sakula | 155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804

General

Target

155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe
Size

100KB
MD5

146c4c332cabbbf8ad96fa5bd04ed4c4
SHA1

c8fcf7e23973f023be7c3f385ed3a5b455687b3f
SHA256

155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804
SHA512

3eeda39bb2b3c06d512eec97a607bdff8b522a2cf1c316a284d606f0dc4ffd3a40429e04682ea5af931626ee850c83cea6492064bf350e595c787494a4395bdf

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula

Sakula Payload 2 IoCs

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

2520 MediaCenter.exe

pid	process
2520	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:

155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.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"	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.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 47 IoCs

Processes:

svchost.exe

description	ioc	process
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 = "3968"	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\InternetConnectionCount = "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\UploadRatePct = "100"	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\MonthID = "2"	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\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	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\UploadMonthlyInternetBytes = "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\NormalDownloadCount = "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\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.123109"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	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\DownloadMonthlyCacheHostBytes = "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\DownloadMode_BackCompat = "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\DownloadMonthlyLanBytes = "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\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\Usage\MemoryUsageKB = "3980"	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\DownlinkBps = "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\MemoryUsageKB = "3984"	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\UplinkUsageBps = "0"	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\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.111059"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.069638"	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\UploadMonthlyLanBytes = "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\GroupConnectionCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1952 PING.EXE

pid	process
1952	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe
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

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.execmd.exe

description	pid	process	target process
PID 2672 wrote to memory of 2520	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe	MediaCenter.exe
PID 2672 wrote to memory of 2520	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe	MediaCenter.exe
PID 2672 wrote to memory of 2520	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe	MediaCenter.exe
PID 2672 wrote to memory of 1548	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe	cmd.exe
PID 2672 wrote to memory of 1548	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe	cmd.exe
PID 2672 wrote to memory of 1548	2672	155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe	cmd.exe
PID 1548 wrote to memory of 1952	1548	cmd.exe	PING.EXE
PID 1548 wrote to memory of 1952	1548	cmd.exe	PING.EXE
PID 1548 wrote to memory of 1952	1548	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe
"C:\Users\Admin\AppData\Local\Temp\155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2672

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\155dae8670dbefcd0cc855b1ee52c39ea66f23f9d68f966abd12741e74141804.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1952

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:636

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:2884

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

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
8b39e5944a86bf62cbc555bf5f4c5273

SHA1
3af60df64eee17c6b70637ffc1727bfe9167dcf9

SHA256
7880a561a6c6bcbeb02fb3a356f86d4a56e6040b3ed20fc66c02bd45b9a68744

SHA512
1154cfb07c055468a0cb6bd5e14a8fe5346ca8abaf147c1bdc9f4dc4122af08cd586897552baa551693ced34aa2fd9c6ccd8b7b514125a952a3c8c14052f9f3e

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

MD5
8b39e5944a86bf62cbc555bf5f4c5273

SHA1
3af60df64eee17c6b70637ffc1727bfe9167dcf9

SHA256
7880a561a6c6bcbeb02fb3a356f86d4a56e6040b3ed20fc66c02bd45b9a68744

SHA512
1154cfb07c055468a0cb6bd5e14a8fe5346ca8abaf147c1bdc9f4dc4122af08cd586897552baa551693ced34aa2fd9c6ccd8b7b514125a952a3c8c14052f9f3e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads