sakula | 13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3

General

Target

13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe
Size

150KB
MD5

200d9aa10fc4ba50b9b679e132f640c1
SHA1

6ddf158aea627113d7aa874ede00730e57a1acde
SHA256

13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3
SHA512

3472cfb5376a0215c7897ff4e9f341902c5652ff0967fa61ac22d073833c20e97ea60fb1c46f7a809a651294df700463a3de710d16e50b6834ed6b0c1a61829e

Score

10^/10

sakula persistence rat suricata 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/3456-132-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula
behavioral2/memory/2428-133-0x0000000000400000-0x0000000000420000-memory.dmp	family_sakula

suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata
Executes dropped EXE 1 IoCs

Processes:

MediaCenter.exe

pid process

2428 MediaCenter.exe

pid	process
2428	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:

13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.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"	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.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 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 19 IoCs

Processes:

svchost.exe

description	ioc	process
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\DownloadMonthlyCdnBytes = "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\DownloadMonthlyInternetBytes = "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\Settings	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\UploadMonthlyLanBytes = "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\DownloadMonthlyRateBkBps = "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\DownloadMonthlyLanBytes = "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\DownloadMonthlyCacheHostBytes = "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\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\UploadMonthlyInternetBytes = "0"	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3348 PING.EXE

pid	process
3348	PING.EXE

Suspicious use of AdjustPrivilegeToken 22 IoCs

Processes:

13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exeTiWorker.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe
Token: SeBackupPrivilege	2648	TiWorker.exe
Token: SeRestorePrivilege	2648	TiWorker.exe
Token: SeSecurityPrivilege	2648	TiWorker.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.execmd.exe

description	pid	process	target process
PID 3456 wrote to memory of 2428	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe	MediaCenter.exe
PID 3456 wrote to memory of 2428	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe	MediaCenter.exe
PID 3456 wrote to memory of 2428	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe	MediaCenter.exe
PID 3456 wrote to memory of 3324	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe	cmd.exe
PID 3456 wrote to memory of 3324	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe	cmd.exe
PID 3456 wrote to memory of 3324	3456	13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe	cmd.exe
PID 3324 wrote to memory of 3348	3324	cmd.exe	PING.EXE
PID 3324 wrote to memory of 3348	3324	cmd.exe	PING.EXE
PID 3324 wrote to memory of 3348	3324	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe
"C:\Users\Admin\AppData\Local\Temp\13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3456

C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
2⤵
- Executes dropped EXE
PID:2428

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\13b540cc87be8c306fe5177b8fab9e69b633ca8ae0ed5574a6839e04f5f56fa3.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3324

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1
3⤵
- Runs ping.exe
PID:3348

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1320

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:3416

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:2648

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
6f313452095a87706d8ea5aa8806a13e

SHA1
2d56a9a4e05ce80392f265952667fd30f5d29697

SHA256
98e84717a79713346c069bf7b7e00f2af5a89886092bbbdd8f57e2373895de8c

SHA512
8338e55511195095b0b8a926768966962ba07ddf328564cc1cbc6d8ca8c4f16d7ddaf49bb3a817ec9fa76a0f386e2fd397b49c124f8732cf0dd35f4a520c1008

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

MD5
6f313452095a87706d8ea5aa8806a13e

SHA1
2d56a9a4e05ce80392f265952667fd30f5d29697

SHA256
98e84717a79713346c069bf7b7e00f2af5a89886092bbbdd8f57e2373895de8c

SHA512
8338e55511195095b0b8a926768966962ba07ddf328564cc1cbc6d8ca8c4f16d7ddaf49bb3a817ec9fa76a0f386e2fd397b49c124f8732cf0dd35f4a520c1008

Download Submit
memory/2428-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3456-132-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads