620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77

General

Target

620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77.exe
Size

107KB
MD5

0572b2985ec70a37642e6a5513a098c2
SHA1

686116cf6308871a8c7e79e2d305093e04a60476
SHA256

620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77
SHA512

43b58d5bdebae446bca36b9a08a3e71d7ffb8f05beb2a05e26d74bf1093f73171e33cf645a1379ce88e766227c5e4b103567e81594288a9664745bc6a39522b6

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Modifies data under HKEY_USERS 49 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4216"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.235373"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132899120428342428"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "9.615730"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe

description	pid	process
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe
Token: SeRestorePrivilege	1784	TiWorker.exe
Token: SeSecurityPrivilege	1784	TiWorker.exe
Token: SeBackupPrivilege	1784	TiWorker.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77.exe

description	pid	process	target process
PID 1508 wrote to memory of 1800	1508	620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77.exe	fondue.exe
PID 1508 wrote to memory of 1800	1508	620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77.exe	fondue.exe

C:\Users\Admin\AppData\Local\Temp\620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77.exe
"C:\Users\Admin\AppData\Local\Temp\620b8057f975eb2475b9a5a0756f21d4b866acc1f02c418ee3d994b74ee6bb77.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\system32\fondue.exe
"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll
2⤵
PID:1800

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1784

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3768

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:2912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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