Analysis
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max time kernel
90s -
max time network
124s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
13-07-2021 13:06
Static task
static1
Behavioral task
behavioral1
Sample
5f70bb21955777e10ca01ead27d16b44.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
5f70bb21955777e10ca01ead27d16b44.exe
Resource
win10v20210410
General
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Target
5f70bb21955777e10ca01ead27d16b44.exe
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Size
1.0MB
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MD5
5f70bb21955777e10ca01ead27d16b44
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SHA1
2f7d8adfb506718346d94177103d1d976380a9b4
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SHA256
84c1024292142c4d234701e830aedcbd865311693f0d8ac75596deee268c7db5
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SHA512
69f55a7902a4241c008c745a8f3bbc261bf0f9698f0b0b93aafb6ab8ce47b4e0eba47879e32404d6c3cdfab14cf55f60d5de4c34050bcb377f7f92a5a1ed16f4
Malware Config
Signatures
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A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty Payload 2 IoCs
resource yara_rule behavioral2/files/0x000100000001ab62-131.dat family_stormkitty behavioral2/files/0x000100000001ab62-132.dat family_stormkitty -
A310logger Executable 2 IoCs
resource yara_rule behavioral2/files/0x000100000001ab62-131.dat a310logger behavioral2/files/0x000100000001ab62-132.dat a310logger -
Executes dropped EXE 2 IoCs
pid Process 1904 PASSWORDSNET4.exe 2124 CREDITCARDNET4.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3896 set thread context of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier PASSWORDSNET4.exe Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 PASSWORDSNET4.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 936 5f70bb21955777e10ca01ead27d16b44.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 3896 wrote to memory of 936 3896 5f70bb21955777e10ca01ead27d16b44.exe 79 PID 936 wrote to memory of 1904 936 5f70bb21955777e10ca01ead27d16b44.exe 80 PID 936 wrote to memory of 1904 936 5f70bb21955777e10ca01ead27d16b44.exe 80 PID 936 wrote to memory of 2124 936 5f70bb21955777e10ca01ead27d16b44.exe 82 PID 936 wrote to memory of 2124 936 5f70bb21955777e10ca01ead27d16b44.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\5f70bb21955777e10ca01ead27d16b44.exe"C:\Users\Admin\AppData\Local\Temp\5f70bb21955777e10ca01ead27d16b44.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3896 -
C:\Users\Admin\AppData\Local\Temp\5f70bb21955777e10ca01ead27d16b44.exe"C:\Users\Admin\AppData\Local\Temp\5f70bb21955777e10ca01ead27d16b44.exe"2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:936 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\PASSWORDSNET4.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\PASSWORDSNET4.exe3⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1904
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CREDITCARDNET4.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CREDITCARDNET4.exe3⤵
- Executes dropped EXE
PID:2124
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