sakula | 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb

General

Target

1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe
Size

80KB
MD5

f7fd7e9ab1d5dccc7a80331701805d3a
SHA1

ec43d5e19b53b3308e3c613e13e831b5c56052e2
SHA256

1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb
SHA512

a40fb9914ec774df775d2bcac75ff956dcc1c90a5c50d883041089002c1f083eae84bf25596320659d64e524749cf8508b27ada2b002468d3320feae8e0dfbf6

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

2684 MediaCenter.exe

pid	process
2684	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:

1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.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"	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe

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

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 49 IoCs

Processes:

svchost.exe

description	ioc	process
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 = "4068"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4208"	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\DownloadMonthlyLinkLocalBytes = "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\MonthlyUploadRestriction = "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\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\BkDownloadRatePct = "45"	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\PriorityDownloadCount = "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\Config\DownloadMode_BackCompat = "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\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892889011001865"	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 (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.847515"	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\Config	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	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\DownloadMonthlyCacheHostBytes = "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\InternetConnectionCount = "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\DownlinkBps = "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\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\Usage\SwarmCount = "1"	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\CDNConnectionCount = "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 = "1.153839"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.699288"	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\DownloadMonthlyRateFrCnt = "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\DownlinkUsageBps = "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\DownloadMonthlyRateBkCnt = "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\GroupConnectionCount = "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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1228 PING.EXE

pid	process
1228	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe

description	pid	process
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe
Token: SeRestorePrivilege	1656	TiWorker.exe
Token: SeSecurityPrivilege	1656	TiWorker.exe
Token: SeBackupPrivilege	1656	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.execmd.exe

description	pid	process	target process
PID 1504 wrote to memory of 2684	1504	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe	MediaCenter.exe
PID 1504 wrote to memory of 2684	1504	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe	MediaCenter.exe
PID 1504 wrote to memory of 2684	1504	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe	MediaCenter.exe
PID 1504 wrote to memory of 4092	1504	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe	cmd.exe
PID 1504 wrote to memory of 4092	1504	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe	cmd.exe
PID 1504 wrote to memory of 4092	1504	1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe	cmd.exe
PID 4092 wrote to memory of 1228	4092	cmd.exe	PING.EXE
PID 4092 wrote to memory of 1228	4092	cmd.exe	PING.EXE
PID 4092 wrote to memory of 1228	4092	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe
"C:\Users\Admin\AppData\Local\Temp\1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1504

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2684

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4092

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:1228

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3652

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:2112

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:1656

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
b73d711cfe490be2d2dfa54772fcafe4

SHA1
27bcf600197666e06a3954c13bb6df3a35640424

SHA256
a55b68f07a55c719f53bc3145a2a050f0039ca1503e63b48f9457dab06a2b5ee

SHA512
bcb613e29b69ae9eb601126c1f6836b6a0c08addc74b766e4b530eb5f23e6168f7df86b41c6a92763b082bb78143c121149f5af4faf828c6359439ff9d2c1717

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

MD5
b73d711cfe490be2d2dfa54772fcafe4

SHA1
27bcf600197666e06a3954c13bb6df3a35640424

SHA256
a55b68f07a55c719f53bc3145a2a050f0039ca1503e63b48f9457dab06a2b5ee

SHA512
bcb613e29b69ae9eb601126c1f6836b6a0c08addc74b766e4b530eb5f23e6168f7df86b41c6a92763b082bb78143c121149f5af4faf828c6359439ff9d2c1717

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads