05ae2f0dd61ef10019b94c200e8df192b767bb4cc24a7e7b329ab43cc9c74caf

Resubmissions

06/01/2024, 19:42

240106-yeq1laedbm 7

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
06/01/2024, 19:42

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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
816	SKlauncher-3.2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3668	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\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\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\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\symbols\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\server\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

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
816	SKlauncher-3.2.exe
816	SKlauncher-3.2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 816 wrote to memory of 3596	816	SKlauncher-3.2.exe	89
PID 816 wrote to memory of 3596	816	SKlauncher-3.2.exe	89
PID 3596 wrote to memory of 3668	3596	java.exe	91
PID 3596 wrote to memory of 3668	3596	java.exe	91
PID 816 wrote to memory of 3996	816	SKlauncher-3.2.exe	93
PID 816 wrote to memory of 3996	816	SKlauncher-3.2.exe	93

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:816
- \??\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:3596
- - 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:3668
- \??\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:3996

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
7e83f328f413140ac20c03f921ea7e10

SHA1
c6f86349f7640b960593a8306cedd16fa9a65020

SHA256
ee098385a21e5033025af78b43060bba808a68799348763da86140ebab431c48

SHA512
7f2931caac2b5dbf8b91cfae17ccd6da02f2c33ddb564c8222b237a8ec1f7bd861941f7ced8e9483c18f4c8c6a4ebd71e801f0ece21acb792d87108d5ae55409

Download Submit
C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4788276154300.dll

Filesize
22KB

MD5
dcd68a87b7e6edbcfde48150403b22eb

SHA1
28e4839a29725075772fccc39b44e194eb91e477

SHA256
ae3352b6ad6cffaae55f4387f9f5e79365ea17f8d5fb45ef11d21c3300a49a4c

SHA512
ac2a6bc0afcd08c56090536a937772edd54f35505c9a5837d9bc8e91c31edb6137cf5191986b3473e9e2f512950b4dbfe4088598bfd1faf47088124c70aeba71

Download Submit
memory/816-84-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/816-96-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-114-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-38-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-43-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/816-113-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-47-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/816-67-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-82-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/816-83-0x0000000002630000-0x0000000002631000-memory.dmp

Filesize
4KB

Download
memory/816-101-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-85-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/816-93-0x00000000028F0000-0x00000000038F0000-memory.dmp

Filesize
16.0MB

Download
memory/3596-7-0x00000146B3BE0000-0x00000146B4BE0000-memory.dmp

Filesize
16.0MB

Download
memory/3596-15-0x00000146B2330000-0x00000146B2331000-memory.dmp

Filesize
4KB

Download
memory/3996-21-0x0000028C0D580000-0x0000028C0E580000-memory.dmp

Filesize
16.0MB

Download
memory/3996-29-0x0000028C0BCA0000-0x0000028C0BCA1000-memory.dmp

Filesize
4KB

Download