time-Stamp Service,OU=Microsoft America Operations+OU=nShield TSS ESN:9200-05E0-D947,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Serial Number
33:00:00:01:cf:52:36:be:71:4b:cd:48:ca:00:01:00:00:01:cf
Issuer
CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Key Usages
KeyUsageDigitalSignature
Ext Key Usages
ExtKeyUsageTimeStamping
Timespan
May 25, 2023 - Feb 1, 2024
Subject
CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Serial Number
33:00:00:00:15:c5:e7:6b:9e:02:9b:49:99:00:00:00:00:00:15
Issuer
CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US
Key Usages
KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign
Ext Key Usages
ExtKeyUsageTimeStamping
Timespan
Sep 30, 2021 - Sep 30, 2030
Minor OS version
2
Major OS version
5
Entry point
81172
Magic Number
523
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_CUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
PDB paths
kernel32
ReleaseMutex
WaitForSingleObject
CreateMutexA
CloseHandle
CreateFileA
GetLastError
ReadFile
WriteFile
SetFilePointer
GetProcessHeap
SetEndOfFile
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
SetStdHandle
GetModuleHandleW
Sleep
GetProcAddress
ExitProcess
HeapAlloc
HeapFree
HeapReAlloc
EnterCriticalSection
LeaveCriticalSection
DeleteFileA
GetSystemTimeAsFileTime
GetCommandLineA
RtlUnwindEx
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
EncodePointer
DecodePointer
FlsGetValue
FlsSetValue
FlsFree
SetLastError
GetCurrentThreadId
FlsAlloc
GetStdHandle
GetModuleFileNameA
DeleteCriticalSection
LoadLibraryA
InitializeCriticalSectionAndSpinCount
HeapSetInformation
HeapCreate
GetCPInfo
GetACP
GetOEMCP
IsValidCodePage
SetHandleCount
GetFileType
GetStartupInfoA
WideCharToMultiByte
GetConsoleCP
GetConsoleMode
MultiByteToWideChar
FlushFileBuffers
FreeEnvironmentStringsA
GetEnvironmentStrings
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
HeapSize
GetLocaleInfoA
LCMapStringA
LCMapStringW
GetStringTypeA
GetStringTypeW
nvml
nvmlDeviceGetCount_v2
nvmlDeviceGetHandleByIndex_v2
nvmlDeviceGetName
nvmlDeviceGetSerial
nvmlDeviceGetUUID
nvmlInit_v2
nvmlErrorString
nvmlInternalGetExportTable
nvmlShutdown
Name
.text
Size
126KB
Virtual Size
126KB
Characteristics
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
Name
.rdata
Size
126KB
Virtual Size
125KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Name
.data
Size
7KB
Virtual Size
15KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Name
.pdata
Size
5KB
Virtual Size
5KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Name
.rsrc
Size
1024B
Virtual Size
832B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
generic
count=2, id=257, productName=VS2019 v16.9.2 build 29913, version=29913,
count=35, id=132, productName=VS2008 build 21022, version=21022,
count=10, id=149, productName=VS2008 build 21022, version=21022,
count=3, id=123, productName=VS2005 build 50727, version=50727,
count=101, id=1, productName=Unmarked objects,
count=186, id=131, productName=VS2008 build 21022, version=21022,
count=1, id=148, productName=VS2008 build 21022, version=21022,
count=1, id=145, productName=VS2008 build 21022, version=21022,
nvml.dll
- IMPHASH 892f052923d075e566e8cbb4332dc552
- SHA256 7f0509e4493acef1bfdb62fb57a74b887ef1ac64e30c568508911f23c16b0233
- MD5 8723d44b24a3f7e480549b65b521c537
- SHA1 2161a6c768b3643a1ddab488271e288b8aaaa13a
- SHA512 cb1020d4db27d9ee791f13de92d8bccbdff24fdbc9c036c9716173e8b40a26952393e75e859e0b624a7f63f328012d9c9ad29be60aff6696fd281ab694950d79
- SSDEEP 6144:jNX7Ca+5S+eKnk52rKVuzHySiZV2j3HYNeJturpgPofvNbzcflmR:xC/Qyk8G5di0euCCVbk8
- TLSH T14D746C50F281FEB5EC8ACFB524D2134993BAB045972DB93F6620FE3C015EA68D473985
- MD5 SHA1 SHA512 SSDEEP TLSH
-
DLL Hijacking vulnerability
Signed PE file loads submitted unsigned PE file, allowing DLL hijacking/sideloading/preloading.
-
Unsigned PE
Checks for missing Authenticode signature.
Password
infected
Minor OS version
0
Major OS version
4
Entry point
4944
Magic Number
523
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
PDB paths
advapi32
AllocateAndInitializeSid
CheckTokenMembership
FreeSid
RegCloseKey
RegCreateKeyExW
RegSetValueExW
kernel32
CloseHandle
CopyFileW
CreateDirectoryW
CreateFileW
CreateThread
DeleteCriticalSection
DisableThreadLibraryCalls
EnterCriticalSection
ExitProcess
FreeConsole
GetCurrentThread
GetEnvironmentVariableW
GetFileAttributesW
GetFileSize
GetLastError
GetModuleFileNameW
GetProcAddress
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryW
QueueUserAPC
ReadFile
SetFileAttributesW
SetFilePointer
Sleep
TlsGetValue
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
lstrcatW
lstrlenW
msvcrt
__iob_func
_amsg_exit
_initterm
_lock
_unlock
abort
calloc
free
fwrite
realloc
strlen
strncmp
vfprintf
shell32
ShellExecuteExW
user32
SetProcessDPIAware
wsprintfW
nvmlDeviceGetCount_v2
nvmlDeviceGetHandleByIndex_v2
nvmlDeviceGetName
nvmlDeviceGetSerial
nvmlDeviceGetUUID
nvmlErrorString
nvmlInit_v2
nvmlInternalGetExportTable
nvmlShutdown
Name
.text
Size
8KB
Virtual Size
7KB
Characteristics
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
Name
.data
Size
512B
Virtual Size
96B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Name
.rdata
Size
1024B
Virtual Size
944B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Name
.pdata
Size
512B
Virtual Size
444B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Name
.xdata
Size
512B
Virtual Size
324B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Name
.bss
Size
Virtual Size
208B
Characteristics
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Name
.edata
Size
512B
Virtual Size
325B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Name
.idata
Size
2KB
Virtual Size
2KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Name
.CRT
Size
512B
Virtual Size
88B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Name
.tls
Size
512B
Virtual Size
16B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Name
.reloc
Size
512B
Virtual Size
88B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/4
Size
1024B
Virtual Size
640B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/19
Size
157KB
Virtual Size
156KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/31
Size
7KB
Virtual Size
6KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/45
Size
9KB
Virtual Size
8KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/57
Size
2KB
Virtual Size
1KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/70
Size
1024B
Virtual Size
765B
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/81
Size
10KB
Virtual Size
10KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Name
/92
Size
1KB
Virtual Size
1KB
Characteristics
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ