Analysis
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max time kernel
120s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
09/11/2024, 00:01
Static task
static1
Behavioral task
behavioral1
Sample
1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe
Resource
win10v2004-20241007-en
General
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Target
1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe
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Size
211KB
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MD5
cba407a414f71048711865525583a320
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SHA1
6722724f204ef6bd9a3937e04c4b2ab8a644d8b1
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SHA256
1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dcc
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SHA512
1f00e7a3a33bdafb71dc0d74f9b646b555b6b733da47f5978061118c48f382023d0b9014217651bca07d7fa2112f038a1c16960c60f3283a3b292cf347a62fcc
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SSDEEP
3072:EPUHpiKT2t2UHIu05W7SAFJJOUD9cckiKop97f3r8n9t9YgntnH:9rTfUHeeSKOS9ccFKk3Y9t9YyH
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2312 Isass.exe -
Loads dropped DLL 2 IoCs
pid Process 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe" 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe" 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Isass.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe 2312 Isass.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3056 wrote to memory of 2312 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe 30 PID 3056 wrote to memory of 2312 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe 30 PID 3056 wrote to memory of 2312 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe 30 PID 3056 wrote to memory of 2312 3056 1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe"C:\Users\Admin\AppData\Local\Temp\1cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dccN.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Users\Public\Microsoft Build\Isass.exe"C:\Users\Public\Microsoft Build\Isass.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2312
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
211KB
MD5cba407a414f71048711865525583a320
SHA16722724f204ef6bd9a3937e04c4b2ab8a644d8b1
SHA2561cb4224c524447bf801b2b19e23f48f9ad083bbbc9f89c24d418e213f99b6dcc
SHA5121f00e7a3a33bdafb71dc0d74f9b646b555b6b733da47f5978061118c48f382023d0b9014217651bca07d7fa2112f038a1c16960c60f3283a3b292cf347a62fcc