C4Loader[.]exe

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General

Target

C4Loader.exe
Size

266KB
MD5

e1485de9150145a77ff726b37d990d54
SHA1

653d96b1e23f967c15c29fce6814feb8f502ec76
SHA256

401b0cbd978b693044d3dcc8e9e790d95a6cfa1584108f72986837c32a6ffbd5
SHA512

3890822ccd8389b35c80084ead3edc938983a26ae6a2b07c5d53313cda87d66396ea22379907cccd91ecfbc6769fff0cfd1478edc33ae802edf44ccc69ad1316
SSDEEP

6144:NmVCb24pz9/D9pNGie/6hjj/+5fS7tRn9W1U8sc:PZ979pNGie/65jES7N4

Score

N/A

Malware Config

Signatures

Files

C4Loader.exe
.exe windows x86

2a81b6ebaf09a8103e7d79617bf9c3ed

Code Sign

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

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

Not Before

01/01/2021, 00:00

Not After

06/01/2031, 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,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

61:20:4d:b4:00:00:00:00:00:27
Certificate

Issuer

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

Not Before

15/04/2011, 19:45

Not After

15/04/2021, 19:55

Subject

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:64:96:2e:44:67:ed:cc:15:79:64:6b:73:37:ec:8c
Certificate

Issuer

CN=DigiCert EV Code Signing CA (SHA2),OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/04/2019, 00:00

Not After

11/01/2022, 12:00

Subject

SERIALNUMBER=23638777,CN=ASUSTeK Computer Inc.,O=ASUSTeK Computer Inc.,L=Taipei City,C=TW,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025457

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

03:f1:b4:e1:5f:3a:82:f1:14:96:78:b3:d7:d8:47:5c
Certificate

Issuer

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

18/04/2012, 12:00

Not After

18/04/2027, 12:00

Subject

CN=DigiCert EV Code Signing CA (SHA2),OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

8f:10:2a:c7:fa:a2:4e:85:64:31:29:0b:48:2e:06:01:d8:26:77:b4:d6:3e:c2:59:dd:81:51:09:2b:7c:5b:9e
Signer

Actual PE Digest

8f:10:2a:c7:fa:a2:4e:85:64:31:29:0b:48:2e:06:01:d8:26:77:b4:d6:3e:c2:59:dd:81:51:09:2b:7c:5b:9e

Digest Algorithm

sha256

PE Digest Matches

false

Signature Validations

Trusted

true

Verification

Signing Certificate

SERIALNUMBER=23638777,CN=ASUSTeK Computer Inc.,O=ASUSTeK Computer Inc.,L=Taipei City,C=TW,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025457

25/08/2021, 05:03
Valid: true

Chain 1

SERIALNUMBER=23638777,CN=ASUSTeK Computer Inc.,O=ASUSTeK Computer Inc.,L=Taipei City,C=TW,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025457

CN=DigiCert EV Code Signing CA (SHA2),OU=www.digicert.com,O=DigiCert Inc,C=US

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

CloseHandle
CreateSemaphoreW
DeleteCriticalSection
EnterCriticalSection
GetConsoleWindow
GetCurrentThreadId
GetLastError
GetModuleHandleW
GetProcAddress
GetStartupInfoA
GetSystemInfo
InitializeCriticalSection
IsDBCSLeadByteEx
LeaveCriticalSection
MultiByteToWideChar
ReleaseSemaphore
SetLastError
SetUnhandledExceptionFilter
Sleep
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
VirtualAlloc
VirtualProtect
VirtualQuery
WaitForSingleObject
WideCharToMultiByte

msvcrt

__getmainargs
__initenv
__lconv_init
__mb_cur_max
__p__acmdln
__p__commode
__p__fmode
__set_app_type
__setusermatherr
_amsg_exit
_cexit
_errno
_initterm
_iob
_lock
_onexit
_unlock
abort
atoi
calloc
exit
fprintf
fputc
fputs
free
fwrite
localeconv
malloc
memchr
memcmp
memcpy
memmove
memset
realloc
setlocale
signal
strchr
strcmp
strerror
strlen
strncmp
vfprintf
wcslen
_write
_read
_close

user32

ShowWindow

Sections

.text
Size: 231KB - Virtual size: 231KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 52B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2a81b6ebaf09a8103e7d79617bf9c3ed

Code Sign

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

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

61:20:4d:b4:00:00:00:00:00:27Certificate

Key Usages

0c:64:96:2e:44:67:ed:cc:15:79:64:6b:73:37:ec:8cCertificate

Extended Key Usages

Key Usages

03:f1:b4:e1:5f:3a:82:f1:14:96:78:b3:d7:d8:47:5cCertificate

Extended Key Usages

Key Usages

8f:10:2a:c7:fa:a2:4e:85:64:31:29:0b:48:2e:06:01:d8:26:77:b4:d6:3e:c2:59:dd:81:51:09:2b:7c:5b:9eSigner

Signature Validations

Verification

25/08/2021, 05:03 Valid: true

Chain 1

Headers

File Characteristics

Imports

kernel32

msvcrt

user32

Sections

.text Size: 231KB - Virtual size: 231KB

.data Size: 8KB - Virtual size: 7KB

.rdata Size: 12KB - Virtual size: 12KB

.bss Size: - Virtual size: 2KB

.idata Size: 2KB - Virtual size: 2KB

.CRT Size: 512B - Virtual size: 52B

.tls Size: 512B - Virtual size: 8B

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

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

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

61:20:4d:b4:00:00:00:00:00:27
Certificate

0c:64:96:2e:44:67:ed:cc:15:79:64:6b:73:37:ec:8c
Certificate

03:f1:b4:e1:5f:3a:82:f1:14:96:78:b3:d7:d8:47:5c
Certificate

8f:10:2a:c7:fa:a2:4e:85:64:31:29:0b:48:2e:06:01:d8:26:77:b4:d6:3e:c2:59:dd:81:51:09:2b:7c:5b:9e
Signer

25/08/2021, 05:03
Valid: true

.text
Size: 231KB - Virtual size: 231KB

.data
Size: 8KB - Virtual size: 7KB

.rdata
Size: 12KB - Virtual size: 12KB

.bss
Size: - Virtual size: 2KB

.idata
Size: 2KB - Virtual size: 2KB

.CRT
Size: 512B - Virtual size: 52B

.tls
Size: 512B - Virtual size: 8B

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