Overview
overview
10Static
static
1SteamSetup.exe
windows11-21h2-x64
10$PLUGINSDI...ls.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3$PLUGINSDI...ss.dll
windows11-21h2-x64
3Steam.exe
windows11-21h2-x64
4bin/SteamService.exe
windows11-21h2-x64
1uninstall.exe
windows11-21h2-x64
4$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...nk.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3Analysis
-
max time kernel
147s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
07-12-2024 23:35
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win11-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20241007-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20241007-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20241007-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win11-20241007-en
Behavioral task
behavioral7
Sample
Steam.exe
Resource
win11-20241007-en
Behavioral task
behavioral8
Sample
bin/SteamService.exe
Resource
win11-20241007-en
Behavioral task
behavioral9
Sample
uninstall.exe
Resource
win11-20241007-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20241023-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win11-20241007-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20241007-en
General
-
Target
uninstall.exe
-
Size
155KB
-
MD5
32109e2aac377fa07b849f4f4033edc5
-
SHA1
a7b87a221744fb2e36327be0a34c17b7d734c47f
-
SHA256
72ffe8859eaa63637f5a62b7c454241db35938f8326f6ccf20352e00f8df2fe5
-
SHA512
688d9b51060d84c4e2dd0ddbb20d43bbc8bf93a903f26e855f546335bd7a5c9ef5c6f888dff35d379cbb1d782c5e231b33831b7272cde2b40c2d7fc2b85ffc0d
-
SSDEEP
3072:iIAe+3aJpgWXTBuq/JFONM2cZ6iKowuq12ApG3s/6:izB+pgURJFOS21iQ5i+6
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 3684 Un_A.exe -
Loads dropped DLL 1 IoCs
pid Process 3684 Un_A.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 2 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 uninstall.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Un_A.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3152 wrote to memory of 3684 3152 uninstall.exe 77 PID 3152 wrote to memory of 3684 3152 uninstall.exe 77 PID 3152 wrote to memory of 3684 3152 uninstall.exe 77
Processes
-
C:\Users\Admin\AppData\Local\Temp\uninstall.exe"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3152 -
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\2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:3684
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
16KB
MD546ba3881f8b27f54a8d92d600e61ee7b
SHA115933b6ece85a6d45fd78ae499b445a3bc6d2d05
SHA2564fca692a36f0c99e26b5bc7ef9db5269d2c1e21288184953898130fea9b1c4fc
SHA5126f64d3cb4634ed51710f578667b92a429aa871a0a141092df3cf7e0134a0b145f802f91126f1ce43ddb4b9d6cc6fb875c9acec22eab0cec86a72dd916e1f9eb3
-
Filesize
155KB
MD532109e2aac377fa07b849f4f4033edc5
SHA1a7b87a221744fb2e36327be0a34c17b7d734c47f
SHA25672ffe8859eaa63637f5a62b7c454241db35938f8326f6ccf20352e00f8df2fe5
SHA512688d9b51060d84c4e2dd0ddbb20d43bbc8bf93a903f26e855f546335bd7a5c9ef5c6f888dff35d379cbb1d782c5e231b33831b7272cde2b40c2d7fc2b85ffc0d