Overview
overview
4Static
static
3lunar-clie..._3.exe
windows11-21h2-x64
4$PLUGINSDIR/INetC.dll
windows11-21h2-x64
3$PLUGINSDI...er.dll
windows11-21h2-x64
1$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...ll.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...7z.dll
windows11-21h2-x64
3$R0/Uninst...nt.exe
windows11-21h2-x64
4$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...ll.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3Analysis
- max time kernel
1388s - max time network
1172s - platform
windows11-21h2_x64 - resource
win11-20240412-en - resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system - submitted
16/04/2024, 16:48
Static task
static1
Behavioral task
behavioral1
Sample
lunar-client-v3_2_3.exe
Resource
win11-20240412-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/INetC.dll
Resource
win11-20240412-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/SpiderBanner.dll
Resource
win11-20240412-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20240412-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win11-20240412-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/WinShell.dll
Resource
win11-20240412-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20240412-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win11-20240412-en
Behavioral task
behavioral9
Sample
$R0/Uninstall Lunar Client.exe
Resource
win11-20240412-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20240412-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/System.dll
Resource
win11-20240412-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/WinShell.dll
Resource
win11-20240412-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20240412-en
General
- Target $PLUGINSDIR/nsis7z.dll
- Size 424KB
- Sample240416-vbk4dsgg9w
- SHA256 b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592
- MD5 80e44ce4895304c6a3a831310fbf8cd0
- SHA1 36bd49ae21c460be5753a904b4501f1abca53508
- SHA512 c8ba7b1f9113ead23e993e74a48c4427ae3562c1f6d9910b2bbe6806c9107cf7d94bc7d204613e4743d0cd869e00dafd4fb54aad1e8adb69c553f3b9e5bc64df
- SSDEEP 6144:aUWQQ5O3fz0NG3ucDaEUTWfk+ZA0NrCL/k+uyoyBOX1okfW7w+Pfzqibckl:an5QEG39fPAkrE4yrBOXDfaNbck
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 1420 4400 WerFault.exe 80 - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 396 wrote to memory of 4400 396 rundll32.exe 80 PID 396 wrote to memory of 4400 396 rundll32.exe 80 PID 396 wrote to memory of 4400 396 rundll32.exe 80
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:396 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsis7z.dll,#12⤵PID:4400
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4400 -s 4683⤵
- Program crash
PID:1420
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4400 -ip 44001⤵PID:2004