Analysis
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max time kernel
93s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 2128 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" 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.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 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 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2036 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe Token: SeDebugPrivilege 2128 CTS.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2036 wrote to memory of 2128 2036 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 83 PID 2036 wrote to memory of 2128 2036 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 83 PID 2036 wrote to memory of 2128 2036 4b3a49bb78745161a8e6a97e7ad6d4d3b5197a6adf9ed2696ef0b6774657a326N.exe 83
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:2036 -
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2128
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
410KB
MD5c6c3342d8abbd11d14204f7d14028537
SHA1d8c95355598e98a1ff235ec59d4ceefab7fc13c8
SHA2560830df684f861bfd84e05cb924c8cbfdee07cd2bad99f61268b940d044a44dad
SHA51297b921f112c9ac56b2062f6b46b9a6cac8882df81e7d86a301fe6463ef5383fd5728e3159c879c3fa5344c1923ead8f0f245767e40ed683d1197e62855fd1bcb
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Filesize
899KB
MD58529a40b2347d8405b4c024885cd10f3
SHA1c5aeaae984bcfe369831588eb96b06b00f42e8e3
SHA256b61451c335fc2e0bbdfbcdb1579c51bbea3dd36ae496da13020bf50fd2ec9ec9
SHA51202d7418eb3dfe527ebe1c0b98e14feb703bd503bd869724da031b38dbe14302ef4e2d650d03225e7f221f589d075b7a3437060a592b0f675883d39e8f863b59c
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Filesize
86KB
MD50f736d30fbdaebed364c4cd9f084e500
SHA1d7e96b736463af4b3edacd5cc5525cb70c593334
SHA256431b7f30b7f8d520f69066b03b8dccbb35a6cb40a53c5e2320c6b5acf96b2e34
SHA512570a2f76d653414fedc12ed486f2bf0333dc860f52d70faa895d6b9951ac185317637d7b076e05c932f4c536259e19a952a716e9516d506d2a19de73c50f2566