sakula | 05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d

General

Target

05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe
Size

60KB
MD5

870c4f35c986c08f830e5029fdece14a
SHA1

7247575b3805884950b3650342e61e1783795055
SHA256

05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d
SHA512

487b811e5e967f01636e5954f5439c16a10d764a254a5199fe133bff666d30cfad7ca423bcc4cf067f83ca87a1f230fe5dbc96deaa2e7f8627b1d18a4f401949

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

1636 MediaCenter.exe

pid	process
1636	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:

05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.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"	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe

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

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 51 IoCs

Processes:

svchost.exe

description	ioc	process
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\DODownloadMode = "1"	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\DownloadMonthlyLanBytes = "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\SwarmCount = "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\DownloadMonthlyCdnBytes = "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 = "132893146075687214"	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\CDNConnectionCount = "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\Usage\DownloadMonthlyRateFrCnt = "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\MonthlyUploadRestriction = "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\MemoryUsageKB = "4000"	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\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\DownlinkUsageBps = "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\PriorityDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "8.955314"	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\DownloadMonthlyInternetBytes = "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\BkDownloadRatePct = "45"	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\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\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\LinkLocalConnectionCount = "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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4336"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.006577"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "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\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\DownloadMonthlyGroupBytes = "0"	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\InternetConnectionCount = "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\MemoryUsageKB = "4168"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "18.746213"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3036 PING.EXE

pid	process
3036	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe

description	pid	process
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeIncBasePriorityPrivilege	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe
Token: SeBackupPrivilege	896	TiWorker.exe
Token: SeRestorePrivilege	896	TiWorker.exe
Token: SeSecurityPrivilege	896	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.execmd.exe

description	pid	process	target process
PID 3424 wrote to memory of 1636	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe	MediaCenter.exe
PID 3424 wrote to memory of 1636	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe	MediaCenter.exe
PID 3424 wrote to memory of 1636	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe	MediaCenter.exe
PID 3424 wrote to memory of 1136	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe	cmd.exe
PID 3424 wrote to memory of 1136	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe	cmd.exe
PID 3424 wrote to memory of 1136	3424	05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe	cmd.exe
PID 1136 wrote to memory of 3036	1136	cmd.exe	PING.EXE
PID 1136 wrote to memory of 3036	1136	cmd.exe	PING.EXE
PID 1136 wrote to memory of 3036	1136	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe
"C:\Users\Admin\AppData\Local\Temp\05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3424

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1636

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\05a1e9a55cf6a536b4a21cf5384cecd2ef03fbd45beb0a860d666d9b15b5be3d.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1136

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3036

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2112

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:3572

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:896

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
b2bffcfa4661289b62a32c3c4d492150

SHA1
fa5c0005f9b92a14993f77e3bd2d8229dd977586

SHA256
d3afc47d6ffe226e38add6b1641f86061163b603f938db44a4f2bc0286d13e2d

SHA512
c9f4c97b5d9900a5b5b1a2b4273a81388bba19a2ca78c5146073d8784462d02bfd2efce1891f211d7b3bb7f4b1eb42dc080984840b71cf0f1dfd011c41491983

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
b2bffcfa4661289b62a32c3c4d492150

SHA1
fa5c0005f9b92a14993f77e3bd2d8229dd977586

SHA256
d3afc47d6ffe226e38add6b1641f86061163b603f938db44a4f2bc0286d13e2d

SHA512
c9f4c97b5d9900a5b5b1a2b4273a81388bba19a2ca78c5146073d8784462d02bfd2efce1891f211d7b3bb7f4b1eb42dc080984840b71cf0f1dfd011c41491983

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads