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Analysis
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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
27/01/2025, 15:57
Static task
static1
Behavioral task
behavioral1
Sample
a22b75fa068f4c1267338be452e63ceeeb5c147a48782f0ba9f95d97ce85788b.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a22b75fa068f4c1267338be452e63ceeeb5c147a48782f0ba9f95d97ce85788b.dll
Resource
win10v2004-20241007-en
General
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Target
a22b75fa068f4c1267338be452e63ceeeb5c147a48782f0ba9f95d97ce85788b.dll
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Size
137KB
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MD5
112cf157189c381867bd38ff908e2ceb
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SHA1
b275452d72d1dc8da315085f406ecab8ac819dd8
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SHA256
a22b75fa068f4c1267338be452e63ceeeb5c147a48782f0ba9f95d97ce85788b
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SHA512
c95e5e6f7ec484d74c92682ef05f2d1fe9f990a5988736884596f28fc57941983dc50c1af99a020fa29006d2ddd82b98c70864d43676fc28a833c8269b9540b9
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SSDEEP
3072:SR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuF:325GgFny61mraf
Malware Config
Signatures
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Boot or Logon Autostart Execution: Port Monitors 1 TTPs 2 IoCs
Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll" rundll32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor rundll32.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Spooler\ImagePath = "Spoolsv.exe" rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\com\comb.dll rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\AppPatch\ComBack.Dll rundll32.exe File created C:\Windows\AppPatch\ComBack.Dll rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2752 2672 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 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2636 wrote to memory of 2672 2636 rundll32.exe 30 PID 2672 wrote to memory of 2752 2672 rundll32.exe 31 PID 2672 wrote to memory of 2752 2672 rundll32.exe 31 PID 2672 wrote to memory of 2752 2672 rundll32.exe 31 PID 2672 wrote to memory of 2752 2672 rundll32.exe 31
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a22b75fa068f4c1267338be452e63ceeeb5c147a48782f0ba9f95d97ce85788b.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2636 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a22b75fa068f4c1267338be452e63ceeeb5c147a48782f0ba9f95d97ce85788b.dll,#12⤵
- Boot or Logon Autostart Execution: Port Monitors
- Sets service image path in registry
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2672 -s 2283⤵
- Program crash
PID:2752
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