sakula | 03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5

General

Target

03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe
Size

99KB
MD5

71b8ef93810bd3b1a7a5aa03f55ebd13
SHA1

3610b80e2a80179eaf452bca78469b3b4eccd91f
SHA256

03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5
SHA512

a7a2e1db442b2744280f6a9532950e365691782480a23b747960e6a17ade7b7aeb4db2770626a384dc06d4da690455bbf98c3525f38982f3e65e4a1b5a5bc64c

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

2744 MediaCenter.exe

pid	process
2744	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:

03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.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"	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe

Drops file in Windows directory 3 IoCs

Processes:

TiWorker.exesvchost.exe

description	ioc	process
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
File opened for modification	C:\Windows\Logs\CBS\CBS.log	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\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\DownloadMonthlyRateFrCnt = "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\GroupConnectionCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.238814"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4080"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4312"	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\LANConnectionCount = "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\CacheSizeBytes = "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\NormalDownloadPendingCount = "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\DownloadMonthlyCdnBytes = "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 (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\SwarmCount = "1"	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\Config\DODownloadMode = "1"	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\Config\KVFileExpirationTime = "132893177652327776"	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\DownloadMonthlyRateBkCnt = "0"	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\MonthID = "2"	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\InternetConnectionCount = "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
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\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.019268"	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\BkDownloadRatePct = "45"	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\DownloadMonthlyRateFrBps = "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\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	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\NormalDownloadCount = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3816 PING.EXE

pid	process
3816	PING.EXE

Suspicious use of AdjustPrivilegeToken 37 IoCs

Processes:

03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe
Token: SeBackupPrivilege	3092	TiWorker.exe
Token: SeRestorePrivilege	3092	TiWorker.exe
Token: SeSecurityPrivilege	3092	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.execmd.exe

description	pid	process	target process
PID 3000 wrote to memory of 2744	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe	MediaCenter.exe
PID 3000 wrote to memory of 2744	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe	MediaCenter.exe
PID 3000 wrote to memory of 2744	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe	MediaCenter.exe
PID 3000 wrote to memory of 3444	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe	cmd.exe
PID 3000 wrote to memory of 3444	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe	cmd.exe
PID 3000 wrote to memory of 3444	3000	03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe	cmd.exe
PID 3444 wrote to memory of 3816	3444	cmd.exe	PING.EXE
PID 3444 wrote to memory of 3816	3444	cmd.exe	PING.EXE
PID 3444 wrote to memory of 3816	3444	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe
"C:\Users\Admin\AppData\Local\Temp\03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3000

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2744

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\03a3561222ede6afaf88786e2cd44dce4f9208c3a7526199751aee8a2e117cf5.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3444

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3816

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2148

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:1924

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:3092

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
b2b7d29cd65e9314c8aa7c23f225a584

SHA1
cd0242e62153b7227199d16f45a5992ad298587d

SHA256
6d4260551c6bae9a2cced22ff2babc292b62e1b3d67dbb097d0d318832db8c36

SHA512
0b13ab12b457da714d59c66d35ee37646e35ab6b623f3512cc2d71c060abe4c9c562bbb1774b2d56e6e16a5ecbd293efa0b022942b86425f51bf478209fff97a

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
b2b7d29cd65e9314c8aa7c23f225a584

SHA1
cd0242e62153b7227199d16f45a5992ad298587d

SHA256
6d4260551c6bae9a2cced22ff2babc292b62e1b3d67dbb097d0d318832db8c36

SHA512
0b13ab12b457da714d59c66d35ee37646e35ab6b623f3512cc2d71c060abe4c9c562bbb1774b2d56e6e16a5ecbd293efa0b022942b86425f51bf478209fff97a

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads