Overview
overview
4Static
static
3Lunar Clie....3.exe
windows7-x64
4Lunar Clie....3.exe
windows10-2004-x64
4$PLUGINSDIR/INetC.dll
windows7-x64
3$PLUGINSDIR/INetC.dll
windows10-2004-x64
3$PLUGINSDI...er.dll
windows7-x64
1$PLUGINSDI...er.dll
windows10-2004-x64
1$PLUGINSDI...ls.dll
windows7-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...ll.dll
windows7-x64
3$PLUGINSDI...ll.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...7z.dll
windows7-x64
3$PLUGINSDI...7z.dll
windows10-2004-x64
3$R0/Uninst...nt.exe
windows7-x64
4$R0/Uninst...nt.exe
windows10-2004-x64
4$PLUGINSDI...ls.dll
windows7-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...ll.dll
windows7-x64
3$PLUGINSDI...ll.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3Analysis
-
max time kernel
92s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-es -
resource tags
arch:x64arch:x86image:win10v2004-20240226-eslocale:es-esos:windows10-2004-x64systemwindows -
submitted
03-03-2024 15:00
Static task
static1
Behavioral task
behavioral1
Sample
Lunar Client v3.2.3.exe
Resource
win7-20240221-es
Behavioral task
behavioral2
Sample
Lunar Client v3.2.3.exe
Resource
win10v2004-20240226-es
Behavioral task
behavioral3
Sample
$PLUGINSDIR/INetC.dll
Resource
win7-20240220-es
Behavioral task
behavioral4
Sample
$PLUGINSDIR/INetC.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral5
Sample
$PLUGINSDIR/SpiderBanner.dll
Resource
win7-20240215-es
Behavioral task
behavioral6
Sample
$PLUGINSDIR/SpiderBanner.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral7
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win7-20240221-es
Behavioral task
behavioral8
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral9
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240220-es
Behavioral task
behavioral10
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral11
Sample
$PLUGINSDIR/WinShell.dll
Resource
win7-20240221-es
Behavioral task
behavioral12
Sample
$PLUGINSDIR/WinShell.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral13
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240221-es
Behavioral task
behavioral14
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral15
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win7-20240221-es
Behavioral task
behavioral16
Sample
$PLUGINSDIR/nsis7z.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral17
Sample
$R0/Uninstall Lunar Client.exe
Resource
win7-20240221-es
Behavioral task
behavioral18
Sample
$R0/Uninstall Lunar Client.exe
Resource
win10v2004-20240226-es
Behavioral task
behavioral19
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win7-20240220-es
Behavioral task
behavioral20
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral21
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240215-es
Behavioral task
behavioral22
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral23
Sample
$PLUGINSDIR/WinShell.dll
Resource
win7-20240221-es
Behavioral task
behavioral24
Sample
$PLUGINSDIR/WinShell.dll
Resource
win10v2004-20240226-es
Behavioral task
behavioral25
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240221-es
Behavioral task
behavioral26
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240226-es
General
-
Target
$R0/Uninstall Lunar Client.exe
-
Size
404KB
-
MD5
227c1f9fe7c7f6fb24a451a5ca84e722
-
SHA1
9c34be548c0b2affd930d05c1b315a5cbe9bca45
-
SHA256
bafcf2b563e935de1c9d2d55413d25b9a06a8ee8b4cdab49ba7bfe0bfb5c668a
-
SHA512
1fde79719e176eaa9f23211f9679d5406c219b2ae074227306001ea88c3c2f10c1ed1e0e52b10bc1e0ca9adc4cdc82d2da474ce7e59defaae816655ddc0fce66
-
SSDEEP
3072:Wn77v00hEoDEtauTsqBGeQIfxqxAjDsksbfVl1snhl+l2L0Sa9/l7a4vZAzLmDVH:W740IEa+J+Rql1DKs2t0EyL+ya2
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
Processes:
Un_A.exepid process 1568 Un_A.exe -
Loads dropped DLL 1 IoCs
Processes:
Un_A.exepid process 1568 Un_A.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
Uninstall Lunar Client.exedescription pid process target process PID 436 wrote to memory of 1568 436 Uninstall Lunar Client.exe Un_A.exe PID 436 wrote to memory of 1568 436 Uninstall Lunar Client.exe Un_A.exe PID 436 wrote to memory of 1568 436 Uninstall Lunar Client.exe Un_A.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall Lunar Client.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:436 -
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe"C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1568
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
12KB
MD50d7ad4f45dc6f5aa87f606d0331c6901
SHA148df0911f0484cbe2a8cdd5362140b63c41ee457
SHA2563eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
SHA512c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
-
Filesize
404KB
MD5227c1f9fe7c7f6fb24a451a5ca84e722
SHA19c34be548c0b2affd930d05c1b315a5cbe9bca45
SHA256bafcf2b563e935de1c9d2d55413d25b9a06a8ee8b4cdab49ba7bfe0bfb5c668a
SHA5121fde79719e176eaa9f23211f9679d5406c219b2ae074227306001ea88c3c2f10c1ed1e0e52b10bc1e0ca9adc4cdc82d2da474ce7e59defaae816655ddc0fce66