Overview
overview
10Static
static
3ReturnThie....0.exe
windows7-x64
7ReturnThie....0.exe
windows10-2004-x64
8$PLUGINSDI...er.dll
windows7-x64
3$PLUGINSDI...er.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows7-x64
3$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$PLUGINSDIR/app-64.7z
windows7-x64
7$PLUGINSDIR/app-64.7z
windows10-2004-x64
8LICENSES.c...m.html
windows7-x64
3LICENSES.c...m.html
windows10-2004-x64
3ReturnThief.exe
windows7-x64
1ReturnThief.exe
windows10-2004-x64
d3dcompiler_47.dll
windows10-2004-x64
1ffmpeg.dll
windows7-x64
1ffmpeg.dll
windows10-2004-x64
1libEGL.dll
windows7-x64
1libEGL.dll
windows10-2004-x64
1libGLESv2.dll
windows7-x64
1libGLESv2.dll
windows10-2004-x64
1locales/af.ps1
windows7-x64
3locales/af.ps1
windows10-2004-x64
3locales/en-US.pak
windows7-x64
3locales/en-US.pak
windows10-2004-x64
3locales/uk.ps1
windows7-x64
3locales/uk.ps1
windows10-2004-x64
3resources.pak
windows7-x64
3resources.pak
windows10-2004-x64
3resources/app.asar
windows7-x64
3Analysis
-
max time kernel
93s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13-11-2024 20:09
Static task
static1
Behavioral task
behavioral1
Sample
ReturnThief Setup 1.0.0.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ReturnThief Setup 1.0.0.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/SpiderBanner.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/SpiderBanner.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/StdUtils.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/System.dll
Resource
win7-20241010-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/WinShell.dll
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/WinShell.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/app-64.7z
Resource
win7-20240729-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/app-64.7z
Resource
win10v2004-20241007-en
Behavioral task
behavioral13
Sample
LICENSES.chromium.html
Resource
win7-20241010-en
Behavioral task
behavioral14
Sample
LICENSES.chromium.html
Resource
win10v2004-20241007-en
Behavioral task
behavioral15
Sample
ReturnThief.exe
Resource
win7-20240903-en
Behavioral task
behavioral16
Sample
ReturnThief.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral17
Sample
d3dcompiler_47.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral18
Sample
ffmpeg.dll
Resource
win7-20240903-en
Behavioral task
behavioral19
Sample
ffmpeg.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral20
Sample
libEGL.dll
Resource
win7-20241010-en
Behavioral task
behavioral21
Sample
libEGL.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral22
Sample
libGLESv2.dll
Resource
win7-20240903-en
Behavioral task
behavioral23
Sample
libGLESv2.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral24
Sample
locales/af.ps1
Resource
win7-20240903-en
Behavioral task
behavioral25
Sample
locales/af.ps1
Resource
win10v2004-20241007-en
Behavioral task
behavioral26
Sample
locales/en-US.pak
Resource
win7-20240903-en
Behavioral task
behavioral27
Sample
locales/en-US.pak
Resource
win10v2004-20241007-en
Behavioral task
behavioral28
Sample
locales/uk.ps1
Resource
win7-20240708-en
Behavioral task
behavioral29
Sample
locales/uk.ps1
Resource
win10v2004-20241007-en
Behavioral task
behavioral30
Sample
resources.pak
Resource
win7-20240903-en
Behavioral task
behavioral31
Sample
resources.pak
Resource
win10v2004-20241007-en
Behavioral task
behavioral32
Sample
resources/app.asar
Resource
win7-20240903-en
General
-
Target
$PLUGINSDIR/StdUtils.dll
-
Size
100KB
-
MD5
c6a6e03f77c313b267498515488c5740
-
SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15
-
SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
-
SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
-
SSDEEP
3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v
Malware Config
Signatures
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1088 4556 WerFault.exe rundll32.exe -
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.
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3368 wrote to memory of 4556 3368 rundll32.exe rundll32.exe PID 3368 wrote to memory of 4556 3368 rundll32.exe rundll32.exe PID 3368 wrote to memory of 4556 3368 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3368 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StdUtils.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4556 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 6283⤵
- Program crash
PID:1088
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 45561⤵PID:4148