Analysis
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max time kernel
15s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15/01/2025, 22:07
Static task
static1
Behavioral task
behavioral1
Sample
4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe
Resource
win10v2004-20241007-en
General
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Target
4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe
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Size
899KB
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MD5
054f61a32bdc6c4e74da19e22ef7f130
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SHA1
df2c48ed2f6af92f7f621dbf51829441545c0ea4
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SHA256
4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326
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SHA512
76996ab47b18d4e5a2c6820af190a737e5f7a7baee9533a2535a32f8bb6047cd8621fedd947767f10ba04ef8a27416b92f2a13b0295fdb7c6a1b3ccfa304e3a7
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SSDEEP
24576:G0jJ5gLpwkRKMsj4SR3C6Z4b2s9/lIbzNICPHMHr:G0j0LL87x3CE4Ks9daDPHe
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1584 CTS.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\CTS.exe 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe File created C:\Windows\CTS.exe CTS.exe -
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 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2260 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe Token: SeDebugPrivilege 1584 CTS.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2260 wrote to memory of 1584 2260 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 30 PID 2260 wrote to memory of 1584 2260 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 30 PID 2260 wrote to memory of 1584 2260 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 30 PID 2260 wrote to memory of 1584 2260 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe"C:\Users\Admin\AppData\Local\Temp\4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2260 -
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1584
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
899KB
MD541ac41fb16de9ab162ba01bb296a90e7
SHA1b8595b6f4da1db5eeecb0c049308c0f4927a6ec7
SHA2566d00afb77cba2df26321b4ac0dd7df5e3352f14694f6175be49f940765c3d3d7
SHA512b6d14aeacb14133bd22bc92064b7ae91f0780e46f11055e8d61a606d682956f8555b567c29a75731085886ac19fdf873290c7215573be46b2825bb1ad2b905b2
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Filesize
86KB
MD50f736d30fbdaebed364c4cd9f084e500
SHA1d7e96b736463af4b3edacd5cc5525cb70c593334
SHA256431b7f30b7f8d520f69066b03b8dccbb35a6cb40a53c5e2320c6b5acf96b2e34
SHA512570a2f76d653414fedc12ed486f2bf0333dc860f52d70faa895d6b9951ac185317637d7b076e05c932f4c536259e19a952a716e9516d506d2a19de73c50f2566