c3db9475c3ab6b53d8f6d711f587e5218c9b8d332229a208277bc0b27a24b620

Analysis

max time kernel
192s
max time network
225s
platform
windows10-2004_x64
resource
win10v2004-20230703-es
resource tags

arch:x64arch:x86image:win10v2004-20230703-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
17/07/2023, 20:15

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General

Target

SKlauncher-3.1.exe
Size

1.1MB
MD5

021b53abfc25a261077282498e5726a0
SHA1

ba7f38a28444504e6e8e1f995cc40ceb70ff6409
SHA256

c3db9475c3ab6b53d8f6d711f587e5218c9b8d332229a208277bc0b27a24b620
SHA512

484bb65ecb1ccd3e5472a27737fd2fa4471240aeefcf4bfdeaf4e49636cec9b3e43a5c2feb7134074c92af01f52a456b8074aca8269480e210cfa3b51acae81d
SSDEEP

24576:7h1tjL2uma7hLQKaikK21SHCJ3ny+SGiPsGSa7tLC+/e0cUEcnr:sghMKai1viny6iPH5hF/e0m2r

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4440	javaw.exe

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\dll\ntdll.pdb	javaw.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4440	javaw.exe
4440	javaw.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 4440	1812	SKlauncher-3.1.exe	86
PID 1812 wrote to memory of 4440	1812	SKlauncher-3.1.exe	86

C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.1.exe
"C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -Xms32m -Xmx256m -jar "C:\Users\Admin\AppData\Local\Temp\SKlauncher-3.1.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  PID:4440

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2488

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4794842085000.dll

Filesize
21KB

MD5
4ca3290a99adadde557930cd481d7539

SHA1
26034442a76131dd3d37c8f28b6e9bebc7c1fe7c

SHA256
dd130c68dc36bcedbe51a6b8ec3b3358a460d45952f6280e12331f48850b6b3b

SHA512
9341c60f92dd3f89f82555055924bdae6fcce1e4cd13a7dde5129ebdce04bae377292237a2ed6c3e7623b242e82b01c7ed1717af4d7db8ca473e9fd7b7b190d5

Download Submit
memory/1812-133-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4440-225-0x00000000034D0000-0x00000000034E0000-memory.dmp

Filesize
64KB

Download
memory/4440-149-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4440-145-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4440-167-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-181-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4440-182-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4440-186-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-198-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-205-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4440-211-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-216-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-219-0x0000000003470000-0x0000000003480000-memory.dmp

Filesize
64KB

Download
memory/4440-220-0x00000000034C0000-0x00000000034D0000-memory.dmp

Filesize
64KB

Download
memory/4440-222-0x0000000003550000-0x0000000003560000-memory.dmp

Filesize
64KB

Download
memory/4440-223-0x00000000035B0000-0x00000000035C0000-memory.dmp

Filesize
64KB

Download
memory/4440-224-0x00000000035F0000-0x0000000003600000-memory.dmp

Filesize
64KB

Download
memory/4440-221-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-138-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-236-0x0000000003590000-0x00000000035A0000-memory.dmp

Filesize
64KB

Download
memory/4440-228-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-229-0x0000000003510000-0x0000000003520000-memory.dmp

Filesize
64KB

Download
memory/4440-227-0x0000000003500000-0x0000000003510000-memory.dmp

Filesize
64KB

Download
memory/4440-230-0x0000000003530000-0x0000000003540000-memory.dmp

Filesize
64KB

Download
memory/4440-231-0x0000000003540000-0x0000000003550000-memory.dmp

Filesize
64KB

Download
memory/4440-233-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-234-0x0000000003570000-0x0000000003580000-memory.dmp

Filesize
64KB

Download
memory/4440-235-0x0000000003580000-0x0000000003590000-memory.dmp

Filesize
64KB

Download
memory/4440-232-0x0000000003560000-0x0000000003570000-memory.dmp

Filesize
64KB

Download
memory/4440-226-0x00000000034F0000-0x0000000003500000-memory.dmp

Filesize
64KB

Download
memory/4440-238-0x00000000035C0000-0x00000000035D0000-memory.dmp

Filesize
64KB

Download
memory/4440-237-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-239-0x00000000035D0000-0x00000000035E0000-memory.dmp

Filesize
64KB

Download
memory/4440-240-0x0000000003600000-0x0000000003610000-memory.dmp

Filesize
64KB

Download
memory/4440-241-0x0000000003610000-0x0000000003620000-memory.dmp

Filesize
64KB

Download
memory/4440-242-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download
memory/4440-243-0x00000000031F0000-0x00000000041F0000-memory.dmp

Filesize
16.0MB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads