sakula | 1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2

General

Target

1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe
Size

192KB
MD5

3dc8fc635531d8f97cdb43104864dee1
SHA1

8f4625771536773342a6f326530305f6617d33c9
SHA256

1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2
SHA512

98eefc5dc0c0add287c18178e6ff9e63901aa693ffbb53850394a2ccbbc1bef842fe4b0c27607b3aa5a2d38865048ec6586720277f4b58303cd2249df73230a6

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

628 MediaCenter.exe

pid	process
628	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:

1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.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"	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe

Drops file in Windows directory 2 IoCs

Processes:

TiWorker.exe

description	ioc	process
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 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 47 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\PeerInfoCount = "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\UplinkUsageBps = "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 = "3668"	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\CDNConnectionCount = "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\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3692"	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\UploadMonthlyInternetBytes = "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\DownloadMonthlyCacheHostBytes = "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\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	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\SwarmCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.250095"	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\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\DownlinkUsageBps = "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 = "0.239617"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "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\DownloadMonthlyInternetBytes = "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\DODownloadMode = "1"	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\SwarmCount = "1"	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\NormalDownloadCount = "0"	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 = "3696"	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\BkDownloadRatePct = "45"	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\DownloadMonthlyRateFrCnt = "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\GroupConnectionCount = "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\Config\DownloadMode_BackCompat = "1"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

808 PING.EXE

pid	process
808	PING.EXE

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe
Token: SeBackupPrivilege	3088	TiWorker.exe
Token: SeRestorePrivilege	3088	TiWorker.exe
Token: SeSecurityPrivilege	3088	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.execmd.exe

description	pid	process	target process
PID 2884 wrote to memory of 628	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe	MediaCenter.exe
PID 2884 wrote to memory of 628	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe	MediaCenter.exe
PID 2884 wrote to memory of 628	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe	MediaCenter.exe
PID 2884 wrote to memory of 2152	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe	cmd.exe
PID 2884 wrote to memory of 2152	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe	cmd.exe
PID 2884 wrote to memory of 2152	2884	1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe	cmd.exe
PID 2152 wrote to memory of 808	2152	cmd.exe	PING.EXE
PID 2152 wrote to memory of 808	2152	cmd.exe	PING.EXE
PID 2152 wrote to memory of 808	2152	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe
"C:\Users\Admin\AppData\Local\Temp\1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2884

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:628

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1559b6fc5bec5d078977685a70d5054ff084c26ec5ab4e7f1349dbd3407c3cb2.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2152

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:808

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1216

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:3860

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:3088

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
3d42c408136b74d03f0aeda0d2e1a8b5

SHA1
dbd9b4139fb3272e88090bfe9e5a3a8b2007f300

SHA256
3f585f6f2b8210ef13f9b62f9e33586dcd5bef523695ff8a94a8e215a9fc3fb6

SHA512
71849c838c4930b24e0754c943582b3d6b7525f03a4595f50a27e6d3b9fea4628858e84fa0f6f5552f1e64086c87778fa1df3a616c6a35fb5e43d67b040f6bf6

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

MD5
3d42c408136b74d03f0aeda0d2e1a8b5

SHA1
dbd9b4139fb3272e88090bfe9e5a3a8b2007f300

SHA256
3f585f6f2b8210ef13f9b62f9e33586dcd5bef523695ff8a94a8e215a9fc3fb6

SHA512
71849c838c4930b24e0754c943582b3d6b7525f03a4595f50a27e6d3b9fea4628858e84fa0f6f5552f1e64086c87778fa1df3a616c6a35fb5e43d67b040f6bf6

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads