Static task
static1
Behavioral task
behavioral1
Sample
starpdf_v2.050.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
starpdf_v2.050.exe
Resource
win10v2004-20230220-en
General
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Target
starpdf_v2.050.exe
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Size
9.5MB
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MD5
9c7e5f12b3e91c2cce4397faac2adc0d
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SHA1
cbbb7f4310d7c1691e5cac64b8f587f67075e1c1
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SHA256
15a0e1dd90b9b8ad8eb611256f4d8768501e92b93b9800a43f872727173ebfcf
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SHA512
16defc59d627568cd0a0ae2a84c80c95a3e1c33c5fa968c66201fd9a709158bececc8b809417633ed09a68e32fa8e080a2e3084139cc15c409e530a2d55196f2
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SSDEEP
196608:1Tz6vb3FahtL6HaSt9hU56v5scsG00gD7K15NRk1jWiwNXXVnfAc:Ri4bSRU5wsegD7K15NRk15wNXlnYc
Malware Config
Signatures
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NSIS installer 2 IoCs
resource yara_rule sample nsis_installer_1 sample nsis_installer_2
Files
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starpdf_v2.050.exe.exe windows x86
7fa974366048f9c551ef45714595665e
Code Sign
36:12:22:96:c5:e3:38:a5:20:a1:d2:5f:4c:d7:09:54Certificate
IssuerCN=Thawte Premium Server CA,OU=Certification Services Division,O=Thawte Consulting cc,L=Cape Town,ST=Western Cape,C=ZA,1.2.840.113549.1.9.1=#0c197072656d69756d2d736572766572407468617774652e636f6dNot Before01/08/1996, 00:00Not After01/01/2021, 23:59SubjectCN=Thawte Premium Server CA,OU=Certification Services Division,O=Thawte Consulting cc,L=Cape Town,ST=Western Cape,C=ZA,1.2.840.113549.1.9.1=#0c197072656d69756d2d736572766572407468617774652e636f6d79:a2:a5:85:f9:d1:15:42:13:d9:b8:3e:f6:b6:8d:edCertificate
IssuerCN=VeriSign Time Stamping Services CA,O=VeriSign\, Inc.,C=USNot Before01/05/2012, 00:00Not After31/12/2012, 23:59SubjectCN=Symantec Time Stamping Services Signer - G3,O=Symantec Corporation,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
47:bf:19:95:df:8d:52:46:43:f7:db:6d:48:0d:31:a4Certificate
IssuerCN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZANot Before04/12/2003, 00:00Not After03/12/2013, 23:59SubjectCN=VeriSign Time Stamping Services CA,O=VeriSign\, Inc.,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageCertSign
KeyUsageCRLSign
3b:74:d9:37:78:84:64:82:59:b4:bd:65:fa:2a:02:1fCertificate
IssuerCN=Thawte Code Signing CA - G2,O=Thawte\, Inc.,C=USNot Before01/09/2011, 00:00Not After31/08/2013, 23:59SubjectCN=(주)이비즈네트웍스,O=(주)이비즈네트웍스,L=Gangnam-gu,ST=Seoul,C=KRExtended Key Usages
ExtKeyUsageCodeSigning
ExtKeyUsageMicrosoftCommercialCodeSigning
33:65:50:08:79:ad:73:e2:30:b9:e0:1d:0d:7f:ac:91Certificate
IssuerCN=Thawte Premium Server CA,OU=Certification Services Division,O=Thawte Consulting cc,L=Cape Town,ST=Western Cape,C=ZA,1.2.840.113549.1.9.1=#0c197072656d69756d2d736572766572407468617774652e636f6dNot Before17/11/2006, 00:00Not After30/12/2020, 23:59SubjectCN=thawte Primary Root CA,OU=Certification Services Division+OU=(c) 2006 thawte\, Inc. - For authorized use only,O=thawte\, Inc.,C=USKey Usages
KeyUsageCertSign
KeyUsageCRLSign
47:97:4d:78:73:a5:bc:ab:0d:2f:b3:70:19:2f:ce:5eCertificate
IssuerCN=thawte Primary Root CA,OU=Certification Services Division+OU=(c) 2006 thawte\, Inc. - For authorized use only,O=thawte\, Inc.,C=USNot Before08/02/2010, 00:00Not After07/02/2020, 23:59SubjectCN=Thawte Code Signing CA - G2,O=Thawte\, Inc.,C=USExtended Key Usages
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning
Key Usages
KeyUsageCertSign
KeyUsageCRLSign
Signer
Actual PE DigestDigest AlgorithmPE Digest MatchesfalseHeaders
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
CompareFileTime
SearchPathA
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
GetLastError
CreateDirectoryA
SetFileAttributesA
Sleep
GetTickCount
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
GetWindowsDirectoryA
SetFileTime
GetCommandLineA
SetErrorMode
LoadLibraryA
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
CreateProcessA
RemoveDirectoryA
CreateFileA
GetTempFileNameA
lstrlenA
lstrcatA
GetSystemDirectoryA
GetVersion
CloseHandle
lstrcmpiA
lstrcmpA
ExpandEnvironmentStringsA
GlobalFree
GlobalAlloc
WaitForSingleObject
GetExitCodeProcess
GetModuleHandleA
LoadLibraryExA
GetProcAddress
FreeLibrary
MultiByteToWideChar
WritePrivateProfileStringA
GetPrivateProfileStringA
WriteFile
ReadFile
MulDiv
SetFilePointer
FindClose
FindNextFileA
FindFirstFileA
DeleteFileA
GetTempPathA
user32
EndDialog
ScreenToClient
GetWindowRect
EnableMenuItem
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
GetWindowLongA
SetCursor
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetClipboardData
EmptyClipboard
RegisterClassA
TrackPopupMenu
AppendMenuA
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
DestroyWindow
CreateDialogParamA
SetTimer
SetWindowTextA
PostQuitMessage
SetForegroundWindow
wsprintfA
SendMessageTimeoutA
FindWindowExA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
OpenClipboard
ExitWindowsEx
IsWindow
GetDlgItem
SetWindowLongA
LoadImageA
GetDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
EndPaint
ShowWindow
gdi32
SetBkColor
GetDeviceCaps
DeleteObject
CreateBrushIndirect
CreateFontIndirectA
SetBkMode
SetTextColor
SelectObject
shell32
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
ShellExecuteA
SHFileOperationA
SHGetSpecialFolderLocation
advapi32
RegQueryValueExA
RegSetValueExA
RegEnumKeyA
RegEnumValueA
RegOpenKeyExA
RegDeleteKeyA
RegDeleteValueA
RegCloseKey
RegCreateKeyExA
comctl32
ImageList_AddMasked
ImageList_Destroy
ord17
ImageList_Create
ole32
CoTaskMemFree
OleInitialize
OleUninitialize
CoCreateInstance
version
GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA
Sections
.text Size: 23KB - Virtual size: 23KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 151KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.ndata Size: - Virtual size: 84KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 20KB - Virtual size: 19KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ