unpack[.]dll | Triage

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General

Target

unpack.dll
Size

83KB
MD5

4846c8811e9a889e93c186977d0dd364
SHA1

125d3444c7bde4b9dff4390e60c1cf02dd590adf
SHA256

985517452ffad2573620010d19bfd4769c83bf8bd546b846caccec536c985576
SHA512

5ec4bd43e54197193aad53c4c0845a7bac01906650aa28321b27a75191dd30ee780f3660d0a8e9bf4bea3d3fdc0c24fe848a654d1bc23f81d31a5e3919776a6d
SSDEEP

1536:MS4pGBcFKWNenh+OhuhCnJhuRI2v0DuvHIvbUVuZKw/VqbIQ8FymGa+4Dj:M7psw2huoriI2v0DuvHIvbUVuZKw/Vqw

Score

1^/10

Malware Config

Signatures

Files

unpack.dll
.dll windows x64

b764596a035a2ec02037d5096bba8b95

Code Sign

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

0b:57:4a:41:07:aa:92:e5:9f:28:78:61:b0:2a:6e:c5
Certificate

Issuer

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

Not Before

20/03/2020, 00:00

Not After

18/06/2023, 12:00

Subject

CN=Azul Systems\, Inc.,O=Azul Systems\, Inc.,L=Sunnyvale,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9d
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

29/03/2022, 00:00

Not After

14/03/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

60:a8:9d:09:f0:3e:df:a1:e4:d9:34:6a:cf:2c:a8:b5:ba:50:57:b4:66:99:1e:63:eb:2c:7c:12:2c:66:52:7d
Signer

Actual PE Digest

60:a8:9d:09:f0:3e:df:a1:e4:d9:34:6a:cf:2c:a8:b5:ba:50:57:b4:66:99:1e:63:eb:2c:7c:12:2c:66:52:7d

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Azul Systems\, Inc.,O=Azul Systems\, Inc.,L=Sunnyvale,ST=California,C=US

21/04/2022, 12:57
Valid: true

Chain 1

CN=Azul Systems\, Inc.,O=Azul Systems\, Inc.,L=Sunnyvale,ST=California,C=US

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

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

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

jvm

JNI_GetCreatedJavaVMs

java

JNU_ThrowIOException

kernel32

InitializeSListHead
IsDebuggerPresent
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
DisableThreadLibraryCalls

vcruntime140

__std_exception_destroy
__std_type_info_destroy_list
__std_exception_copy
_CxxThrowException
memcmp
memcpy
memset
strchr
__C_specific_handler

api-ms-win-crt-heap-l1-1-0

free
realloc
malloc
_callnewh

api-ms-win-crt-stdio-l1-1-0

__stdio_common_vsprintf
__stdio_common_vfprintf
fopen
__acrt_iob_func

api-ms-win-crt-string-l1-1-0

strcmp
strlen
strncat
strcat

api-ms-win-crt-utility-l1-1-0

qsort

api-ms-win-crt-convert-l1-1-0

atoi

api-ms-win-crt-time-l1-1-0

_time64

api-ms-win-crt-runtime-l1-1-0

_initterm
_seh_filter_dll
_configure_narrow_argv
_cexit
_initialize_onexit_table
_execute_onexit_table
_initterm_e
abort
_initialize_narrow_environment

Exports

Exports

Java_com_sun_java_util_jar_pack_NativeUnpack_finish
Java_com_sun_java_util_jar_pack_NativeUnpack_getNextFile
Java_com_sun_java_util_jar_pack_NativeUnpack_getOption
Java_com_sun_java_util_jar_pack_NativeUnpack_getUnusedInput
Java_com_sun_java_util_jar_pack_NativeUnpack_initIDs
Java_com_sun_java_util_jar_pack_NativeUnpack_setOption
Java_com_sun_java_util_jar_pack_NativeUnpack_start

Sections

.text
Size: 51KB - Virtual size: 50KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 17KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 900B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 388B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b764596a035a2ec02037d5096bba8b95

Code Sign

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

Extended Key Usages

Key Usages

0b:57:4a:41:07:aa:92:e5:9f:28:78:61:b0:2a:6e:c5Certificate

Extended Key Usages

Key Usages

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9dCertificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

60:a8:9d:09:f0:3e:df:a1:e4:d9:34:6a:cf:2c:a8:b5:ba:50:57:b4:66:99:1e:63:eb:2c:7c:12:2c:66:52:7dSigner

Signature Validations

Verification

21/04/2022, 12:57 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Imports

jvm

java

kernel32

vcruntime140

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-runtime-l1-1-0

Exports

Exports

Sections

.text Size: 51KB - Virtual size: 50KB

.rdata Size: 17KB - Virtual size: 17KB

.data Size: 3KB - Virtual size: 5KB

.pdata Size: 2KB - Virtual size: 1KB

.rsrc Size: 1024B - Virtual size: 900B

.reloc Size: 512B - Virtual size: 388B

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

0b:57:4a:41:07:aa:92:e5:9f:28:78:61:b0:2a:6e:c5
Certificate

0a:7a:4a:88:9e:c9:99:42:90:06:63:38:4d:86:97:9d
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

60:a8:9d:09:f0:3e:df:a1:e4:d9:34:6a:cf:2c:a8:b5:ba:50:57:b4:66:99:1e:63:eb:2c:7c:12:2c:66:52:7d
Signer

21/04/2022, 12:57
Valid: true

.text
Size: 51KB - Virtual size: 50KB

.rdata
Size: 17KB - Virtual size: 17KB

.data
Size: 3KB - Virtual size: 5KB

.pdata
Size: 2KB - Virtual size: 1KB

.rsrc
Size: 1024B - Virtual size: 900B

.reloc
Size: 512B - Virtual size: 388B