aswBoot[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

aswBoot.exe
Size

297KB
MD5

acf0d5e58de3b3dd71ff2dcccc3a824e
SHA1

ff97c36c63267d96d1cdda99cc5de3234ab6e933
SHA256

83e233cd53923613d32295272028835cd837a576f5e3844a5ca8e3116a3dae19
SHA512

c7696a6f9ee9b2341841e177ac05dc34d8c9aeb583de1088b18e328e6af393456ac603dce74ae6a771beefaaba4b18eee96b7be30f085f90c9da26b9df5f2ee8
SSDEEP

6144:XA8riAawwMmouI//5k4Y3VYOct18xzYiYX:LiA9wMzuI//5kRtct18xzY1X

Score

1^/10

Malware Config

Signatures

Files

aswBoot.exe
.sys windows:6 windows x86 arch:x86

87aa79411d870321373f43de4c5a4c48

Code Sign

01:e9:39:99:f3:87:1d:10:91:dc:1e:8d:58:b8:d4:05
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

16/05/2017, 00:00

Not After

24/06/2020, 12:00

Subject

CN=AVAST Software s.r.o.,O=AVAST Software s.r.o.,L=Praha 4,C=CZ

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/10/2013, 12:00

Not After

22/10/2028, 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

61:1c:b2:8a:00:00:00:00:00:26
Certificate

Issuer

CN=Microsoft Code Verification Root,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

15/04/2011, 19:41

Not After

15/04/2021, 19:51

Subject

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

09:c0:fc:46:c8:04:42:13:b5:59:8b:af:28:4f:4e:41
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

04/01/2017, 00:00

Not After

18/01/2028, 00:00

Subject

CN=DigiCert SHA2 Timestamp Responder,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

9f:a9:ab:33:a9:6b:5b:70:92:0d:1c:51:ea:b4:a7:86:37:5c:38:69:62:5d:21:a8:fd:66:22:6e:a2:30:c2:77
Signer

Actual PE Digest

9f:a9:ab:33:a9:6b:5b:70:92:0d:1c:51:ea:b4:a7:86:37:5c:38:69:62:5d:21:a8:fd:66:22:6e:a2:30:c2:77

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

D:\BUILD\work\00\9f900bb44422fce3\BUILDS\Release\x86\aswBootLdr.pdb

Imports

ntdll

wcschr
_wcsnicmp
NtSetInformationProcess
memset
wcsrchr
wcstoul
_wcsicmp
_snwprintf
strtoul
RtlCreateHeap
RtlAllocateHeap
RtlReAllocateHeap
RtlFreeHeap
NtTerminateProcess
_strnicmp
NtQuerySystemTime
_ultow
_ultoa
RtlEnterCriticalSection
RtlLeaveCriticalSection
RtlInitializeCriticalSection
RtlDeleteCriticalSection
RtlRaiseException
RtlInitUnicodeString
LdrGetDllHandle
RtlInitAnsiString
LdrGetProcedureAddress
NtQuerySystemInformation
NtQueryPerformanceCounter
RtlUnwind
memmove
wcsstr
wcsncmp
NtCreateFile
NtQueryInformationFile
NtSetInformationFile
NtOpenFile
NtClose
NtReadFile
NtDelayExecution
wcsncpy
NtCreateSection
NtMapViewOfSection
NtUnmapViewOfSection
NtDuplicateObject
NtQueryAttributesFile
NtQueryInformationProcess
RtlExpandEnvironmentStrings_U
LdrFindEntryForAddress
LdrLoadDll
LdrUnloadDll
NtOpenKey
NtQueryValueKey
NtDeviceIoControlFile
RtlAnsiStringToUnicodeString
RtlMultiByteToUnicodeSize
RtlMultiByteToUnicodeN
RtlQueryEnvironmentVariable_U
strncpy
NtCreateDirectoryObject
NtFreeVirtualMemory
NtAllocateVirtualMemory
RtlCreateSecurityDescriptor
RtlSetDaclSecurityDescriptor
_snprintf
qsort
_CIpow
_alldiv
_allmul
_aulldiv
_aullrem
_chkstk
memchr
memcpy

Sections

.text
Size: 205KB - Virtual size: 204KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 74KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 888B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.reloc
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

87aa79411d870321373f43de4c5a4c48

Code Sign

01:e9:39:99:f3:87:1d:10:91:dc:1e:8d:58:b8:d4:05Certificate

Extended Key Usages

Key Usages

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

61:1c:b2:8a:00:00:00:00:00:26Certificate

Key Usages

09:c0:fc:46:c8:04:42:13:b5:59:8b:af:28:4f:4e:41Certificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

9f:a9:ab:33:a9:6b:5b:70:92:0d:1c:51:ea:b4:a7:86:37:5c:38:69:62:5d:21:a8:fd:66:22:6e:a2:30:c2:77Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

ntdll

Sections

.text Size: 205KB - Virtual size: 204KB

.rdata Size: 74KB - Virtual size: 74KB

.data Size: 512B - Virtual size: 7KB

.rsrc Size: 1024B - Virtual size: 888B

.reloc Size: 7KB - Virtual size: 7KB

01:e9:39:99:f3:87:1d:10:91:dc:1e:8d:58:b8:d4:05
Certificate

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

61:1c:b2:8a:00:00:00:00:00:26
Certificate

09:c0:fc:46:c8:04:42:13:b5:59:8b:af:28:4f:4e:41
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

9f:a9:ab:33:a9:6b:5b:70:92:0d:1c:51:ea:b4:a7:86:37:5c:38:69:62:5d:21:a8:fd:66:22:6e:a2:30:c2:77
Signer

.text
Size: 205KB - Virtual size: 204KB

.rdata
Size: 74KB - Virtual size: 74KB

.data
Size: 512B - Virtual size: 7KB

.rsrc
Size: 1024B - Virtual size: 888B

.reloc
Size: 7KB - Virtual size: 7KB