Report - tssysprep.dll

Gen1 Malicious Packer PE File PE64 DLL
ScreenShot
Created 2025.04.08 05:19 Machine s1_win7_x6401
Filename tssysprep.dll
Type PE32+ executable (DLL) (GUI) x86-64, for MS Windows
AI Score
3
Behavior Score
0.8
ZERO API file : clean
VT API (file)
md5 e59a1f8f4039ee8470009ef03a5cd292
sha256 288da46cbf4aa6e74d650c31a50771afcac499ffc76c349153cceccd317cbb4f
ssdeep 768:Io3pL/sVYzfwoWjIEQFOY+yBoGrAHCFcmlNPdHwvYXzl0MyxbgrxVH:IgLGbHBmlPD+HZgrxJ
imphash e16a254190b5318d0665c0fdf2746840
impfuzzy 96:ouXajVljVrqnabuL76U4q1jVlXYi8v3GgvQmjmEK1CvKyVvu/Ol0Gn:ouXaHB25LmS1zyTOsLu4Xn
  Network IP location

Signature (3cnts)

Level Description
notice Allocates read-write-execute memory (usually to unpack itself)
info The executable contains unknown PE section names indicative of a packer (could be a false positive)
info This executable has a PDB path

Rules (5cnts)

Level Name Description Collection
danger Win32_Trojan_Gen_1_0904B0_Zero Win32 Trojan Emotet binaries (upload)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
info IsDLL (no description) binaries (upload)
info IsPE64 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

Suricata ids

PE API

IAT(Import Address Table) Library

msvcrt.dll
 0x18000af10 _snwprintf_s
 0x18000af18 ??3@YAXPEAX@Z
 0x18000af20 _vsnwprintf_s
 0x18000af28 ??1type_info@@UEAA@XZ
 0x18000af30 _callnewh
 0x18000af38 _purecall
 0x18000af40 ??0exception@@QEAA@AEBQEBD@Z
 0x18000af48 ??0exception@@QEAA@AEBQEBDH@Z
 0x18000af50 ??1exception@@UEAA@XZ
 0x18000af58 ?what@exception@@UEBAPEBDXZ
 0x18000af60 _CxxThrowException
 0x18000af68 memcpy
 0x18000af70 memmove
 0x18000af78 ??_V@YAXPEAX@Z
 0x18000af80 _onexit
 0x18000af88 __dllonexit
 0x18000af90 _unlock
 0x18000af98 _lock
 0x18000afa0 __C_specific_handler
 0x18000afa8 _initterm
 0x18000afb0 malloc
 0x18000afb8 free
 0x18000afc0 _amsg_exit
 0x18000afc8 _XcptFilter
 0x18000afd0 ??0exception@@QEAA@AEBV0@@Z
 0x18000afd8 __CxxFrameHandler3
 0x18000afe0 memset
WDSCORE.dll
 0x18000aec8 CurrentIP
 0x18000aed0 WdsSetupLogMessageW
 0x18000aed8 ConstructPartialMsgVW
ntdll.dll
 0x18000aff0 RtlCaptureContext
 0x18000aff8 RtlVirtualUnwind
 0x18000b000 RtlLookupFunctionEntry
KERNEL32.dll
 0x18000ad58 GetSystemFirmwareTable
 0x18000ad60 GetLastError
 0x18000ad68 Sleep
 0x18000ad70 TerminateProcess
 0x18000ad78 GetCurrentProcess
 0x18000ad80 SetUnhandledExceptionFilter
 0x18000ad88 WideCharToMultiByte
 0x18000ad90 UnhandledExceptionFilter
 0x18000ad98 GetTickCount
 0x18000ada0 GetSystemTimeAsFileTime
 0x18000ada8 GetCurrentThreadId
 0x18000adb0 GetCurrentProcessId
 0x18000adb8 QueryPerformanceCounter
 0x18000adc0 LocalFree
 0x18000adc8 SetLastError
 0x18000add0 OutputDebugStringW
 0x18000add8 LoadLibraryW
 0x18000ade0 GetProcAddress
 0x18000ade8 FreeLibrary
 0x18000adf0 CloseHandle
 0x18000adf8 RaiseException
 0x18000ae00 WriteFile
 0x18000ae08 SetFilePointer
 0x18000ae10 CreateFileW
 0x18000ae18 GetVersionExW
CRYPT32.dll
 0x18000ad20 CertCloseStore
 0x18000ad28 CertFindCertificateInStore
 0x18000ad30 CertOpenStore
 0x18000ad38 CertDeleteCertificateFromStore
SHLWAPI.dll
 0x18000aea8 SHGetValueW
 0x18000aeb0 SHDeleteKeyW
 0x18000aeb8 SHDeleteValueW
api-ms-win-core-com-l1-1-0.dll
 0x18000aee8 CoUninitialize
 0x18000aef0 CoCreateInstance
 0x18000aef8 CoSetProxyBlanket
 0x18000af00 CoInitializeEx
ADVAPI32.dll
 0x18000abf8 GetAclInformation
 0x18000ac00 GetAce
 0x18000ac08 EqualSid
 0x18000ac10 DeleteAce
 0x18000ac18 InitializeSecurityDescriptor
 0x18000ac20 SetSecurityDescriptorControl
 0x18000ac28 RegDeleteKeyW
 0x18000ac30 RegEnumKeyExW
 0x18000ac38 GetSecurityDescriptorLength
 0x18000ac40 RegQueryInfoKeyW
 0x18000ac48 GetSecurityDescriptorDacl
 0x18000ac50 SetSecurityDescriptorDacl
 0x18000ac58 RegOpenKeyExW
 0x18000ac60 RegCloseKey
 0x18000ac68 RegCreateKeyExW
 0x18000ac70 RegSetValueExW
 0x18000ac78 GetTokenInformation
 0x18000ac80 SetSecurityDescriptorGroup
 0x18000ac88 MakeAbsoluteSD
 0x18000ac90 MakeSelfRelativeSD
 0x18000ac98 RegQueryValueExW
 0x18000aca0 AddAccessAllowedAce
 0x18000aca8 IsValidAcl
 0x18000acb0 GetLengthSid
 0x18000acb8 AddAccessAllowedAceEx
 0x18000acc0 InitializeAcl
 0x18000acc8 FreeSid
 0x18000acd0 OpenProcessToken
 0x18000acd8 IsValidSecurityDescriptor
 0x18000ace0 AddAce
 0x18000ace8 GetSecurityDescriptorOwner
 0x18000acf0 GetSecurityDescriptorGroup
 0x18000acf8 AllocateAndInitializeSid
 0x18000ad00 SetSecurityDescriptorOwner
 0x18000ad08 GetSecurityDescriptorSacl
 0x18000ad10 RegDeleteValueW
OLEAUT32.dll
 0x18000ae28 SysFreeString
 0x18000ae30 SafeArrayUnlock
 0x18000ae38 SafeArrayGetUBound
 0x18000ae40 VariantInit
 0x18000ae48 SafeArrayDestroy
 0x18000ae50 SafeArrayRedim
 0x18000ae58 VariantClear
 0x18000ae60 SafeArrayAccessData
 0x18000ae68 SafeArrayCreate
 0x18000ae70 SafeArrayUnaccessData
 0x18000ae78 SafeArrayLock
 0x18000ae80 SysAllocString
 0x18000ae88 SafeArrayGetVartype
 0x18000ae90 SafeArrayCopy
 0x18000ae98 SafeArrayGetLBound
CRYPTBASE.dll
 0x18000ad48 SystemFunction036

EAT(Export Address Table) Library

0x1800024b0 AppsrvSysPrepGeneralize
0x1800029a0 AppsrvSysPrepSpecializeOffline
0x180002b80 AppsrvSysPrepSpecializeOnline
0x180002e50 CBrokerSysPrepGeneralize
0x180003340 CBrokerSysPrepSpecializeOffline
0x180003520 CBrokerSysPrepSpecializeOnline
0x180003820 LSMSysPrepBackup
0x1800039f0 LSMSysPrepRestoreOffline
0x180003bb0 LSMSysPrepRestoreOnline
0x180003d70 RCMSysPrepGeneralize
0x180003f20 RdpSysPrepGeneralize
0x1800040f0 RdpSysPrepRestoreOffline
0x1800043d0 RdpSysPrepRestoreOnline


Similarity measure (PE file only) - Checking for service failure