05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2023, 18:12

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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
2700	SKlauncher-3.2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2716	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\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\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\dll\ntdll.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\symbols\dll\ntdll.pdb	SKlauncher-3.2.exe
File opened for modification	\??\c:\program files\java\jre-1.8\bin\jvm.pdb	SKlauncher-3.2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2700	SKlauncher-3.2.exe
2700	SKlauncher-3.2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 4044	2700	SKlauncher-3.2.exe	83
PID 2700 wrote to memory of 4044	2700	SKlauncher-3.2.exe	83
PID 4044 wrote to memory of 2716	4044	java.exe	85
PID 4044 wrote to memory of 2716	4044	java.exe	85
PID 2700 wrote to memory of 4568	2700	SKlauncher-3.2.exe	87
PID 2700 wrote to memory of 4568	2700	SKlauncher-3.2.exe	87

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:2700
- \??\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:4044
- - 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:2716
- \??\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:4568

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
d7f6216d347cba41a544abf277d91a20

SHA1
b537f75b8b888ce1b987866fe2d7ba09b8c711e7

SHA256
1f99e53c40dbb1b787e4bd0cefd25910f67c047a1528324f3320e2e50f88e8f6

SHA512
a0ccc9190cd32e26f06a5ae344142cdf65aa7f27c9be54e2475f68a8f8b32efbc775061c95524d5a63d28a5c16ef21eda511b851ed40b1ca5a3e59bb6996f8d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4912105384000.dll

Filesize
22KB

MD5
dcd68a87b7e6edbcfde48150403b22eb

SHA1
28e4839a29725075772fccc39b44e194eb91e477

SHA256
ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c

SHA512
ac2a6bc0afcd08c56090536a937772edd54f35505c9a5837d9bc8e91c31edb6137cf5191986b3473e9e2f512950b4dbfe4088598bfd1faf47088124c70aeba71

Download Submit
memory/2700-131-0x0000000002630000-0x0000000002640000-memory.dmp

Filesize
64KB

Download
memory/2700-111-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-155-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-42-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-43-0x0000000002130000-0x0000000002131000-memory.dmp

Filesize
4KB

Download
memory/2700-47-0x0000000002130000-0x0000000002131000-memory.dmp

Filesize
4KB

Download
memory/2700-154-0x00000000027C0000-0x00000000027D0000-memory.dmp

Filesize
64KB

Download
memory/2700-69-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-79-0x0000000002130000-0x0000000002131000-memory.dmp

Filesize
4KB

Download
memory/2700-88-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-94-0x0000000002130000-0x0000000002131000-memory.dmp

Filesize
4KB

Download
memory/2700-103-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-132-0x0000000002640000-0x0000000002650000-memory.dmp

Filesize
64KB

Download
memory/2700-118-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-123-0x0000000002590000-0x00000000025A0000-memory.dmp

Filesize
64KB

Download
memory/2700-124-0x0000000002610000-0x0000000002620000-memory.dmp

Filesize
64KB

Download
memory/2700-125-0x00000000026D0000-0x00000000026E0000-memory.dmp

Filesize
64KB

Download
memory/2700-126-0x0000000002760000-0x0000000002770000-memory.dmp

Filesize
64KB

Download
memory/2700-127-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-128-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/2700-129-0x00000000025F0000-0x0000000002600000-memory.dmp

Filesize
64KB

Download
memory/2700-130-0x0000000002600000-0x0000000002610000-memory.dmp

Filesize
64KB

Download
memory/2700-153-0x00000000027B0000-0x00000000027C0000-memory.dmp

Filesize
64KB

Download
memory/2700-152-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-140-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-134-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-135-0x0000000002660000-0x0000000002670000-memory.dmp

Filesize
64KB

Download
memory/2700-136-0x0000000002670000-0x0000000002680000-memory.dmp

Filesize
64KB

Download
memory/2700-137-0x0000000002680000-0x0000000002690000-memory.dmp

Filesize
64KB

Download
memory/2700-138-0x00000000026A0000-0x00000000026B0000-memory.dmp

Filesize
64KB

Download
memory/2700-139-0x00000000026B0000-0x00000000026C0000-memory.dmp

Filesize
64KB

Download
memory/2700-133-0x0000000002650000-0x0000000002660000-memory.dmp

Filesize
64KB

Download
memory/2700-141-0x00000000026C0000-0x00000000026D0000-memory.dmp

Filesize
64KB

Download
memory/2700-142-0x00000000026E0000-0x00000000026F0000-memory.dmp

Filesize
64KB

Download
memory/2700-143-0x0000000002700000-0x0000000002710000-memory.dmp

Filesize
64KB

Download
memory/2700-144-0x0000000002710000-0x0000000002720000-memory.dmp

Filesize
64KB

Download
memory/2700-145-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-146-0x0000000002720000-0x0000000002730000-memory.dmp

Filesize
64KB

Download
memory/2700-147-0x0000000002740000-0x0000000002750000-memory.dmp

Filesize
64KB

Download
memory/2700-148-0x0000000002750000-0x0000000002760000-memory.dmp

Filesize
64KB

Download
memory/2700-149-0x0000000002310000-0x0000000003310000-memory.dmp

Filesize
16.0MB

Download
memory/2700-150-0x0000000002780000-0x0000000002790000-memory.dmp

Filesize
64KB

Download
memory/2700-151-0x0000000002790000-0x00000000027A0000-memory.dmp

Filesize
64KB

Download
memory/4044-5-0x0000015D05BF0000-0x0000015D06BF0000-memory.dmp

Filesize
16.0MB

Download
memory/4044-15-0x0000015D04400000-0x0000015D04401000-memory.dmp

Filesize
4KB

Download
memory/4568-21-0x0000023020930000-0x0000023021930000-memory.dmp

Filesize
16.0MB

Download
memory/4568-29-0x000002301F030000-0x000002301F031000-memory.dmp

Filesize
4KB

Download