B01BF4684804C152DFE3D55B781C5341F12C8259ED81B296619A49E7A69BDD48

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General

Target

B01BF4684804C152DFE3D55B781C5341F12C8259ED81B296619A49E7A69BDD48
Size

283KB
MD5

391239e6877666287180235412f6afa2
SHA1

102058f9304c5c05307e9785141037c0b25038e9
SHA256

b01bf4684804c152dfe3d55b781c5341f12c8259ed81b296619a49e7a69bdd48
SHA512

26c638cb495de194bf8fbdc2e881b87e29308db3ba2a4c704ccedc5170c46cd4d78495ca7fc3d3e7e5d983c21bfc8639c06caae9e1efd1b1882c7f01ffc8ada0
SSDEEP

6144:Ue8SI7bMqJQJUshVEZuG0DmqvdLMEWNgGTm4ECbyumBVj/Rx:tZI7bYiZuGJ3EWVb8jjJx

Score

1^/10

Malware Config

Signatures

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
static1/unpack001/Lserskarers.exe	nsis_installer_1
static1/unpack001/Lserskarers.exe	nsis_installer_2

Files

B01BF4684804C152DFE3D55B781C5341F12C8259ED81B296619A49E7A69BDD48
.rar
Lserskarers.exe
.exe windows x86

b78ecf47c0a3e24a6f4af114e2d1f5de

Code Sign

31:55:41:de:6e:24:e7:47
Certificate

Issuer

OU=Presettling Acetylating Kinship\ ,O=Udmanvreredes,L=Ambleville,ST=Île-de-France,C=FR,1.2.840.113549.1.9.1=#0c1c4f766572617373757265646e6573734041666873746564652e42726f

Not Before

14-02-2022 23:20

Not After

13-02-2025 23:20

Subject

OU=Presettling Acetylating Kinship\ ,O=Udmanvreredes,L=Ambleville,ST=Île-de-France,C=FR,1.2.840.113549.1.9.1=#0c1c4f766572617373757265646e6573734041666873746564652e42726f

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

dc:1b:75:97:ec:c5:bf:1a:cd:35:10:a0:15:e6:f7:1c:7c:fe:6c:2e:22:0e:79:7b:cd:93:6b:4b:cb:fa:ba:45
Signer

Actual PE Digest

dc:1b:75:97:ec:c5:bf:1a:cd:35:10:a0:15:e6:f7:1c:7c:fe:6c:2e:22:0e:79:7b:cd:93:6b:4b:cb:fa:ba:45

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

OU=Presettling Acetylating Kinship\ ,O=Udmanvreredes,L=Ambleville,ST=Île-de-France,C=FR,1.2.840.113549.1.9.1=#0c1c4f766572617373757265646e6573734041666873746564652e42726f

17-11-2022 13:30
Valid: false

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

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

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
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
ShellExecuteA
SHFileOperationA

advapi32

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

comctl32

ImageList_Create
ImageList_AddMasked
ImageList_Destroy
ord17

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

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: 105KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 92KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b78ecf47c0a3e24a6f4af114e2d1f5de

Code Sign

31:55:41:de:6e:24:e7:47Certificate

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

dc:1b:75:97:ec:c5:bf:1a:cd:35:10:a0:15:e6:f7:1c:7c:fe:6c:2e:22:0e:79:7b:cd:93:6b:4b:cb:fa:ba:45Signer

Signature Validations

Verification

17-11-2022 13:30 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

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

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

.data Size: 1024B - Virtual size: 105KB

.ndata Size: - Virtual size: 92KB

.rsrc Size: 6KB - Virtual size: 5KB

31:55:41:de:6e:24:e7:47
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

dc:1b:75:97:ec:c5:bf:1a:cd:35:10:a0:15:e6:f7:1c:7c:fe:6c:2e:22:0e:79:7b:cd:93:6b:4b:cb:fa:ba:45
Signer

17-11-2022 13:30
Valid: false

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

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

.data
Size: 1024B - Virtual size: 105KB

.ndata
Size: - Virtual size: 92KB

.rsrc
Size: 6KB - Virtual size: 5KB