sakula | 18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79

General

Target

18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe
Size

104KB
MD5

84d33da1d936581fdcbb25f44b236e4d
SHA1

cccaa62c4696fc89d00ab5ee90770d3cac553f70
SHA256

18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79
SHA512

490bd175614faab2b5a5864fe4928824d4e5e94f23fc62497f2dbf11eb0eb6db3bd37335f923a2edee8e7c10226a4fe63913bea28a8ae9126fe55eefff74ab2c

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

1884 MediaCenter.exe

pid	process
1884	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:

18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.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"	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.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 50 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.066890"	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\Config\DownloadMode_BackCompat = "1"	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 (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\NormalDownloadPendingCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.600022"	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\PriorityDownloadPendingCount = "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\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\BkDownloadRatePct = "45"	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\UploadCount = "0"	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\DownloadMonthlyInternetBytes = "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\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4276"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	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\DownloadMonthlyLanBytes = "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\CacheSizeBytes = "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 = "0.023496"	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\DownloadMonthlyGroupBytes = "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\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\UplinkUsageBps = "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\DownloadMonthlyRateBkBps = "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\Config\KVFileExpirationTime = "132892847890057768"	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\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\SwarmCount = "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\MonthID = "2"	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\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\MemoryUsageKB = "4172"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

616 PING.EXE

pid	process
616	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

TiWorker.exe18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe

description	pid	process
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeIncBasePriorityPrivilege	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe
Token: SeBackupPrivilege	2956	TiWorker.exe
Token: SeRestorePrivilege	2956	TiWorker.exe
Token: SeSecurityPrivilege	2956	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.execmd.exe

description	pid	process	target process
PID 3544 wrote to memory of 1884	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe	MediaCenter.exe
PID 3544 wrote to memory of 1884	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe	MediaCenter.exe
PID 3544 wrote to memory of 1884	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe	MediaCenter.exe
PID 3544 wrote to memory of 2908	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe	cmd.exe
PID 3544 wrote to memory of 2908	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe	cmd.exe
PID 3544 wrote to memory of 2908	3544	18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe	cmd.exe
PID 2908 wrote to memory of 616	2908	cmd.exe	PING.EXE
PID 2908 wrote to memory of 616	2908	cmd.exe	PING.EXE
PID 2908 wrote to memory of 616	2908	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe
"C:\Users\Admin\AppData\Local\Temp\18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3544

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1884

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18efc4c294b7fdaac217fd737d88f5f147d27485ddc0e1329d991aa582402e79.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2908

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:616

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:964

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:2612

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:2956

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
f3a46f10a7de08ddd0e2c1373780af85

SHA1
9d4886dabd2c2d5a4ef8921516d513098a4795c1

SHA256
b7972b1093f23e85784f6a054405fdc072def6587967dbd6d48ddec1b0774a86

SHA512
5b861a1226a3d539bedafce19216dc6514d772be2cbd9ecc149fe419c7491425f29f29617f71c55a29254d48daf5eef64ed49025ca3214be6a3e7e9b3896b54e

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

MD5
f3a46f10a7de08ddd0e2c1373780af85

SHA1
9d4886dabd2c2d5a4ef8921516d513098a4795c1

SHA256
b7972b1093f23e85784f6a054405fdc072def6587967dbd6d48ddec1b0774a86

SHA512
5b861a1226a3d539bedafce19216dc6514d772be2cbd9ecc149fe419c7491425f29f29617f71c55a29254d48daf5eef64ed49025ca3214be6a3e7e9b3896b54e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads