sakula | b16265ca77e81411c4dbe0954ad13b1909c5a54a05bc353592a64b08b3246dd3

General

Target
3ab66559dd88f4af601373f85e87a3f0N.exe
Size 283KB
Sample240813-j6aqcssgrg
SHA256 b16265ca77e81411c4dbe0954ad13b1909c5a54a05bc353592a64b08b3246dd3
MD5 3ab66559dd88f4af601373f85e87a3f0
SHA1 caaf00285814a28a1e7cc2ca99619f963d2bfad0
SHA512 7de93561e210fd61e4b7eaea1d8d3ac2c615f7836f314873443a02c34a7d7b3d48a073ceb0d6d41972369269a9bb6e12468974e3710904d6c8925534e5815c89
SSDEEP 1536:NU9abrtX4oocIK3yQkaY9z/S0hhnDiKKJqTnouy8HeBsCXKTnhxJe:Nm2rocIyhYtJxKJqrout+BsZhm
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

sakula discovery persistence rat trojan upx

Malware Config

Signatures

Sakula
Sakula is a remote access trojan with various capabilities.
trojan rat sakula

Sakula payload 4 IoCs

resource	yara_rule
behavioral2/memory/3252-6-0x0000000000D20000-0x0000000000D3F000-memory.dmp	family_sakula
behavioral2/memory/3892-7-0x0000000000C80000-0x0000000000C9F000-memory.dmp	family_sakula
behavioral2/memory/3252-13-0x0000000000D20000-0x0000000000D3F000-memory.dmp	family_sakula
behavioral2/memory/3892-19-0x0000000000C80000-0x0000000000C9F000-memory.dmp	family_sakula

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	3ab66559dd88f4af601373f85e87a3f0N.exe

Executes dropped EXE 1 IoCs

pid	Process
3892	MediaCenter.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3252-0-0x0000000000D20000-0x0000000000D3F000-memory.dmp	upx
behavioral2/files/0x000800000002343c-3.dat	upx
behavioral2/memory/3892-5-0x0000000000C80000-0x0000000000C9F000-memory.dmp	upx
behavioral2/memory/3252-6-0x0000000000D20000-0x0000000000D3F000-memory.dmp	upx
behavioral2/memory/3892-7-0x0000000000C80000-0x0000000000C9F000-memory.dmp	upx
behavioral2/memory/3252-13-0x0000000000D20000-0x0000000000D3F000-memory.dmp	upx
behavioral2/memory/3892-19-0x0000000000C80000-0x0000000000C9F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe"	3ab66559dd88f4af601373f85e87a3f0N.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3ab66559dd88f4af601373f85e87a3f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MediaCenter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3904	cmd.exe
4760	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4760	PING.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3252	3ab66559dd88f4af601373f85e87a3f0N.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 3892	3252	3ab66559dd88f4af601373f85e87a3f0N.exe	84
PID 3252 wrote to memory of 3892	3252	3ab66559dd88f4af601373f85e87a3f0N.exe	84
PID 3252 wrote to memory of 3892	3252	3ab66559dd88f4af601373f85e87a3f0N.exe	84
PID 3252 wrote to memory of 3904	3252	3ab66559dd88f4af601373f85e87a3f0N.exe	96
PID 3252 wrote to memory of 3904	3252	3ab66559dd88f4af601373f85e87a3f0N.exe	96
PID 3252 wrote to memory of 3904	3252	3ab66559dd88f4af601373f85e87a3f0N.exe	96
PID 3904 wrote to memory of 4760	3904	cmd.exe	98
PID 3904 wrote to memory of 4760	3904	cmd.exe	98
PID 3904 wrote to memory of 4760	3904	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\3ab66559dd88f4af601373f85e87a3f0N.exe
"C:\Users\Admin\AppData\Local\Temp\3ab66559dd88f4af601373f85e87a3f0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
  C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\3ab66559dd88f4af601373f85e87a3f0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3904
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

MediaCenter.exe

Path C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
Size 283KB
SHA256 3a0f70a429580dc23e63861bdeb15edef30d9a4f03dc059fb247eef9763e5d2c
MD5 f59b9c2a763adb525b8b933c736bd7c4
SHA1 d0ad6e84e43a9eb42af57615f4f05394400f0ed9
SHA512 2ae512543e8d609ce3bdafd0b65525b8210ce53961b3994f308398000ff6add7a736a89d3de0e7074d65a9228db7f2a50277d9f4c8a0ff54c0001656249628e4
SSDEEP 1536:NU9abrtX4oocIK3yQkaY9z/S0hhnDiKKJqTnouy8HeBsCXKTnhxJ7:Nm2rocIyhYtJxKJqrout+BsZhT
MD5 SHA1 SHA512 SSDEEP

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memory/3252-0-0x0000000000D20000-0x0000000000D3F000-memory.dmp

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memory/3252-6-0x0000000000D20000-0x0000000000D3F000-memory.dmp

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memory/3252-13-0x0000000000D20000-0x0000000000D3F000-memory.dmp

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memory/3892-5-0x0000000000C80000-0x0000000000C9F000-memory.dmp

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memory/3892-7-0x0000000000C80000-0x0000000000C9F000-memory.dmp

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memory/3892-19-0x0000000000C80000-0x0000000000C9F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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