c3db9475c3ab6b53d8f6d711f587e5218c9b8d332229a208277bc0b27a24b620

Analysis

max time kernel
35s
max time network
87s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
16/06/2023, 22:09

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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
2408	javaw.exe

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2408	javaw.exe
2408	javaw.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2408	2084	SKlauncher 3.1.exe	83
PID 2084 wrote to memory of 2408	2084	SKlauncher 3.1.exe	83
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 4520 wrote to memory of 4888	4520	firefox.exe	93
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94
PID 1232 wrote to memory of 1388	1232	firefox.exe	94

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:2084
- 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
  - Suspicious use of SetWindowsHookEx
  PID:2408

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe"
  2⤵
  - Checks processor information in registry
  PID:4888

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe"
  2⤵
  - Checks processor information in registry
  PID:1388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4486401562000.dll

Filesize
21KB

MD5
4ca3290a99adadde557930cd481d7539

SHA1
26034442a76131dd3d37c8f28b6e9bebc7c1fe7c

SHA256
dd130c68dc36bcedbe51a6b8ec3b3358a460d45952f6280e12331f48850b6b3b

SHA512
9341c60f92dd3f89f82555055924bdae6fcce1e4cd13a7dde5129ebdce04bae377292237a2ed6c3e7623b242e82b01c7ed1717af4d7db8ca473e9fd7b7b190d5

Download Submit
memory/2084-133-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2408-144-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-148-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-151-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-158-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-171-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-182-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-198-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2408-213-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download