sakula | 18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1

General

Target

18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe
Size

36KB
MD5

a8706e1e2905b556a927049b716c4e85
SHA1

0729083d60cd6fd0ac3e5d0f00ac5781daeec951
SHA256

18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1
SHA512

b88050f01d73b8dd3074815275ea3ea7aa065dc1ddd4d7e2d5a96bfd5882a3bfc9e728f6994a07e67f668ed884217b12c19239b5c156c0105a677470f84212f5

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

2472 MediaCenter.exe

pid	process
2472	MediaCenter.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe"	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe

Drops file in Windows directory 2 IoCs

Processes:

TiWorker.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

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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 46 IoCs

Processes:

svchost.exe

description	ioc	process
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\DownloadMonthlyInternetBytes = "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\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 (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 = "0.000000"	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\DownloadMonthlyCacheHostBytes = "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\NormalDownloadCount = "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\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4140"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	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\DownloadMonthlyLinkLocalBytes = "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\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\BkDownloadRatePct = "45"	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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.554446"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.153669"	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\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4164"	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\DownloadMonthlyRateFrBps = "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\LinkLocalConnectionCount = "0"	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
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	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\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	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\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "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\Usage\UploadCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2312 PING.EXE

pid	process
2312	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe
Token: SeBackupPrivilege	1940	TiWorker.exe
Token: SeRestorePrivilege	1940	TiWorker.exe
Token: SeSecurityPrivilege	1940	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.execmd.exe

description	pid	process	target process
PID 4020 wrote to memory of 2472	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe	MediaCenter.exe
PID 4020 wrote to memory of 2472	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe	MediaCenter.exe
PID 4020 wrote to memory of 2472	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe	MediaCenter.exe
PID 4020 wrote to memory of 316	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe	cmd.exe
PID 4020 wrote to memory of 316	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe	cmd.exe
PID 4020 wrote to memory of 316	4020	18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe	cmd.exe
PID 316 wrote to memory of 2312	316	cmd.exe	PING.EXE
PID 316 wrote to memory of 2312	316	cmd.exe	PING.EXE
PID 316 wrote to memory of 2312	316	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe
"C:\Users\Admin\AppData\Local\Temp\18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4020

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2472

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18cb1838712cca78768c5381ec120642f5c66b370291b258dc90cf372ad0caf1.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:316

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2312

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:680

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:2940

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:1940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

MD5
f269ade6b260c928c77fcd12fafdcb30

SHA1
aeeb2735ad8c6c7d042e8b995c8dfbf3ead2513c

SHA256
311328542586022109cb0bc86d303a517df5dabb4e09522f595da0f575e63a4f

SHA512
34b1c8d902144a8d4cc041a33b7a444f652e4d733ec80d15c5fddc68893dd118b6c78c3cf912d16c2c2a4281192610addc5f614cdee227243b3f6f07e65611dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

MD5
f269ade6b260c928c77fcd12fafdcb30

SHA1
aeeb2735ad8c6c7d042e8b995c8dfbf3ead2513c

SHA256
311328542586022109cb0bc86d303a517df5dabb4e09522f595da0f575e63a4f

SHA512
34b1c8d902144a8d4cc041a33b7a444f652e4d733ec80d15c5fddc68893dd118b6c78c3cf912d16c2c2a4281192610addc5f614cdee227243b3f6f07e65611dc

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads