london studio pack - Linkvertise Downloader_oK-JH21[.]exe

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General

Target

london studio pack - Linkvertise Downloader_oK-JH21.exe
Size

2.6MB
MD5

22f2152e21c1a73cef5516f6fd1822d8
SHA1

8e447a72b0a3acaf3fc1acdf85e7dcd61e2d647b
SHA256

40136fdd653dff0e20f11851802c864ab49b1637c12b232897eb8dca54c03cbd
SHA512

51b126e93cdaa51d7faa2adde293060887b03e4412fe9e2a1107be80483476749a4f7caa237db069d764f8e8615e6332f9acc7677757b1772a6548ac85eb1e4b
SSDEEP

49152:6qe3f6aSzD7+H98AHaCfu6FHHCL+WuTmuKwEc:TSinD7E9vBu+HCK5NKXc

Score

1^/10

Malware Config

Signatures

Files

london studio pack - Linkvertise Downloader_oK-JH21.exe
.exe windows x86

5a594319a0d69dbc452e748bcf05892e

Code Sign

e4:27:04:95:f6:8c:91:d6:d0:ec:7b:49:4e:a4:df:1c
Certificate

Issuer

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

Not Before

11/09/2018, 09:26

Not After

11/09/2023, 09:26

Subject

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

66:21:bc:d9:f2:98:91:36:36:17:c8:dc:1b:d4:82:4f
Certificate

Issuer

CN=Domain The Net Technologies Ltd CA for Code Signing R2,O=Domain The Net Technologies Ltd,C=IL

Not Before

13/07/2022, 09:59

Not After

12/07/2023, 09:59

Subject

CN=Linkvertise GmbH & Co. KG,O=Linkvertise GmbH & Co. KG,L=Itzehoe,ST=Schleswig-Holstein,C=DE

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

5b:7f:54:38:25:e4:1a:a1:2a:de:21:43:9c:df:e6:6f
Certificate

Issuer

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Not Before

26/03/2019, 17:33

Not After

22/03/2034, 17:33

Subject

CN=SSL.com Code Signing Enterprise Intermediate CA RSA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

5e:1b:74:73:09:52:b1:fa:3e:0d:4a:9c:50:a8:da:be
Certificate

Issuer

CN=SSL.com Code Signing Enterprise Intermediate CA RSA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

Not Before

01/04/2019, 17:10

Not After

30/03/2024, 17:10

Subject

CN=Domain The Net Technologies Ltd CA for Code Signing R2,O=Domain The Net Technologies Ltd,C=IL

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

87:9b:8e:78:2c:8c:72:18:92:79:f0:4d:f9:f9:ef:da:16:1c:de:28:85:70:6a:76:44:f5:da:c4:28:d2:53:c8
Signer

Actual PE Digest

87:9b:8e:78:2c:8c:72:18:92:79:f0:4d:f9:f9:ef:da:16:1c:de:28:85:70:6a:76:44:f5:da:c4:28:d2:53:c8

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Linkvertise GmbH & Co. KG,O=Linkvertise GmbH & Co. KG,L=Itzehoe,ST=Schleswig-Holstein,C=DE

30/03/2023, 10:56
Valid: true

Chain 1

CN=Linkvertise GmbH & Co. KG,O=Linkvertise GmbH & Co. KG,L=Itzehoe,ST=Schleswig-Holstein,C=DE

CN=Domain The Net Technologies Ltd CA for Code Signing R2,O=Domain The Net Technologies Ltd,C=IL

CN=SSL.com Code Signing Enterprise Intermediate CA RSA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

Chain 2

CN=Linkvertise GmbH & Co. KG,O=Linkvertise GmbH & Co. KG,L=Itzehoe,ST=Schleswig-Holstein,C=DE

CN=Domain The Net Technologies Ltd CA for Code Signing R2,O=Domain The Net Technologies Ltd,C=IL

CN=SSL.com Code Signing Enterprise Intermediate CA RSA R1,O=SSL Corp,L=Houston,ST=Texas,C=US

CN=SSL.com Root Certification Authority RSA,O=SSL Corporation,L=Houston,ST=Texas,C=US

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

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Imports

kernel32

GetACP
GetExitCodeProcess
LocalFree
CloseHandle
SizeofResource
VirtualProtect
VirtualFree
GetFullPathNameW
ExitProcess
HeapAlloc
GetCPInfoExW
RtlUnwind
GetCPInfo
GetStdHandle
GetModuleHandleW
FreeLibrary
HeapDestroy
ReadFile
CreateProcessW
GetLastError
GetModuleFileNameW
SetLastError
FindResourceW
CreateThread
CompareStringW
LoadLibraryA
ResetEvent
GetVersion
RaiseException
FormatMessageW
SwitchToThread
GetExitCodeThread
GetCurrentThread
LoadLibraryExW
LockResource
GetCurrentThreadId
UnhandledExceptionFilter
VirtualQuery
VirtualQueryEx
Sleep
EnterCriticalSection
SetFilePointer
LoadResource
SuspendThread
GetTickCount
GetFileSize
GetStartupInfoW
GetFileAttributesW
InitializeCriticalSection
GetThreadPriority
SetThreadPriority
GetCurrentProcess
VirtualAlloc
GetSystemInfo
GetCommandLineW
LeaveCriticalSection
GetProcAddress
ResumeThread
GetVersionExW
VerifyVersionInfoW
HeapCreate
GetWindowsDirectoryW
VerSetConditionMask
GetDiskFreeSpaceW
FindFirstFileW
GetUserDefaultUILanguage
lstrlenW
QueryPerformanceCounter
SetEndOfFile
HeapFree
WideCharToMultiByte
FindClose
MultiByteToWideChar
LoadLibraryW
SetEvent
CreateFileW
GetLocaleInfoW
GetSystemDirectoryW
DeleteFileW
GetLocalTime
GetEnvironmentVariableW
WaitForSingleObject
WriteFile
ExitThread
DeleteCriticalSection
TlsGetValue
GetDateFormatW
SetErrorMode
IsValidLocale
TlsSetValue
CreateDirectoryW
GetSystemDefaultUILanguage
EnumCalendarInfoW
LocalAlloc
GetUserDefaultLangID
RemoveDirectoryW
CreateEventW
SetThreadLocale
GetThreadLocale

comctl32

InitCommonControls

version

GetFileVersionInfoSizeW
VerQueryValueW
GetFileVersionInfoW

user32

CreateWindowExW
TranslateMessage
CharLowerBuffW
CallWindowProcW
CharUpperW
PeekMessageW
GetSystemMetrics
SetWindowLongW
MessageBoxW
DestroyWindow
CharUpperBuffW
CharNextW
MsgWaitForMultipleObjects
LoadStringW
ExitWindowsEx
DispatchMessageW

oleaut32

SysAllocStringLen
SafeArrayPtrOfIndex
VariantCopy
SafeArrayGetLBound
SafeArrayGetUBound
VariantInit
VariantClear
SysFreeString
SysReAllocStringLen
VariantChangeType
SafeArrayCreate

netapi32

NetWkstaGetInfo
NetApiBufferFree

advapi32

RegQueryValueExW
AdjustTokenPrivileges
LookupPrivilegeValueW
RegCloseKey
OpenProcessToken
RegOpenKeyExW

Exports

Exports

TMethodImplementationIntercept
__dbk_fcall_wrapper
dbkFCallWrapperAddr

Sections

.text
Size: 718KB - Virtual size: 717KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 27KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didata
Size: 512B - Virtual size: 420B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 154B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: - Virtual size: 24B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 93B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 134KB - Virtual size: 133KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5a594319a0d69dbc452e748bcf05892e

Code Sign

e4:27:04:95:f6:8c:91:d6:d0:ec:7b:49:4e:a4:df:1cCertificate

Key Usages

66:21:bc:d9:f2:98:91:36:36:17:c8:dc:1b:d4:82:4fCertificate

Extended Key Usages

Key Usages

5b:7f:54:38:25:e4:1a:a1:2a:de:21:43:9c:df:e6:6fCertificate

Extended Key Usages

Key Usages

5e:1b:74:73:09:52:b1:fa:3e:0d:4a:9c:50:a8:da:beCertificate

Extended Key Usages

Key Usages

87:9b:8e:78:2c:8c:72:18:92:79:f0:4d:f9:f9:ef:da:16:1c:de:28:85:70:6a:76:44:f5:da:c4:28:d2:53:c8Signer

Signature Validations

Verification

30/03/2023, 10:56 Valid: true

Chain 1

Chain 2

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

comctl32

version

user32

oleaut32

netapi32

advapi32

Exports

Exports

Sections

.text Size: 718KB - Virtual size: 717KB

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

.data Size: 14KB - Virtual size: 13KB

.bss Size: - Virtual size: 27KB

.idata Size: 4KB - Virtual size: 3KB

.didata Size: 512B - Virtual size: 420B

.edata Size: 512B - Virtual size: 154B

.tls Size: - Virtual size: 24B

.rdata Size: 512B - Virtual size: 93B

.rsrc Size: 134KB - Virtual size: 133KB

e4:27:04:95:f6:8c:91:d6:d0:ec:7b:49:4e:a4:df:1c
Certificate

66:21:bc:d9:f2:98:91:36:36:17:c8:dc:1b:d4:82:4f
Certificate

5b:7f:54:38:25:e4:1a:a1:2a:de:21:43:9c:df:e6:6f
Certificate

5e:1b:74:73:09:52:b1:fa:3e:0d:4a:9c:50:a8:da:be
Certificate

87:9b:8e:78:2c:8c:72:18:92:79:f0:4d:f9:f9:ef:da:16:1c:de:28:85:70:6a:76:44:f5:da:c4:28:d2:53:c8
Signer

30/03/2023, 10:56
Valid: true

.text
Size: 718KB - Virtual size: 717KB

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

.data
Size: 14KB - Virtual size: 13KB

.bss
Size: - Virtual size: 27KB

.idata
Size: 4KB - Virtual size: 3KB

.didata
Size: 512B - Virtual size: 420B

.edata
Size: 512B - Virtual size: 154B

.tls
Size: - Virtual size: 24B

.rdata
Size: 512B - Virtual size: 93B

.rsrc
Size: 134KB - Virtual size: 133KB