FsIso[.]exe | Triage

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General

Target

FsIso.exe
Size

97KB
MD5

8b3d386cf9afe4564a477847a67b2569
SHA1

38254093023991c685090edf941c89b3e30f9978
SHA256

eae64e3d0fdc96726dd4319be07d7afd89435a3a694680a041acc095f0991c3f
SHA512

b51462d718263a6a15036e455acf4f54d1ed7bfcb171e22226d70ab8e0b7894486ee35beea3921f3d06681e799005efb88ccf406e98de1738d4b28418f4111a1
SSDEEP

1536:yZzd7r9rLZa494FTyTVDFrUYsTIOe3u9ZkJXKxQPKkpf:GzNBZa49wTyTVlUYsTGe9ZmaiLf

Score

1^/10

Malware Config

Signatures

Files

FsIso.exe
.exe windows x64

dcd8680b7d9ebe6d1dbec6053633bc90

Code Sign

33:00:00:02:b1:72:b7:68:2d:ea:e6:58:18:00:00:00:00:02:b1
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

24/09/2020, 19:16

Not After

23/09/2021, 19:16

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

62:3d:35:a4:c8:de:8f:cf:f1:7f:28:24:a6:bc:26:da:82:24:3a:73:4a:5e:47:5e:0c:81:8e:ed:87:a7:6c:ac
Signer

Actual PE Digest

62:3d:35:a4:c8:de:8f:cf:f1:7f:28:24:a6:bc:26:da:82:24:3a:73:4a:5e:47:5e:0c:81:8e:ed:87:a7:6c:ac

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

Imports

msvcrt

memcpy
_fmode
_commode
_initterm
__setusermatherr
?terminate@@YAXXZ
_exit
__CxxFrameHandler3
calloc
free
malloc
_vsnprintf_s
_callnewh
__C_specific_handler
exit
_cexit
__set_app_type
__wgetmainargs
_amsg_exit
_XcptFilter
ceil
memcmp
memset

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

GetProcessHeap
HeapFree
HeapAlloc

api-ms-win-core-synch-l1-1-0

SetEvent
CreateEventW
WaitForSingleObject
ReleaseSRWLockExclusive
AcquireSRWLockExclusive

api-ms-win-core-handle-l1-1-0

CloseHandle

api-ms-win-core-errorhandling-l1-1-0

UnhandledExceptionFilter
SetUnhandledExceptionFilter
RaiseException
GetLastError

api-ms-win-eventing-provider-l1-1-0

EventUnregister
EventWriteTransfer
EventSetInformation
EventRegister

api-ms-win-core-memory-l1-1-0

UnmapViewOfFile
MapViewOfFile

rpcrt4

RpcServerRegisterIf
RpcServerUnregisterIf
RpcMgmtStopServerListening
RpcServerListen
RpcServerUseProtseqEpW
NdrServerCallAll
NdrServerCall2

api-ms-win-core-synch-l1-2-0

Sleep

api-ms-win-core-libraryloader-l1-2-0

GetModuleHandleW

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-0

TerminateProcess
GetCurrentProcessId
GetCurrentThreadId
GetCurrentProcess

api-ms-win-core-sysinfo-l1-1-0

GetSystemTimeAsFileTime
GetTickCount

api-ms-win-core-rtlsupport-l1-1-0

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext

iumsdk

OpenSecureSection
CreateSecureSection

Exports

Exports

__ImagePolicyMetadata

Sections

.text
Size: 55KB - Virtual size: 55KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 27KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tPolicy
Size: 512B - Virtual size: 160B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 1024B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 460B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

dcd8680b7d9ebe6d1dbec6053633bc90

Code Sign

33:00:00:02:b1:72:b7:68:2d:ea:e6:58:18:00:00:00:00:02:b1Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

62:3d:35:a4:c8:de:8f:cf:f1:7f:28:24:a6:bc:26:da:82:24:3a:73:4a:5e:47:5e:0c:81:8e:ed:87:a7:6c:acSigner

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

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

api-ms-win-core-synch-l1-1-0

api-ms-win-core-handle-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-eventing-provider-l1-1-0

api-ms-win-core-memory-l1-1-0

rpcrt4

api-ms-win-core-synch-l1-2-0

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-rtlsupport-l1-1-0

iumsdk

Exports

Exports

Sections

.text Size: 55KB - Virtual size: 55KB

.rdata Size: 27KB - Virtual size: 26KB

.data Size: 512B - Virtual size: 1KB

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

.tPolicy Size: 512B - Virtual size: 160B

.rsrc Size: 1024B - Virtual size: 1024B

.reloc Size: 512B - Virtual size: 460B

33:00:00:02:b1:72:b7:68:2d:ea:e6:58:18:00:00:00:00:02:b1
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

62:3d:35:a4:c8:de:8f:cf:f1:7f:28:24:a6:bc:26:da:82:24:3a:73:4a:5e:47:5e:0c:81:8e:ed:87:a7:6c:ac
Signer

.text
Size: 55KB - Virtual size: 55KB

.rdata
Size: 27KB - Virtual size: 26KB

.data
Size: 512B - Virtual size: 1KB

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

.tPolicy
Size: 512B - Virtual size: 160B

.rsrc
Size: 1024B - Virtual size: 1024B

.reloc
Size: 512B - Virtual size: 460B