Overview
overview
3Static
static
3MandiantEn...dio.7z
windows7-x64
3MandiantEn...dio.7z
windows10-2004-x64
3IntelAudioService.dll
windows7-x64
1IntelAudioService.dll
windows10-2004-x64
1IntelAudioService.exe
windows7-x64
1IntelAudioService.exe
windows10-2004-x64
1IntelAudio...config
windows7-x64
3IntelAudio...config
windows10-2004-x64
3Static task
static1
Behavioral task
behavioral1
Sample
MandiantEngagementIntelAudio.7z
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
MandiantEngagementIntelAudio.7z
Resource
win10v2004-20230915-en
Behavioral task
behavioral3
Sample
IntelAudioService.dll
Resource
win7-20230831-en
Behavioral task
behavioral4
Sample
IntelAudioService.dll
Resource
win10v2004-20230915-en
Behavioral task
behavioral5
Sample
IntelAudioService.exe
Resource
win7-20230831-en
Behavioral task
behavioral6
Sample
IntelAudioService.exe
Resource
win10v2004-20230915-en
Behavioral task
behavioral7
Sample
IntelAudioService.exe.config
Resource
win7-20230831-en
Behavioral task
behavioral8
Sample
IntelAudioService.exe.config
Resource
win10v2004-20230915-en
General
-
Target
MandiantEngagementIntelAudio.7z
-
Size
630KB
-
MD5
7d8f3cc7dd022adef6fc8d7dfe308847
-
SHA1
93599216ad58d501568c52c7014ad6f7fdb2561a
-
SHA256
5e236acff828a79b31f44e491d8c4932a3eb6688ce83d24ed7f59fa69117cb6e
-
SHA512
bc49f6e252bcb9aed5ded9c38d55c8370c1af74b89e97e4447eae63dde3f46c5bd485dba4d6f01887fab037ddbf06eea7e8370f3d310a5df0832b4848fba3e9a
-
SSDEEP
12288:yZrSiKCzrslrSexLyVGUOo4Pmbu1xN55WzpinfBwtVW7Afcoy1v3:4ZKCzrs4edyVGskv5WViJgV65oI
Malware Config
Signatures
-
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack002/IntelAudioService.dll unpack004/IntelAudioService.exe
Files
-
MandiantEngagementIntelAudio.7z.7z
Password: infected
-
IntelAudioService.dll.7z.7z
Password: infected
-
IntelAudioService.dll.dll windows x86
Password: infected
dae02f32a21e03ce65412f6e56942daa
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
mscoree
_CorDllMain
Sections
.text Size: 3.4MB - Virtual size: 3.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.sdata Size: 512B - Virtual size: 64B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 748B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
IntelAudioService.exe.7z.7z
Password: infected
-
IntelAudioService.exe.exe windows x64
Password: infected
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
.text Size: 373KB - Virtual size: 372KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
-
IntelAudioService.exe.config.7z.7z
Password: infected
-
IntelAudioService.exe.config