sakula | 15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9

General

Target

15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe
Size

35KB
MD5

1673e3b6125ed243dfbc5f35e0530d76
SHA1

c3a9e38953a2fb84189037259a8de7b6b179ccdb
SHA256

15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9
SHA512

8e457c72a6e725519bf9a0eaf0465aa5ca91f4b57868a482fdff69da332508dd2ac9540db97218aab9fb4d027dfa991e0360b4e37512cc9d38d9e512bbb72a4e

Score

10^/10

sakula persistence rat trojan

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

3340 MediaCenter.exe

pid	process
3340	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:

15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.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"	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe

Drops file in Windows directory 2 IoCs

Processes:

TiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe

Modifies data under HKEY_USERS 45 IoCs

Processes:

svchost.exe

description	ioc	process
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\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\MonthlyUploadRestriction = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.131480"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4216"	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\MonthID = "2"	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\UploadRatePct = "100"	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\LANConnectionCount = "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\DownloadMonthlyCdnBytes = "0"	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\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\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\DownloadMonthlyCacheHostBytes = "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\DownloadMonthlyRateFrCnt = "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\UploadCount = "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\DownloadMonthlyInternetBytes = "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\DownloadMonthlyLinkLocalBytes = "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\DownloadMonthlyRateBkCnt = "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\PriorityDownloadPendingCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4236"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "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\LinkLocalConnectionCount = "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\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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2488 PING.EXE

pid	process
2488	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe
Token: SeBackupPrivilege	2168	TiWorker.exe
Token: SeRestorePrivilege	2168	TiWorker.exe
Token: SeSecurityPrivilege	2168	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.execmd.exe

description	pid	process	target process
PID 3880 wrote to memory of 3340	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe	MediaCenter.exe
PID 3880 wrote to memory of 3340	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe	MediaCenter.exe
PID 3880 wrote to memory of 3340	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe	MediaCenter.exe
PID 3880 wrote to memory of 1152	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe	cmd.exe
PID 3880 wrote to memory of 1152	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe	cmd.exe
PID 3880 wrote to memory of 1152	3880	15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe	cmd.exe
PID 1152 wrote to memory of 2488	1152	cmd.exe	PING.EXE
PID 1152 wrote to memory of 2488	1152	cmd.exe	PING.EXE
PID 1152 wrote to memory of 2488	1152	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe
"C:\Users\Admin\AppData\Local\Temp\15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3880

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:3340

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\15b7caa9487dcafb5ee66b555251c3d16b656cb813c3414671553d741b414bd9.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:2488

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1788

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:2848

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:2168

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
7263fef540e554e7f507b487bfda63a5

SHA1
42e36b85490c37f76db1199a2efb425574f5822b

SHA256
8c620f234dea1e644a8fcb78fb94a39e590facdf8ffb7b95970342c06215771b

SHA512
0ddebe56bb9b07e0ad534cc9841b13486b0188e6def51efc73276a384a115fb10d466e66790b47cf6286a7c054111e7b63505b708a76045328d2e6285d67054b

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

MD5
7263fef540e554e7f507b487bfda63a5

SHA1
42e36b85490c37f76db1199a2efb425574f5822b

SHA256
8c620f234dea1e644a8fcb78fb94a39e590facdf8ffb7b95970342c06215771b

SHA512
0ddebe56bb9b07e0ad534cc9841b13486b0188e6def51efc73276a384a115fb10d466e66790b47cf6286a7c054111e7b63505b708a76045328d2e6285d67054b

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads