05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf

Analysis

max time kernel
127s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 05:06

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General

Target

SKlauncher-3.2.exe
Size

1.6MB
MD5

b63468dd118dfbca5ef7967ba344e0e3
SHA1

2ba4f0df5f3bd284bf2a89aba320e4440d8b8355
SHA256

05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf
SHA512

007ecb7445dc0c01a802b5a2c91313aae59f9dc96e27455dd85e7a92a4e649d683fbc2ada5f48925d9ab3b4fdaea20aa89eeb442fde079902aecb5ca3454a548
SSDEEP

49152:HIBc3n9dRvwVlzhFAQ/ggUTPQjYEiim7V:oBaO/FAqMQjYEXm

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
536	SKlauncher-3.2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3232	icacls.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	\??\c:\program files\java\jre-1.8\bin\jvm.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\server\symbols\dll\ntdll.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\dll\ntdll.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\dll\jvm.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\symbols\dll\jvm.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\server\ntdll.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\server\dll\ntdll.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\ntdll.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\server\jvm.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\server\dll\jvm.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\server\symbols\dll\jvm.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\symbols\dll\ntdll.pdb	SKlauncher-3.2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
536	SKlauncher-3.2.exe
536	SKlauncher-3.2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 4316	536	SKlauncher-3.2.exe	88
PID 536 wrote to memory of 4316	536	SKlauncher-3.2.exe	88
PID 4316 wrote to memory of 3232	4316	java.exe	90
PID 4316 wrote to memory of 3232	4316	java.exe	90
PID 536 wrote to memory of 4504	536	SKlauncher-3.2.exe	92
PID 536 wrote to memory of 4504	536	SKlauncher-3.2.exe	92

C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.2.exe
"C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.2.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:536
- \??\c:\PROGRA~1\java\jre-1.8\bin\java.exe
  "c:\PROGRA~1\java\jre-1.8\bin\java.exe" -version
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\system32\icacls.exe
    C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
    3⤵
    - Modifies file permissions
    PID:3232
- \??\c:\PROGRA~1\java\jdk-1.8\jre\bin\java.exe
  "c:\PROGRA~1\java\jdk-1.8\jre\bin\java.exe" -version
  2⤵
  PID:4504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
ad792aadc793ee5e897b7fefb4b20868

SHA1
977eba667ca0ece853fdcdaa373c825decb2e514

SHA256
c22edc7df7a3aba52cb9b8443ac8e8ad2d4511c74a108bbe7bd1372463bfa717

SHA512
f896cd031c73834123bc1b0a1d98ffce18633f1c18a229513d7e01a5a1bad432e9752355725169ad7d719f18e2e0c8a4126117507e64925775a3be6e32c416c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4786694613600.dll

Filesize
22KB

MD5
dcd68a87b7e6edbcfde48150403b22eb

SHA1
28e4839a29725075772fccc39b44e194eb91e477

SHA256
ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c

SHA512
ac2a6bc0afcd08c56090536a937772edd54f35505c9a5837d9bc8e91c31edb6137cf5191986b3473e9e2f512950b4dbfe4088598bfd1faf47088124c70aeba71

Download Submit
memory/536-92-0x0000000002F60000-0x0000000003F60000-memory.dmp

Filesize
16.0MB

Download
memory/536-63-0x0000000002F60000-0x0000000003F60000-memory.dmp

Filesize
16.0MB

Download
memory/536-107-0x0000000002F60000-0x0000000003F60000-memory.dmp

Filesize
16.0MB

Download
memory/536-35-0x0000000002F60000-0x0000000003F60000-memory.dmp

Filesize
16.0MB

Download
memory/536-43-0x0000000002D20000-0x0000000002D21000-memory.dmp

Filesize
4KB

Download
memory/536-100-0x0000000002F60000-0x0000000003F60000-memory.dmp

Filesize
16.0MB

Download
memory/536-48-0x0000000002D20000-0x0000000002D21000-memory.dmp

Filesize
4KB

Download
memory/536-82-0x0000000002D20000-0x0000000002D21000-memory.dmp

Filesize
4KB

Download
memory/536-81-0x0000000002D20000-0x0000000002D21000-memory.dmp

Filesize
4KB

Download
memory/4316-10-0x000002B6108D0000-0x000002B6118D0000-memory.dmp

Filesize
16.0MB

Download
memory/4316-15-0x000002B60F090000-0x000002B60F091000-memory.dmp

Filesize
4KB

Download
memory/4504-24-0x00000225E26C0000-0x00000225E36C0000-memory.dmp

Filesize
16.0MB

Download
memory/4504-29-0x00000225E0DD0000-0x00000225E0DD1000-memory.dmp

Filesize
4KB

Download
memory/4504-129-0x00000225E26C0000-0x00000225E36C0000-memory.dmp

Filesize
16.0MB

Download