lync[.]exe | Triage

Sharing

Copy URL

Twitter E-mail

General

Target

lync.exe
Size

1.8MB
MD5

fcae4580100f47cb37a0d84fb3ef915b
SHA1

139732c61d19b68d76ee9ec78fcbb4a6738fe5ab
SHA256

591e2c4cb585e82caffcadd920a8592f1852f6e869584ce1a6a7e5cc24672e0d
SHA512

27eeef91c65aad57e700010e3d6aaf8396f46a0edf8e756f5fe2c9b05980d7bd5b71d1bfac5ee27d24e0e5f4f1060811888acb19fded049692fa393ef21d64ab
SSDEEP

24576:cR2/LomdfNNNsAdQ5BjaYTYe5kVeaQh2Yvg5gEYep9:3joWfFsbjapG9h2Y29

Score

1^/10

Malware Config

Signatures

Files

lync.exe
.exe windows:6 windows x64

4f2f006e2ecf7172ad368f8289dc96c1

Code Sign

43:1a:ae:e7:0c:bb:f9:92:11:77:b0:02:02:b7:76:ea
Certificate

Issuer

CN=GTS CA 1P5

Not Before

10-08-2023 18:18

Not After

08-11-2023 19:17

Subject

CN=riverford.co.uk

Extended Key Usages

ExtKeyUsageServerAuth
ExtKeyUsageClientAuth

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign

f7:ac:f0:13:d0:95:cb:f5:f7:25:7d:b1:f4:32:3f:9a:4a:48:8c:14:70:68:d1:d0:7e:57:9f:23:20:a6:b0:a9
Signer

Actual PE Digest

f7:ac:f0:13:d0:95:cb:f5:f7:25:7d:b1:f4:32:3f:9a:4a:48:8c:14:70:68:d1:d0:7e:57:9f:23:20:a6:b0:a9

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

WriteFile
WriteConsoleW
WerSetFlags
WerGetFlags
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
RaiseFailFastException
PostQueuedCompletionStatus
LoadLibraryW
LoadLibraryExW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetErrorMode
GetEnvironmentStringsW
GetCurrentThreadId
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler

Sections

.text
Size: 804KB - Virtual size: 804KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 925KB - Virtual size: 925KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 95KB - Virtual size: 444KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 21KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 512B - Virtual size: 168B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 18KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 22KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4f2f006e2ecf7172ad368f8289dc96c1

Code Sign

43:1a:ae:e7:0c:bb:f9:92:11:77:b0:02:02:b7:76:eaCertificate

Extended Key Usages

Key Usages

f7:ac:f0:13:d0:95:cb:f5:f7:25:7d:b1:f4:32:3f:9a:4a:48:8c:14:70:68:d1:d0:7e:57:9f:23:20:a6:b0:a9Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 804KB - Virtual size: 804KB

.rdata Size: 925KB - Virtual size: 925KB

.data Size: 95KB - Virtual size: 444KB

.pdata Size: 21KB - Virtual size: 21KB

.xdata Size: 512B - Virtual size: 168B

.idata Size: 1KB - Virtual size: 1KB

.reloc Size: 18KB - Virtual size: 17KB

.symtab Size: 512B - Virtual size: 4B

.rsrc Size: 22KB - Virtual size: 22KB

43:1a:ae:e7:0c:bb:f9:92:11:77:b0:02:02:b7:76:ea
Certificate

f7:ac:f0:13:d0:95:cb:f5:f7:25:7d:b1:f4:32:3f:9a:4a:48:8c:14:70:68:d1:d0:7e:57:9f:23:20:a6:b0:a9
Signer

.text
Size: 804KB - Virtual size: 804KB

.rdata
Size: 925KB - Virtual size: 925KB

.data
Size: 95KB - Virtual size: 444KB

.pdata
Size: 21KB - Virtual size: 21KB

.xdata
Size: 512B - Virtual size: 168B

.idata
Size: 1KB - Virtual size: 1KB

.reloc
Size: 18KB - Virtual size: 17KB

.symtab
Size: 512B - Virtual size: 4B

.rsrc
Size: 22KB - Virtual size: 22KB