Overview
overview
7Static
static
3DFX.for.Re...up.exe
windows7-x64
7DFX.for.Re...up.exe
windows10-2004-x64
7$COMMONFIL...an.exe
windows7-x64
3$COMMONFIL...an.exe
windows10-2004-x64
3$COMMONFIL...ni.exe
windows7-x64
3$COMMONFIL...ni.exe
windows10-2004-x64
3$COMMONFIL...FX.exe
windows7-x64
3$COMMONFIL...FX.exe
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...dl.dll
windows7-x64
3$PLUGINSDI...dl.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$_0_/dfxbtn.dll
windows7-x64
3$_0_/dfxbtn.dll
windows10-2004-x64
3$_1_/dfxrealr.dll
windows7-x64
3$_1_/dfxrealr.dll
windows10-2004-x64
3RealPlayer...te.exe
windows7-x64
1RealPlayer...te.exe
windows10-2004-x64
3RealPlayer...il.exe
windows7-x64
1RealPlayer...il.exe
windows10-2004-x64
3RealPlayer...rs.exe
windows7-x64
1RealPlayer...rs.exe
windows10-2004-x64
3RealPlayer...al.chm
windows7-x64
1RealPlayer...al.chm
windows10-2004-x64
1DFX.for.Re...pk.dll
windows7-x64
7DFX.for.Re...pk.dll
windows10-2004-x64
7Analysis
-
max time kernel
93s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
02-10-2024 01:28
Static task
static1
Behavioral task
behavioral1
Sample
DFX.for.RealPlayer.v9.103/3ddown.com_setup.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
DFX.for.RealPlayer.v9.103/3ddown.com_setup.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$COMMONFILES/DFX/Skins/Obsidian/Obsidian.exe
Resource
win7-20240729-en
Behavioral task
behavioral4
Sample
$COMMONFILES/DFX/Skins/Obsidian/Obsidian.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$COMMONFILES/DFX/Skins/Obsidian_mini/Obsidian_mini.exe
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
$COMMONFILES/DFX/Skins/Obsidian_mini/Obsidian_mini.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$COMMONFILES/DFX/Skins/SoundFX/SoundFX.exe
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
$COMMONFILES/DFX/Skins/SoundFX/SoundFX.exe
Resource
win10v2004-20240910-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240708-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
$PLUGINSDIR/NSISdl.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral13
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral15
Sample
$_0_/dfxbtn.dll
Resource
win7-20240729-en
Behavioral task
behavioral16
Sample
$_0_/dfxbtn.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
$_1_/dfxrealr.dll
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
$_1_/dfxrealr.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
RealPlayer/Apps/record_date.exe
Resource
win7-20240903-en
Behavioral task
behavioral20
Sample
RealPlayer/Apps/record_date.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
RealPlayer/Apps/record_email.exe
Resource
win7-20240729-en
Behavioral task
behavioral22
Sample
RealPlayer/Apps/record_email.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
RealPlayer/Apps/registryCleanUsers.exe
Resource
win7-20240708-en
Behavioral task
behavioral24
Sample
RealPlayer/Apps/registryCleanUsers.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
RealPlayer/Help/DFX Manual.chm
Resource
win7-20240903-en
Behavioral task
behavioral26
Sample
RealPlayer/Help/DFX Manual.chm
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
DFX.for.RealPlayer.v9.103/lpk.dll
Resource
win7-20240704-en
Behavioral task
behavioral28
Sample
DFX.for.RealPlayer.v9.103/lpk.dll
Resource
win10v2004-20240802-en
General
-
Target
$_0_/dfxbtn.dll
-
Size
81KB
-
MD5
3969534dade35fc53ced9d0b0b56fe91
-
SHA1
f655564925c6566d3f438c069a8d74dbc44f9c87
-
SHA256
3e852471bb31064c46bbadd22a68ab30590da2937ab52bc3c2f1b89d00a80375
-
SHA512
02c651833c4dacad3cced0d27f9c0d6cebc5f7e3dbe17ba33684c13930306895f5680b39579bda9ce8c0d216b60a0949c81acd9992e53070ac6fd2dd24eb9cd3
-
SSDEEP
1536:hUYbPZCuH32V3NzMFVSk/NHg7gajR5x5Gd5uvKo:CYzZvH3izq3mR5x8o
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 880 5068 WerFault.exe 81 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 428 wrote to memory of 5068 428 rundll32.exe 81 PID 428 wrote to memory of 5068 428 rundll32.exe 81 PID 428 wrote to memory of 5068 428 rundll32.exe 81
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$_0_\dfxbtn.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:428 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$_0_\dfxbtn.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:5068 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5068 -s 6123⤵
- Program crash
PID:880
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5068 -ip 50681⤵PID:5020