Analysis
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max time kernel
13s -
max time network
62s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
21-11-2024 09:40
Static task
static1
Behavioral task
behavioral1
Sample
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
Resource
win10v2004-20241007-en
General
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Target
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe
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Size
128KB
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MD5
01b5a58b9dc6c12b03120e17834dd331
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SHA1
5392178b429292211cfa7b6f230ef78353156059
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SHA256
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39
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SHA512
ff939c5736344376c8cbcb4ae1d99038c1095bf4fefce7847cdf06886535549976c94b625c7a58fecc70ee3d49640c9d96809a83a58bf75974145ecdcfa8a89a
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SSDEEP
3072:gfoYE/k5MuqR2q3Yjv5SN/JHFo8gwpqGggcbFgq3Yjv5SN/JHFoc:gf9nW2IHN/JH+7IIbFgIHN/JH+c
Malware Config
Signatures
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Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Executes dropped EXE 1 IoCs
Processes:
outlook.exepid Process 1244 outlook.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 1 IoCs
Processes:
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\sys32.exe" b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe -
Drops file in Windows directory 5 IoCs
Processes:
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exeoutlook.exedescription ioc Process File opened for modification C:\Windows\outlook.exe b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe File opened for modification C:\Windows\sys32.exe b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe File opened for modification C:\Windows\outlook.cfg outlook.exe File created C:\Windows\sys32.exe b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe File created C:\Windows\outlook.exe b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.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.
Processes:
outlook.exeb3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language outlook.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exedescription pid Process procid_target PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29 PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29 PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29 PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29 PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29 PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29 PID 432 wrote to memory of 1244 432 b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe"C:\Users\Admin\AppData\Local\Temp\b3a914f443419830906a4b83dce5395eb13cf16295b005dc2260412a3dcb7c39.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Windows\outlook.exeC:\Windows\outlook.exe2⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1244
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
49KB
MD50e9379e357aba95f8b9883af9b67675e
SHA1280a174a414e5b8588f42b6328af2c8c8ff4394f
SHA25696b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28
SHA5126cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784