Overview
overview
6Static
static
1SteamSetup.exe
windows7-x64
6SteamSetup.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$PLUGINSDI...gs.dll
windows7-x64
3$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
3Steam.exe
windows7-x64
1Steam.exe
windows10-2004-x64
5bin/SteamService.exe
windows7-x64
1bin/SteamService.exe
windows10-2004-x64
1uninstall.exe
windows7-x64
4uninstall.exe
windows10-2004-x64
4$PLUGINSDI...LL.dll
windows7-x64
3$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...nk.dll
windows7-x64
3$PLUGINSDI...nk.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows7-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3Analysis
-
max time kernel
115s -
max time network
117s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
08/05/2024, 20:11
Static task
static1
Behavioral task
behavioral1
Sample
SteamSetup.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
SteamSetup.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win7-20240508-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win7-20240215-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/nsProcess.dll
Resource
win10v2004-20240426-en
Behavioral task
behavioral13
Sample
Steam.exe
Resource
win7-20240221-en
Behavioral task
behavioral14
Sample
Steam.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral15
Sample
bin/SteamService.exe
Resource
win7-20240220-en
Behavioral task
behavioral16
Sample
bin/SteamService.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral17
Sample
uninstall.exe
Resource
win7-20231129-en
Behavioral task
behavioral18
Sample
uninstall.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win7-20240508-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win7-20240508-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/ShellLink.dll
Resource
win10v2004-20240508-en
Behavioral task
behavioral23
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240419-en
Behavioral task
behavioral24
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20240426-en
General
-
Target
uninstall.exe
-
Size
153KB
-
MD5
2465c84f5fb9e6ce8ffe81c60bd13130
-
SHA1
b8aac13eadba39dbe637a6f1f91c65bc7b9a7ed1
-
SHA256
7993f70d54d955e522e5ddbdf30a7d07404f14f7bd6ee45ecdaf5ad16807a695
-
SHA512
f9ab90acd67be2256b26b70430bb2532c12a3f0a68754ee3c6606258646611fb0b789b55de0c18a32281bde9a50bae3fc226f01b561646801e4f5f00f17b17a0
-
SSDEEP
3072:WAe+3aJpgWXTBuO/JFONMOTc0DCY91AaC/I2U:9B+pgUJJFOSOTc0DC+1JY8
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 4500 Un_A.exe -
Loads dropped DLL 1 IoCs
pid Process 4500 Un_A.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4212 wrote to memory of 4500 4212 uninstall.exe 83 PID 4212 wrote to memory of 4500 4212 uninstall.exe 83 PID 4212 wrote to memory of 4500 4212 uninstall.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\uninstall.exe"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4212 -
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
PID:4500
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
16KB
MD546ba3881f8b27f54a8d92d600e61ee7b
SHA115933b6ece85a6d45fd78ae499b445a3bc6d2d05
SHA2564fca692a36f0c99e26b5bc7ef9db5269d2c1e21288184953898130fea9b1c4fc
SHA5126f64d3cb4634ed51710f578667b92a429aa871a0a141092df3cf7e0134a0b145f802f91126f1ce43ddb4b9d6cc6fb875c9acec22eab0cec86a72dd916e1f9eb3
-
Filesize
153KB
MD52465c84f5fb9e6ce8ffe81c60bd13130
SHA1b8aac13eadba39dbe637a6f1f91c65bc7b9a7ed1
SHA2567993f70d54d955e522e5ddbdf30a7d07404f14f7bd6ee45ecdaf5ad16807a695
SHA512f9ab90acd67be2256b26b70430bb2532c12a3f0a68754ee3c6606258646611fb0b789b55de0c18a32281bde9a50bae3fc226f01b561646801e4f5f00f17b17a0