107bb526c374d6fd9f45317c0c16e83ab50076f2bcd630caf3d6794596fae69b

Resubmissions

08/02/2023, 04:25

230208-e18yragf4s 7

08/02/2023, 04:22

230208-ezmdcshb95 7

Analysis

max time kernel
105s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
08/02/2023, 04:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

SKlauncher 3.0.exe
Size

1.2MB
MD5

32c7e3347f8e532e675d154eb07f4ccf
SHA1

5ca004745e2cdab497a7d6ef29c7efb25dc4046d
SHA256

107bb526c374d6fd9f45317c0c16e83ab50076f2bcd630caf3d6794596fae69b
SHA512

c82f3a01719f30cbb876a1395fda713ddba07b570bc188515b1b705e54e15a7cca5f71f741d51763f63aa5f40e00df06f63b341ed4db6b1be87b3ee59460dbe2
SSDEEP

24576:Dh199z42ojP6a7HJlF9eu5XFQZSIZeNGdmEE8H17UBcegl:R9zbgH3euNFQZr/oEE892cfl

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4900	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\dll\ntdll.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\symbols\dll\jvm.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\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\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\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\ntdll.pdb	javaw.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4900	EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

pid	Process
4900	javaw.exe
4900	javaw.exe
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE
4900	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 4900	2548	SKlauncher 3.0.exe	82
PID 2548 wrote to memory of 4900	2548	SKlauncher 3.0.exe	82

C:\Users\Admin\AppData\Local\Temp\SKlauncher 3.0.exe
"C:\Users\Admin\AppData\Local\Temp\SKlauncher 3.0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2548
- 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 3.0.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  PID:4900

C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4900

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\flatlaf.temp\flatlaf-windows-x86_64-4062488437000.dll

Filesize
9KB

MD5
697d496ac9f5aaab8ae025322358c61e

SHA1
2043eac8cdcc2e24b854af1eacd77a5f2a395a27

SHA256
a7273a4cf48ab3413f2c186cc95a3367a73ce99f8d45329383219d4cc27003aa

SHA512
b6702cd49a3af9f97f697565136f140692af9f8b271e672f2e91c920a23212b778583786f2377078117113647926338614a92c4a2423318b7a21ba2fe3a89838

Download Submit
memory/4900-165-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-168-0x00007FFA4A2F0000-0x00007FFA4A300000-memory.dmp

Filesize
64KB

Download
memory/4900-160-0x0000000003560000-0x0000000004560000-memory.dmp

Filesize
16.0MB

Download
memory/4900-161-0x0000000003560000-0x0000000004560000-memory.dmp

Filesize
16.0MB

Download
memory/4900-162-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-163-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-144-0x0000000003560000-0x0000000004560000-memory.dmp

Filesize
16.0MB

Download
memory/4900-166-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-164-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-167-0x00007FFA4A2F0000-0x00007FFA4A300000-memory.dmp

Filesize
64KB

Download
memory/4900-170-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-171-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-172-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download
memory/4900-173-0x00007FFA4CB50000-0x00007FFA4CB60000-memory.dmp

Filesize
64KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads