Overview
overview
8Static
static
3Setup.exe
windows7-x64
7Setup.exe
windows10-2004-x64
7$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3LetsCorp.exe
windows7-x64
7LetsCorp.exe
windows10-2004-x64
7$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows7-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ss.dll
windows7-x64
3$PLUGINSDI...ss.dll
windows10-2004-x64
3driver/tap0901.sys
windows10-2004-x64
1driver/tapinstall.exe
windows7-x64
1driver/tapinstall.exe
windows10-2004-x64
1launch4.exe
windows7-x64
8launch4.exe
windows10-2004-x64
8Analysis
-
max time kernel
119s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29/09/2024, 23:52
Static task
static1
Behavioral task
behavioral1
Sample
Setup.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Setup.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240729-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
LetsCorp.exe
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
LetsCorp.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240704-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win7-20240729-en
Behavioral task
behavioral16
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
driver/tap0901.sys
Resource
win10v2004-20240802-en
Behavioral task
behavioral18
Sample
driver/tapinstall.exe
Resource
win7-20240903-en
Behavioral task
behavioral19
Sample
driver/tapinstall.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral20
Sample
launch4.exe
Resource
win7-20240903-en
Behavioral task
behavioral21
Sample
launch4.exe
Resource
win10v2004-20240802-en
General
-
Target
$PLUGINSDIR/System.dll
-
Size
11KB
-
MD5
75ed96254fbf894e42058062b4b4f0d1
-
SHA1
996503f1383b49021eb3427bc28d13b5bbd11977
-
SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
-
SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4
-
SSDEEP
192:X24sihno0bW+l97H4GB7QDs91kMtwtobTr4u+QHbazMNHT7dmNIEr:m8vJl97JeoxtN/r3z7YV
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 1644 1256 WerFault.exe 30 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 2548 wrote to memory of 1256 2548 rundll32.exe 30 PID 1256 wrote to memory of 1644 1256 rundll32.exe 31 PID 1256 wrote to memory of 1644 1256 rundll32.exe 31 PID 1256 wrote to memory of 1644 1256 rundll32.exe 31 PID 1256 wrote to memory of 1644 1256 rundll32.exe 31
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1256 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1256 -s 2203⤵
- Program crash
PID:1644
-
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