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Analysis
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max time kernel
13s -
max time network
13s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
05/01/2025, 13:14
Behavioral task
behavioral1
Sample
ChromeUpdate.exe
Resource
win7-20241023-en
General
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Target
ChromeUpdate.exe
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Size
119KB
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MD5
eedc846c4cf322bbcf849a4af793ced5
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SHA1
77fa1a6feb62bd77d30be181696802e13524da8d
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SHA256
b3ccfc4ddc7f6abf0fa7606be8495acd20c23f85ab23c2fa8bfe43e84befa126
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SHA512
6eb5963fa6d4cca6a2de25850cf47064d8ba523223a55048600fce8cadd120487507af50b0fd39c14b20bed3b976bb9510b5699efc7533e540350101c087ba2c
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SSDEEP
3072:Y/aazycnfYOgWPyZ9dOpbZqHVQWqzCrAZuuQD:HIsWqndOpb4K
Malware Config
Extracted
toxiceye
https://api.telegram.org/bot7742822790:AAHkizf3bilCkIqp8NNVcbWObKSVKo8Xifo/sendMessage?chat_id=7053620590
Signatures
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Toxiceye family
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Deletes itself 1 IoCs
pid Process 2936 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2636 Update.exe -
Enumerates processes with tasklist 1 TTPs 1 IoCs
pid Process 2468 tasklist.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Delays execution with timeout.exe 1 IoCs
pid Process 2856 timeout.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2228 schtasks.exe 2032 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2636 Update.exe 2636 Update.exe 2636 Update.exe 2636 Update.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 308 ChromeUpdate.exe Token: SeDebugPrivilege 2468 tasklist.exe Token: SeDebugPrivilege 2636 Update.exe Token: SeDebugPrivilege 2636 Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2636 Update.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 308 wrote to memory of 2228 308 ChromeUpdate.exe 32 PID 308 wrote to memory of 2228 308 ChromeUpdate.exe 32 PID 308 wrote to memory of 2228 308 ChromeUpdate.exe 32 PID 308 wrote to memory of 2936 308 ChromeUpdate.exe 34 PID 308 wrote to memory of 2936 308 ChromeUpdate.exe 34 PID 308 wrote to memory of 2936 308 ChromeUpdate.exe 34 PID 2936 wrote to memory of 2468 2936 cmd.exe 36 PID 2936 wrote to memory of 2468 2936 cmd.exe 36 PID 2936 wrote to memory of 2468 2936 cmd.exe 36 PID 2936 wrote to memory of 2800 2936 cmd.exe 37 PID 2936 wrote to memory of 2800 2936 cmd.exe 37 PID 2936 wrote to memory of 2800 2936 cmd.exe 37 PID 2936 wrote to memory of 2856 2936 cmd.exe 38 PID 2936 wrote to memory of 2856 2936 cmd.exe 38 PID 2936 wrote to memory of 2856 2936 cmd.exe 38 PID 2936 wrote to memory of 2636 2936 cmd.exe 39 PID 2936 wrote to memory of 2636 2936 cmd.exe 39 PID 2936 wrote to memory of 2636 2936 cmd.exe 39 PID 2636 wrote to memory of 2032 2636 Update.exe 41 PID 2636 wrote to memory of 2032 2636 Update.exe 41 PID 2636 wrote to memory of 2032 2636 Update.exe 41 PID 2636 wrote to memory of 1796 2636 Update.exe 43 PID 2636 wrote to memory of 1796 2636 Update.exe 43 PID 2636 wrote to memory of 1796 2636 Update.exe 43 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\ChromeUpdate.exe"C:\Users\Admin\AppData\Local\Temp\ChromeUpdate.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:308 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Update\Update.exe"2⤵
- Scheduled Task/Job: Scheduled Task
PID:2228
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp7899.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp7899.tmp.bat2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2936 -
C:\Windows\system32\tasklist.exeTasklist /fi "PID eq 308"3⤵
- Enumerates processes with tasklist
- Suspicious use of AdjustPrivilegeToken
PID:2468
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C:\Windows\system32\find.exefind ":"3⤵PID:2800
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C:\Windows\system32\timeout.exeTimeout /T 1 /Nobreak3⤵
- Delays execution with timeout.exe
PID:2856
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C:\Users\Update\Update.exe"Update.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2636 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Update\Update.exe"4⤵
- Scheduled Task/Job: Scheduled Task
PID:2032
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2636 -s 16364⤵PID:1796
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
189B
MD5811dc4cf338cfce6c81922f2db108554
SHA1d5e60416b9b58afce084cbd11b862a80ca97cc19
SHA256817ead25ecbe502e2fdf47bd87c767391d24df003a950dec34d8b0eb3c3abbc2
SHA5129c08b37863d27d12cdb8a43160b9fbd024b0a47384d106e5c4f52cc6f8a730eb4b619abe1bf1bf8235e0464b2f6f715f6ea464dfeda7064eed9675890081398b
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Filesize
119KB
MD5eedc846c4cf322bbcf849a4af793ced5
SHA177fa1a6feb62bd77d30be181696802e13524da8d
SHA256b3ccfc4ddc7f6abf0fa7606be8495acd20c23f85ab23c2fa8bfe43e84befa126
SHA5126eb5963fa6d4cca6a2de25850cf47064d8ba523223a55048600fce8cadd120487507af50b0fd39c14b20bed3b976bb9510b5699efc7533e540350101c087ba2c