Overview
overview
10Static
static
3QtCore4.dll
windows7-x64
3QtCore4.dll
windows10-2004-x64
3QtGui4.dll
windows7-x64
3QtGui4.dll
windows10-2004-x64
3QtNetwork4.dll
windows7-x64
3QtNetwork4.dll
windows10-2004-x64
3QtWebKit4.dll
windows7-x64
3QtWebKit4.dll
windows10-2004-x64
3ReFB.exe
windows7-x64
10ReFB.exe
windows10-2004-x64
10msvcp100.dll
windows7-x64
3msvcp100.dll
windows10-2004-x64
3msvcr100.dll
windows7-x64
3msvcr100.dll
windows10-2004-x64
3Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-01-2025 03:55
Static task
static1
Behavioral task
behavioral1
Sample
QtCore4.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
QtCore4.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
QtGui4.dll
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
QtGui4.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
QtNetwork4.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
QtNetwork4.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
QtWebKit4.dll
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
QtWebKit4.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
ReFB.exe
Resource
win7-20240729-en
Behavioral task
behavioral10
Sample
ReFB.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral11
Sample
msvcp100.dll
Resource
win7-20241010-en
Behavioral task
behavioral12
Sample
msvcp100.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral13
Sample
msvcr100.dll
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
msvcr100.dll
Resource
win10v2004-20241007-en
General
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Target
QtCore4.dll
-
Size
2.5MB
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MD5
fecc62a37d37d9759e6b02041728aa23
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SHA1
0c5f646caef7a6e9073d58ed698f6cfbfb2883a3
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SHA256
94c1395153d7758900979351e633ab68d22ae9b306ef8e253b712a1aab54c805
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SHA512
698f90f1248dacbd4bdc49045a4e80972783d9dcec120d187abd08f5ef03224b511f7870320938b7e8be049c243ffb1c450c847429434ef2e2c09288cb9286a6
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SSDEEP
49152:VTFgiFpGXOENKSgjGkJsv6tWKFdu9C6TELyvL/6mShMZtmjNUVrciV5P+7QVg07/:V+iDaWjxJsv6tWKFdu9CZgfQ
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 2668 2676 WerFault.exe 30 -
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 11 IoCs
description pid Process procid_target PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2640 wrote to memory of 2676 2640 rundll32.exe 30 PID 2676 wrote to memory of 2668 2676 rundll32.exe 31 PID 2676 wrote to memory of 2668 2676 rundll32.exe 31 PID 2676 wrote to memory of 2668 2676 rundll32.exe 31 PID 2676 wrote to memory of 2668 2676 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\QtCore4.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2640 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\QtCore4.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 2243⤵
- Program crash
PID:2668
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