77c5062163c29fc069bf6b25d78284461f71028f3b688e0ac88397038e59f5ce

General

Target

SC10641.xlsx
Size

165KB
MD5

11aac7b8fe45c352c86c50c440ec5194
SHA1

dae10515c53dc33378e7b5cc6e8b32b380d61c98
SHA256

77c5062163c29fc069bf6b25d78284461f71028f3b688e0ac88397038e59f5ce
SHA512

84cf52f480a05a3f216b27d6db7a7e73c5bc1196650e31f6cdbe2c30396f8262cc49aaa0f466758e334ee6658a8872ad42baf7e484d67e1724551a15667d62bf

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 3 IoCs

Processes:

svchost.exeTiWorker.exe

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

Checks processor information in registry 2 TTPs 5 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXEMusNotifyIcon.exe

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies data under HKEY_USERS 50 IoCs

Processes:

svchost.exe

description	ioc	process
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\DownloadMonthlyCacheHostBytes = "0"	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\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\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	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\UploadMonthlyLanBytes = "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 (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\UplinkBps = "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 (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\DownloadMonthlyGroupBytes = "0"	svchost.exe
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\UplinkUsageBps = "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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "9.091121"	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\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	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\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "7.407222"	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\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132898565766731351"	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\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	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\PeerInfoCount = "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\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3952"	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\DownloadMonthlyRateFrBps = "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\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4280"	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\DownloadMonthlyCdnBytes = "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\MemoryUsageKB = "4072"	svchost.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1248 EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe

description	pid	process
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe
Token: SeRestorePrivilege	2740	TiWorker.exe
Token: SeSecurityPrivilege	2740	TiWorker.exe
Token: SeBackupPrivilege	2740	TiWorker.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE
1248	EXCEL.EXE

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SC10641.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1248

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1420

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:3264

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:2740

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1248-130-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-131-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-132-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-133-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-134-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-135-0x00007FFB54A8D000-0x00007FFB54A8E000-memory.dmp

Filesize
4KB

Download
memory/1248-136-0x00007FFB54A90000-0x00007FFB54A91000-memory.dmp

Filesize
4KB

Download
memory/1248-178-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-179-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-181-0x00007FFB54A8D000-0x00007FFB54A8E000-memory.dmp

Filesize
4KB

Download
memory/1248-180-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download
memory/1248-182-0x00007FFB14A70000-0x00007FFB14A80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads