sakula | 16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7

General

Target

16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe
Size

150KB
MD5

0ca32644c4e8bc7a25374cc7fc875f1d
SHA1

2d077944cddc797f71767b5aae2857239ca717c2
SHA256

16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7
SHA512

f606ccd20f60cac55d0c7eb14e7d7adab2c2e04fa5bd764f1468c3f75693545441945f08c1840cd8be4701b297d48b76fbeebbfca329eb4cce4341b6d133eb1e

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

1752 MediaCenter.exe

pid	process
1752	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:

16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.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"	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.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\Settings	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\MonthlyUploadRestriction = "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\NormalDownloadPendingCount = "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\Config\DODownloadMode = "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\DownloadMonthlyRateBkCnt = "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\InternetConnectionCount = "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\Config\KVFileExpirationTime = "132892878549151440"	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\FrDownloadRatePct = "90"	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\DownloadMonthlyInternetBytes = "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\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\SwarmCount = "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\DownloadMonthlyLanBytes = "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\BkDownloadRatePct = "45"	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 = "4284"	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 = "0.105411"	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\UploadMonthlyInternetBytes = "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\CDNConnectionCount = "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
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4292"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	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\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "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\SwarmCount = "1"	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\DownloadMonthlyCdnBytes = "0"	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\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.819165"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4072"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3716 PING.EXE

pid	process
3716	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe

description	pid	process
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeIncBasePriorityPrivilege	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe
Token: SeBackupPrivilege	3496	TiWorker.exe
Token: SeRestorePrivilege	3496	TiWorker.exe
Token: SeSecurityPrivilege	3496	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.execmd.exe

description	pid	process	target process
PID 852 wrote to memory of 1752	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe	MediaCenter.exe
PID 852 wrote to memory of 1752	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe	MediaCenter.exe
PID 852 wrote to memory of 1752	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe	MediaCenter.exe
PID 852 wrote to memory of 3196	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe	cmd.exe
PID 852 wrote to memory of 3196	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe	cmd.exe
PID 852 wrote to memory of 3196	852	16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe	cmd.exe
PID 3196 wrote to memory of 3716	3196	cmd.exe	PING.EXE
PID 3196 wrote to memory of 3716	3196	cmd.exe	PING.EXE
PID 3196 wrote to memory of 3716	3196	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe
"C:\Users\Admin\AppData\Local\Temp\16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:852

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1752

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\16b31b35cc7156fddf967745472e1ceba2458d5cdab702a0ac2e3d7611f71be7.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3196

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3716

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2292

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:3500

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:3496

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
b5c815381f653056ce1ee15bf7fc1933

SHA1
af45d25e592a6b56cff89eee43d2e0702fb3441b

SHA256
4e9d807235b7937dbbd4533c3d4c87133d1bc97fb0b434f371b7f1f544d9002b

SHA512
e6293ceb83def550fba6b68ce849e6981b94d05454aa61e1095aefc3e1c35f6b2a8004e63e9a3fded69fb0f482ad42e06c2c874eb40f9dce1dccef87f62cbdb9

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

MD5
b5c815381f653056ce1ee15bf7fc1933

SHA1
af45d25e592a6b56cff89eee43d2e0702fb3441b

SHA256
4e9d807235b7937dbbd4533c3d4c87133d1bc97fb0b434f371b7f1f544d9002b

SHA512
e6293ceb83def550fba6b68ce849e6981b94d05454aa61e1095aefc3e1c35f6b2a8004e63e9a3fded69fb0f482ad42e06c2c874eb40f9dce1dccef87f62cbdb9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads