sakula | 054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb

General

Target

054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe
Size

216KB
MD5

a20f53b09c915a5ff0cddd8d20602707
SHA1

fba7a26aa46121b10c9b5e348b32e0be521aa19b
SHA256

054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb
SHA512

814806ef81b9a6356fd2dd3f28979e6df0981a6e2c23a57c14c7767ed0235002024cd32136c0b6111c9122abcea4d693a20d08611e648a72a7aaa147ed2df0ee

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 4 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
behavioral2/memory/3588-132-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula
behavioral2/memory/1808-133-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula

Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

1808 MediaCenter.exe

pid	process
1808	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:

054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.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"	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.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 49 IoCs

Processes:

svchost.exe

description	ioc	process
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\UploadRatePct = "100"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.210084"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	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\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\Usage\NormalDownloadCount = "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\DownloadMonthlyCdnBytes = "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\GroupConnectionCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.327005"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "7.143138"	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\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 (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\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\Config\DODownloadMode = "1"	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\UploadCount = "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\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\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\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\Config\KVFileExpirationTime = "132893152438502983"	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\CacheSizeBytes = "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\InternetConnectionCount = "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\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\FrDownloadRatePct = "90"	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\PeerInfoCount = "0"	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 = "4272"	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\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

820 PING.EXE

pid	process
820	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe
Token: SeBackupPrivilege	2980	TiWorker.exe
Token: SeRestorePrivilege	2980	TiWorker.exe
Token: SeSecurityPrivilege	2980	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.execmd.exe

description	pid	process	target process
PID 3588 wrote to memory of 1808	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe	MediaCenter.exe
PID 3588 wrote to memory of 1808	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe	MediaCenter.exe
PID 3588 wrote to memory of 1808	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe	MediaCenter.exe
PID 3588 wrote to memory of 4036	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe	cmd.exe
PID 3588 wrote to memory of 4036	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe	cmd.exe
PID 3588 wrote to memory of 4036	3588	054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe	cmd.exe
PID 4036 wrote to memory of 820	4036	cmd.exe	PING.EXE
PID 4036 wrote to memory of 820	4036	cmd.exe	PING.EXE
PID 4036 wrote to memory of 820	4036	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe
"C:\Users\Admin\AppData\Local\Temp\054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:1808

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\054d013bc055237bf90eeccc7cbfe820fe50adff4e69cf33a56608da535e38fb.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4036

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:820

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2172

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:3552

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:2980

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
0f907631cd6d4ff21d47c1ecf744dd70

SHA1
af62bdbb6b931ff158b2b976aa1ca9bf8059abdf

SHA256
df86a5b4932c8ce832ddcd8f0ce022fd0630c48a7df2b218fed7bf847c8594f8

SHA512
869386b211ee124a08c5fc0d7b4d388b010d1bfb5099f8a6cdb83a1e410b3949d09593dedceb39cd9c984f0e2daabd256fe4c5654675a9f110444268eed0a67a

Download Submit
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
MD5
0f907631cd6d4ff21d47c1ecf744dd70

SHA1
af62bdbb6b931ff158b2b976aa1ca9bf8059abdf

SHA256
df86a5b4932c8ce832ddcd8f0ce022fd0630c48a7df2b218fed7bf847c8594f8

SHA512
869386b211ee124a08c5fc0d7b4d388b010d1bfb5099f8a6cdb83a1e410b3949d09593dedceb39cd9c984f0e2daabd256fe4c5654675a9f110444268eed0a67a

Download Submit
memory/1808-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3588-132-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads