lync[.]exe | Triage

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General

Target

lync.exe
Size

1.8MB
MD5

aa97e75d3ad22298f1e0c190ffe61896
SHA1

7c5eede444bbde1ff063ce32c2b502dd02a18639
SHA256

491bc83f7f5406ce82591aa4df29907392bbb68726b2ae8b2a1417bd67053268
SHA512

cc62005fa7b37d399b333c5a1dc2d2a91d79a11f2aaf2542ee2bb2b676e53bd7772ec5313da1433d1caabee25bb410c4de69cefac3c9598c6b11c921fe1c8350
SSDEEP

24576:a+8IqTworxFJacFnXunjjOcnvzxRoRcFxh0fxM/Rxx0:kl8orn3FijjbXvh0pF

Score

1^/10

Malware Config

Signatures

Files

lync.exe
.exe windows:6 windows x64

4f2f006e2ecf7172ad368f8289dc96c1

Code Sign

33:00:03:e2:cd:10:66:ad:8d:b8:1c:06:08:00:00:00:03:e2:cd
Certificate

Issuer

CN=Microsoft Azure RSA TLS Issuing CA 07

Not Before

14/09/2023, 17:24

Not After

08/09/2024, 17:24

Subject

CN=www.microsoft.com

Extended Key Usages

ExtKeyUsageServerAuth
ExtKeyUsageClientAuth

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign

d0:57:10:ff:f9:e8:dc:8d:ed:63:dd:a7:7e:a8:46:15:33:83:ee:3a:3a:76:b7:d1:24:d4:58:35:93:32:d8:ea
Signer

Actual PE Digest

d0:57:10:ff:f9:e8:dc:8d:ed:63:dd:a7:7e:a8:46:15:33:83:ee:3a:3a:76:b7:d1:24:d4:58:35:93:32:d8:ea

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: 728KB - Virtual size: 727KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 920KB - Virtual size: 919KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 86KB - Virtual size: 435KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 19KB - Virtual size: 19KB

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: 16KB - Virtual size: 16KB

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

33:00:03:e2:cd:10:66:ad:8d:b8:1c:06:08:00:00:00:03:e2:cdCertificate

Extended Key Usages

Key Usages

d0:57:10:ff:f9:e8:dc:8d:ed:63:dd:a7:7e:a8:46:15:33:83:ee:3a:3a:76:b7:d1:24:d4:58:35:93:32:d8:eaSigner

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 728KB - Virtual size: 727KB

.rdata Size: 920KB - Virtual size: 919KB

.data Size: 86KB - Virtual size: 435KB

.pdata Size: 19KB - Virtual size: 19KB

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

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

.reloc Size: 16KB - Virtual size: 16KB

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

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

33:00:03:e2:cd:10:66:ad:8d:b8:1c:06:08:00:00:00:03:e2:cd
Certificate

d0:57:10:ff:f9:e8:dc:8d:ed:63:dd:a7:7e:a8:46:15:33:83:ee:3a:3a:76:b7:d1:24:d4:58:35:93:32:d8:ea
Signer

.text
Size: 728KB - Virtual size: 727KB

.rdata
Size: 920KB - Virtual size: 919KB

.data
Size: 86KB - Virtual size: 435KB

.pdata
Size: 19KB - Virtual size: 19KB

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

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

.reloc
Size: 16KB - Virtual size: 16KB

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

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