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
3Analysis
-
max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
18/09/2023, 20:38
Static 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
IntelAudioService.exe.config
-
Size
308B
-
MD5
e672c208b899e19473840b0a0e0fd6f4
-
SHA1
0e72b1ac55a6f2097578b02799a94c314d1e98ca
-
SHA256
b880e615bfb2a6c187aff785c6558664b2f905d1179f034b545d693b71c073cc
-
SHA512
ca23958533d956064f60da79bd3811b967b8cdaa60e73b054405bed971ed74af07993349995f7f21eb489501425e4b3b8e7626dea4e7252d799b34e578d92b2b
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-686452656-3203474025-4140627569-1000_Classes\Local Settings cmd.exe -
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
pid Process 2500 AcroRd32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2500 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2500 AcroRd32.exe 2500 AcroRd32.exe 2500 AcroRd32.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1732 wrote to memory of 2500 1732 cmd.exe 29 PID 1732 wrote to memory of 2500 1732 cmd.exe 29 PID 1732 wrote to memory of 2500 1732 cmd.exe 29 PID 1732 wrote to memory of 2500 1732 cmd.exe 29
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\IntelAudioService.exe.config1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\IntelAudioService.exe.config"2⤵
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2500
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD509803ddb36a5c731e3b9a27a35cbdadd
SHA18d941616ecd46674d42c5576b5ff57be3f0a38cf
SHA2561ee6f6efb243fb3a853518e96a06e57ebf761b57682f404af5adb8c05145414d
SHA5124f90c8a1048067843014e9af32414727f2e46d0af457a13c86f3d5702ec589ec7a9e0930927d557444fc1f424fba7966ea12a27907ea9b96ce18e795dc2e76d2