IAENMAIL-A4-230704-0830-0003275[.]pdf[.]exe

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General

Target

IAENMAIL-A4-230704-0830-0003275.pdf.exe
Size

330KB
MD5

6d83dfee0c83b2deaacb5ad5e761e49f
SHA1

897506d9bba4c7d01defe2adc0a3b814eee88c64
SHA256

1c809aae258aaa9f029a80ed7b754eead202037eaa84b95c1ee9df2e49faf927
SHA512

5b8c6b7250880b5ba979620b4c0c4cc0fea1fa8cc55f353ca5073668e654c03c920a39e4e040c464b66c4c08233e5f495c56694678c63fec9ce0201b51492587
SSDEEP

6144:hjqbpfwsPyzqIIOeIpCzH1S4V+6eZ56RerE2XLFOZ3l//Q9SZ2xBttDEXpQvpTMr:eJyzq5ONpQ8Kw56RwzG1Y982RhQihTMr

Score

1^/10

Malware Config

Signatures

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

IAENMAIL-A4-230704-0830-0003275.pdf.exe
.exe windows x86

3abe302b6d9a1256e6a915429af4ffd2

Code Sign

3f:ce:59:26:5c:59:24:c2:71:07:49:9b:31:cc:77:7b:d7:c5:4d:68
Certificate

Issuer

OU=Pelted Sessionslokalets Madagaskere\ ,O=Cancercellerne,L=Apelern Lyhren,ST=Niedersachsen,C=DE,1.2.840.113549.1.9.1=#0c15566563746f72696e6740507570617269616c2e5375

Not Before

27/03/2023, 01:19

Not After

26/03/2026, 01:19

Subject

OU=Pelted Sessionslokalets Madagaskere\ ,O=Cancercellerne,L=Apelern Lyhren,ST=Niedersachsen,C=DE,1.2.840.113549.1.9.1=#0c15566563746f72696e6740507570617269616c2e5375

2b:d4:ae:70:b9:d0:63:5b:2a:e9:84:c8:d6:74:aa:30
Certificate

Issuer

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Not Before

28/07/2022, 08:56

Not After

27/07/2033, 08:56

Subject

CN=Certum Timestamp 2022,O=Asseco Data Systems S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87
Certificate

Issuer

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

19/05/2021, 05:32

Not After

18/05/2036, 05:32

Subject

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27
Certificate

Issuer

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

31/05/2021, 06:43

Not After

17/09/2029, 06:43

Subject

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

50:52:49:c7:4a:19:4d:4a:c5:d6:db:d8:2b:08:02:35:4a:9f:da:dd:57:4a:df:94:4c:bc:70:e4:ee:5f:5f:d2
Signer

Actual PE Digest

50:52:49:c7:4a:19:4d:4a:c5:d6:db:d8:2b:08:02:35:4a:9f:da:dd:57:4a:df:94:4c:bc:70:e4:ee:5f:5f:d2

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
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

GetTempPathA
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
SetEnvironmentVariableA
Sleep
GetTickCount
GetCommandLineA
lstrlenA
GetVersion
SetErrorMode
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GetWindowsDirectoryA
SetCurrentDirectoryA
GetLastError
CreateDirectoryA
CreateProcessA
RemoveDirectoryA
CreateFileA
GetTempFileNameA
ReadFile
WriteFile
lstrcpyA
MoveFileExA
lstrcatA
GetSystemDirectoryA
GetProcAddress
GetExitCodeProcess
WaitForSingleObject
CompareFileTime
SetFileAttributesA
GetFileAttributesA
GetShortPathNameA
MoveFileA
GetFullPathNameA
SetFileTime
SearchPathA
CloseHandle
lstrcmpiA
CreateThread
GlobalLock
lstrcmpA
FindFirstFileA
FindNextFileA
DeleteFileA
SetFilePointer
GetPrivateProfileStringA
FindClose
MultiByteToWideChar
FreeLibrary
MulDiv
WritePrivateProfileStringA
LoadLibraryExA
GetModuleHandleA
GlobalAlloc
GlobalFree
ExpandEnvironmentStringsA

user32

ScreenToClient
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
GetWindowLongA
SetCursor
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetClipboardData
EmptyClipboard
PostQuitMessage
GetWindowRect
EnableMenuItem
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
ReleaseDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
EndDialog
RegisterClassA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
ExitWindowsEx
GetDC
CreateDialogParamA
SetTimer
GetDlgItem
SetWindowLongA
SetForegroundWindow
LoadImageA
IsWindow
SendMessageTimeoutA
FindWindowExA
OpenClipboard
TrackPopupMenu
AppendMenuA
EndPaint
DestroyWindow
wsprintfA
ShowWindow
SetWindowTextA

gdi32

SelectObject
SetBkMode
CreateFontIndirectA
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor

shell32

SHGetSpecialFolderLocation
ShellExecuteExA
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
SHFileOperationA

advapi32

AdjustTokenPrivileges
RegCreateKeyExA
RegOpenKeyExA
SetFileSecurityA
OpenProcessToken
LookupPrivilegeValueA
RegEnumValueA
RegDeleteKeyA
RegDeleteValueA
RegCloseKey
RegSetValueExA
RegQueryValueExA
RegEnumKeyA

comctl32

ImageList_Create
ImageList_AddMasked
ImageList_Destroy
ord17

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

Sections

.text
Size: 24KB - 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: 106KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 88KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 28KB - Virtual size: 27KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3abe302b6d9a1256e6a915429af4ffd2

Code Sign

3f:ce:59:26:5c:59:24:c2:71:07:49:9b:31:cc:77:7b:d7:c5:4d:68Certificate

2b:d4:ae:70:b9:d0:63:5b:2a:e9:84:c8:d6:74:aa:30Certificate

Extended Key Usages

Key Usages

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87Certificate

Extended Key Usages

Key Usages

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27Certificate

Key Usages

50:52:49:c7:4a:19:4d:4a:c5:d6:db:d8:2b:08:02:35:4a:9f:da:dd:57:4a:df:94:4c:bc:70:e4:ee:5f:5f:d2Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

.text Size: 24KB - Virtual size: 23KB

.rdata Size: 5KB - Virtual size: 4KB

.data Size: 1024B - Virtual size: 106KB

.ndata Size: - Virtual size: 88KB

.rsrc Size: 28KB - Virtual size: 27KB

3f:ce:59:26:5c:59:24:c2:71:07:49:9b:31:cc:77:7b:d7:c5:4d:68
Certificate

2b:d4:ae:70:b9:d0:63:5b:2a:e9:84:c8:d6:74:aa:30
Certificate

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87
Certificate

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27
Certificate

50:52:49:c7:4a:19:4d:4a:c5:d6:db:d8:2b:08:02:35:4a:9f:da:dd:57:4a:df:94:4c:bc:70:e4:ee:5f:5f:d2
Signer

.text
Size: 24KB - Virtual size: 23KB

.rdata
Size: 5KB - Virtual size: 4KB

.data
Size: 1024B - Virtual size: 106KB

.ndata
Size: - Virtual size: 88KB

.rsrc
Size: 28KB - Virtual size: 27KB