sakula | 023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3

General

Target

023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe
Size

192KB
MD5

77c286385959c81f3ce25a1c9dcc002f
SHA1

578434c6b1883d00efd77ab4aeb43bec6d933dcd
SHA256

023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3
SHA512

c976b665b71dca8479f7e31400a97dfd3ecba75814c64c17ccae42c5c9f83eabd70ea87df50312863d45586905d29e389821330cfbe11029da951ef36d4236d6

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

3692 MediaCenter.exe

pid	process
3692	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:

023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.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"	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.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\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.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
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\MemoryUsageKB = "4336"	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
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\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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "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\UploadMonthlyInternetBytes = "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\DownloadMonthlyLinkLocalBytes = "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\Config\KVFileExpirationTime = "132893189884146328"	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\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\DownloadMonthlyCacheHostBytes = "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\DownloadMonthlyRateFrBps = "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\UplinkUsageBps = "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 = "0.313479"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4360"	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\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\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\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 (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\InternetConnectionCount = "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\Usage\MemoryUsageKB = "4124"	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\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "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\PeerInfoCount = "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\UploadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.581396"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2568 PING.EXE

pid	process
2568	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe
Token: SeBackupPrivilege	1320	TiWorker.exe
Token: SeRestorePrivilege	1320	TiWorker.exe
Token: SeSecurityPrivilege	1320	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.execmd.exe

description	pid	process	target process
PID 2612 wrote to memory of 3692	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe	MediaCenter.exe
PID 2612 wrote to memory of 3692	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe	MediaCenter.exe
PID 2612 wrote to memory of 3692	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe	MediaCenter.exe
PID 2612 wrote to memory of 3936	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe	cmd.exe
PID 2612 wrote to memory of 3936	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe	cmd.exe
PID 2612 wrote to memory of 3936	2612	023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe	cmd.exe
PID 3936 wrote to memory of 2568	3936	cmd.exe	PING.EXE
PID 3936 wrote to memory of 2568	3936	cmd.exe	PING.EXE
PID 3936 wrote to memory of 2568	3936	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe
"C:\Users\Admin\AppData\Local\Temp\023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3692

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\023bc7791450762baaf88f9eef665edf2f7aec44a05020447dd137008035f0e3.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3936

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2568

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2072

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:2964

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:1320

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
c94b2012d05e6ce4548f72f702594675

SHA1
517d1a61a1254b9b68d9f001711c6b2e92a74d49

SHA256
8a1f05d00060931aafd1abd73d119a784bb389a794c86b8b9532786e6c179261

SHA512
1367ac17d60644898b60b111e7e249d1e06cb694d064f80e0c1a7d05540874a4467d8848b0c6e3d1f68c9f35eaf26f694d4ceb47eef1532d1412f736f8ad28aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
c94b2012d05e6ce4548f72f702594675

SHA1
517d1a61a1254b9b68d9f001711c6b2e92a74d49

SHA256
8a1f05d00060931aafd1abd73d119a784bb389a794c86b8b9532786e6c179261

SHA512
1367ac17d60644898b60b111e7e249d1e06cb694d064f80e0c1a7d05540874a4467d8848b0c6e3d1f68c9f35eaf26f694d4ceb47eef1532d1412f736f8ad28aa

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads