05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf

Analysis

max time kernel
138s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2023 11:29

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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
1716	SKlauncher-3.2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1044	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\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\symbols\dll\ntdll.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\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\dll\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\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\ntdll.pdb	SKlauncher-3.2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1716	SKlauncher-3.2.exe
1716	SKlauncher-3.2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 3048	1716	SKlauncher-3.2.exe	83
PID 1716 wrote to memory of 3048	1716	SKlauncher-3.2.exe	83
PID 3048 wrote to memory of 1044	3048	java.exe	85
PID 3048 wrote to memory of 1044	3048	java.exe	85
PID 1716 wrote to memory of 1040	1716	SKlauncher-3.2.exe	87
PID 1716 wrote to memory of 1040	1716	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:1716
- \??\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:3048
- - 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:1044
- \??\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:1040

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
c6a672d97d3b097e2a55017aa0a89e94

SHA1
464ea5b119e882f7fbc37ccab37e062c2e330c64

SHA256
69e1a737d710e2768ec1124509c56e1fb92e5359fce5caa75e94e45e74957584

SHA512
0a53bd5f5ed18d1e34640961279c5d9104a2ed7b7c1387057f5ef857b85ba65a15e10175711a1aafe4b8931f8cc54a0bcc747d1586acad3f8646883e7c5f2a38

Download Submit
C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-5153439669000.dll

Filesize
22KB

MD5
dcd68a87b7e6edbcfde48150403b22eb

SHA1
28e4839a29725075772fccc39b44e194eb91e477

SHA256
ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c

SHA512
ac2a6bc0afcd08c56090536a937772edd54f35505c9a5837d9bc8e91c31edb6137cf5191986b3473e9e2f512950b4dbfe4088598bfd1faf47088124c70aeba71

Download Submit
memory/1040-145-0x0000020143540000-0x0000020144540000-memory.dmp

Filesize
16.0MB

Download
memory/1040-21-0x0000020143540000-0x0000020144540000-memory.dmp

Filesize
16.0MB

Download
memory/1040-28-0x0000020143520000-0x0000020143521000-memory.dmp

Filesize
4KB

Download
memory/1716-125-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-127-0x0000000003440000-0x0000000003450000-memory.dmp

Filesize
64KB

Download
memory/1716-47-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/1716-40-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-58-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-74-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/1716-79-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-82-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/1716-94-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-112-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-118-0x0000000003370000-0x0000000003380000-memory.dmp

Filesize
64KB

Download
memory/1716-119-0x00000000033A0000-0x00000000033B0000-memory.dmp

Filesize
64KB

Download
memory/1716-120-0x00000000033F0000-0x0000000003400000-memory.dmp

Filesize
64KB

Download
memory/1716-121-0x00000000034B0000-0x00000000034C0000-memory.dmp

Filesize
64KB

Download
memory/1716-122-0x00000000034E0000-0x00000000034F0000-memory.dmp

Filesize
64KB

Download
memory/1716-123-0x0000000003410000-0x0000000003420000-memory.dmp

Filesize
64KB

Download
memory/1716-124-0x0000000003420000-0x0000000003430000-memory.dmp

Filesize
64KB

Download
memory/1716-146-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-126-0x0000000003430000-0x0000000003440000-memory.dmp

Filesize
64KB

Download
memory/1716-43-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/1716-128-0x0000000003450000-0x0000000003460000-memory.dmp

Filesize
64KB

Download
memory/1716-129-0x0000000003460000-0x0000000003470000-memory.dmp

Filesize
64KB

Download
memory/1716-130-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/1716-131-0x0000000003490000-0x00000000034A0000-memory.dmp

Filesize
64KB

Download
memory/1716-132-0x00000000034A0000-0x00000000034B0000-memory.dmp

Filesize
64KB

Download
memory/1716-133-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-134-0x00000000034C0000-0x00000000034D0000-memory.dmp

Filesize
64KB

Download
memory/1716-135-0x00000000034D0000-0x00000000034E0000-memory.dmp

Filesize
64KB

Download
memory/1716-136-0x00000000034F0000-0x0000000003500000-memory.dmp

Filesize
64KB

Download
memory/1716-137-0x0000000003500000-0x0000000003510000-memory.dmp

Filesize
64KB

Download
memory/1716-138-0x0000000003520000-0x0000000003530000-memory.dmp

Filesize
64KB

Download
memory/1716-139-0x0000000003530000-0x0000000003540000-memory.dmp

Filesize
64KB

Download
memory/1716-140-0x0000000003540000-0x0000000003550000-memory.dmp

Filesize
64KB

Download
memory/1716-141-0x0000000003550000-0x0000000003560000-memory.dmp

Filesize
64KB

Download
memory/1716-142-0x0000000003560000-0x0000000003570000-memory.dmp

Filesize
64KB

Download
memory/1716-143-0x00000000030F0000-0x00000000040F0000-memory.dmp

Filesize
16.0MB

Download
memory/1716-144-0x0000000003570000-0x0000000003580000-memory.dmp

Filesize
64KB

Download
memory/3048-15-0x000002C32E420000-0x000002C32E421000-memory.dmp

Filesize
4KB

Download
memory/3048-7-0x000002C32FCC0000-0x000002C330CC0000-memory.dmp

Filesize
16.0MB

Download