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
117s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
resources/app.asar
-
Size
65.3MB
-
MD5
4f245229ceee2b823303a3c5db24b1bb
-
SHA1
aba6e0b52edf08bd70fd0a051b1c8321de915cc6
-
SHA256
e8165e45d402a8e63e53a19ea08e2748723aed1eac4a7b8d7c901aa22240e6e3
-
SHA512
4b05407ff831450b06ee97462e41166b50866677e91db315b1745e5214c14331e2b998968ac5c664801070fc85588241677f85f16b921917cc128ef26cae5aa8
-
SSDEEP
196608:czsSrubKylBcEK1u/gNGp/GIpKcYU+x1gsBrpBVb/zC7322CNk/gNk5soeSRdBig:quFwEKPksSLqHBFBd/utCZIRjF5+bm
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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:
AcroRd32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe -
Modifies registry class 1 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
AcroRd32.exepid process 2604 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
AcroRd32.exepid process 2604 AcroRd32.exe 2604 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
cmd.exerundll32.exedescription pid process target process PID 2736 wrote to memory of 2664 2736 cmd.exe rundll32.exe PID 2736 wrote to memory of 2664 2736 cmd.exe rundll32.exe PID 2736 wrote to memory of 2664 2736 cmd.exe rundll32.exe PID 2664 wrote to memory of 2604 2664 rundll32.exe AcroRd32.exe PID 2664 wrote to memory of 2604 2664 rundll32.exe AcroRd32.exe PID 2664 wrote to memory of 2604 2664 rundll32.exe AcroRd32.exe PID 2664 wrote to memory of 2604 2664 rundll32.exe AcroRd32.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\resources\app.asar1⤵
- Suspicious use of WriteProcessMemory
PID:2736 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources\app.asar2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\resources\app.asar"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2604
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3KB
MD5493195f2dc2f0123a115f4c5d4782cf8
SHA16d8b9ada216229c4249d60747968b317b4810c62
SHA256e75de967a266848ebb55869166a9478fffd91d7490a04297a2e4d6109bcd41bf
SHA5122329423246c8345a1ee82ce129861c8e54dcd7b4920945fe50191bf104397e6a710f66b5d49a5d59be652756518d265bc3597c1ce9cd6fa01388d2c5da35d107