Overview
overview
10Static
static
3processlas...64.exe
windows10-2004-x64
$PLUGINSDIR/INetC.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3CPUEater.exe
windows10-2004-x64
1Insights.exe
windows10-2004-x64
1InstallHelper.exe
windows10-2004-x64
1LogViewer.exe
windows10-2004-x64
1ProcessGovernor.exe
windows10-2004-x64
1ProcessLasso.exe
windows10-2004-x64
9ProcessLas...er.exe
windows10-2004-x64
5QuickUpgrade.exe
windows10-2004-x64
6ThreadRacer.exe
windows10-2004-x64
1TweakScheduler.exe
windows10-2004-x64
1bitsumsess...nt.exe
windows10-2004-x64
1pl-update.cmd
windows10-2004-x64
1pl.cmd
windows10-2004-x64
7plActivate.exe
windows10-2004-x64
1pl_rsrc_bulgarian.dll
windows10-2004-x64
1pl_rsrc_chinese.dll
windows10-2004-x64
1pl_rsrc_ch...al.dll
windows10-2004-x64
1pl_rsrc_english.dll
windows10-2004-x64
1pl_rsrc_finnish.dll
windows10-2004-x64
1pl_rsrc_french.dll
windows10-2004-x64
10pl_rsrc_german.dll
windows10-2004-x64
1pl_rsrc_italian.dll
windows10-2004-x64
1pl_rsrc_japanese.dll
windows10-2004-x64
1pl_rsrc_korean.dll
windows10-2004-x64
1pl_rsrc_polish.dll
windows10-2004-x64
1pl_rsrc_ptbr.dll
windows10-2004-x64
1pl_rsrc_russian.dll
windows10-2004-x64
1pl_rsrc_slovenian.dll
windows10-2004-x64
1Analysis
-
max time kernel
1756s -
max time network
1143s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
06-07-2024 19:00
Static task
static1
Behavioral task
behavioral1
Sample
processlassosetup64.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/INetC.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral5
Sample
CPUEater.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral6
Sample
Insights.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral7
Sample
InstallHelper.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral8
Sample
LogViewer.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral9
Sample
ProcessGovernor.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral10
Sample
ProcessLasso.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral11
Sample
ProcessLassoLauncher.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral12
Sample
QuickUpgrade.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral13
Sample
ThreadRacer.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral14
Sample
TweakScheduler.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
bitsumsessionagent.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral16
Sample
pl-update.cmd
Resource
win10v2004-20240704-en
Behavioral task
behavioral17
Sample
pl.cmd
Resource
win10v2004-20240704-en
Behavioral task
behavioral18
Sample
plActivate.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral19
Sample
pl_rsrc_bulgarian.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral20
Sample
pl_rsrc_chinese.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral21
Sample
pl_rsrc_chinese_traditional.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral22
Sample
pl_rsrc_english.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral23
Sample
pl_rsrc_finnish.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral24
Sample
pl_rsrc_french.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral25
Sample
pl_rsrc_german.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral26
Sample
pl_rsrc_italian.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral27
Sample
pl_rsrc_japanese.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral28
Sample
pl_rsrc_korean.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral29
Sample
pl_rsrc_polish.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral30
Sample
pl_rsrc_ptbr.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral31
Sample
pl_rsrc_russian.dll
Resource
win10v2004-20240704-en
Behavioral task
behavioral32
Sample
pl_rsrc_slovenian.dll
Resource
win10v2004-20240704-en
General
-
Target
ProcessLassoLauncher.exe
-
Size
397KB
-
MD5
ffba9b08c6fb3394e03b57f2fb4cec9a
-
SHA1
21dfe7d8910159b769c248e56770a1dca9810b8c
-
SHA256
9048d95e30d8ebe36b248da25ac9df5104c231ec3b0ae83a72ac31b513c13061
-
SHA512
34fa80088b06566c660b19b4c1bbfcbce3dfbb50485bd9ede097577a2309c4f41afa5086541a87b25bda8b2e745336c135363b615782b84911334c959e921614
-
SSDEEP
3072:c1hBjA8ZOHWQ97VpEwYNY/SzoDlArk7HoZ7WK7Tl/x:ghhA8IHW2VWIAr7WGp
Malware Config
Signatures
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation ProcessLassoLauncher.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ProcessLasso.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ProcessLasso.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 3344 ProcessLasso.exe Token: SeDebugPrivilege 3344 ProcessLasso.exe Token: SeChangeNotifyPrivilege 3344 ProcessLasso.exe Token: SeIncBasePriorityPrivilege 3344 ProcessLasso.exe Token: SeIncreaseQuotaPrivilege 3344 ProcessLasso.exe Token: SeCreateGlobalPrivilege 3344 ProcessLasso.exe Token: SeProfSingleProcessPrivilege 3344 ProcessLasso.exe Token: SeBackupPrivilege 3344 ProcessLasso.exe Token: SeRestorePrivilege 3344 ProcessLasso.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1440 wrote to memory of 3344 1440 ProcessLassoLauncher.exe 83 PID 1440 wrote to memory of 3344 1440 ProcessLassoLauncher.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\ProcessLassoLauncher.exe"C:\Users\Admin\AppData\Local\Temp\ProcessLassoLauncher.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Users\Admin\AppData\Local\Temp\ProcessLasso.exe"C:\Users\Admin\AppData\Local\Temp\ProcessLasso.exe" "C:\Users\Admin\AppData\Local\Temp\ProcessLassoLauncher.exe"2⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:3344
-