lync[.]exe | Triage

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General

Target

lync.exe
Size

1.9MB
MD5

76481626cf4949e3b8ac3705b3c7fa94
SHA1

bbe85b9f495ccd213699133edc781b8cca6e2f78
SHA256

5f70a0f0347cec1c72331cc11c6217c7ff808f6b7f5e045257fe4920f3a4ead7
SHA512

7d25a7c96f7f67d33b527cb4c78ff32227750f2b9b49c2c9a074886dfc9b19b1c5d646644158cf6c99e2707c45521888432b9b34db917972540e71f4b15ac0d8
SSDEEP

24576:ZnXkGOv77EQoF/mN822GjF24/PGqbnD8rZSLuWIhjviX:9kGOv77EDmNeGjrYhjC

Score

1^/10

Malware Config

Signatures

Files

lync.exe
.exe windows:6 windows x64 arch: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

3f:42:24:95:5f:10:90:77:ee:49:62:9e:bf:8b:9c:2d:ba:b9:90:53:ef:f7:ed:e6:4b:21:84:b6:9e:d3:fc:74
Signer

Actual PE Digest

3f:42:24:95:5f:10:90:77:ee:49:62:9e:bf:8b:9c:2d:ba:b9:90:53:ef:f7:ed:e6:4b:21:84:b6:9e:d3:fc:74

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: 732KB - Virtual size: 731KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.0MB - Virtual size: 1.0MB

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

3f:42:24:95:5f:10:90:77:ee:49:62:9e:bf:8b:9c:2d:ba:b9:90:53:ef:f7:ed:e6:4b:21:84:b6:9e:d3:fc:74Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 732KB - Virtual size: 731KB

.rdata Size: 1.0MB - Virtual size: 1.0MB

.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

3f:42:24:95:5f:10:90:77:ee:49:62:9e:bf:8b:9c:2d:ba:b9:90:53:ef:f7:ed:e6:4b:21:84:b6:9e:d3:fc:74
Signer

.text
Size: 732KB - Virtual size: 731KB

.rdata
Size: 1.0MB - Virtual size: 1.0MB

.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