Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
11/07/2026, 15:51
General
- Target 6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1.exe
- Size 3.0MB
- Sample260711-taqf2set7j
- SHA256 6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1
Malware Config
Extracted
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quasar
-
1.4.6
-
Office04
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185.139.214.222:4782
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b175ac05-4ef5-49e8-af7e-c78388c8ddcc
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encryption_key
4C67471BE88DD63DB2466621FE9E2A2D848F5B79
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install_name
svchost.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
3000
-
startup_key
Svchost Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Executes dropped EXE 2 IoCs
- Drops file in System32 directory 5 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- 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\6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1.exe"C:\Users\Admin\AppData\Local\Temp\6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1.exe"1⤵
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /delete /tn "false" /f2⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Svchost Startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\svchost.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\SubDir\svchost.exe"C:\Windows\system32\SubDir\svchost.exe"2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /delete /tn "false" /f3⤵
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-
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C:\Windows\system32\SubDir\svchost.exeC:\Windows\system32\SubDir\svchost.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exe"schtasks" /delete /tn "false" /f2⤵
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C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Svchost Startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\svchost.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
svchost.exe
memory/1504-10-0x000000001D980000-0x000000001D9D0000-memory.dmp
memory/1504-11-0x000000001DA90000-0x000000001DB42000-memory.dmp
memory/1504-14-0x000000001DA00000-0x000000001DA12000-memory.dmp
memory/1504-15-0x000000001DB50000-0x000000001DB8C000-memory.dmp
memory/1504-17-0x000000001E440000-0x000000001E542000-memory.dmp
memory/3576-0-0x0000000000C40000-0x0000000000F3E000-memory.dmp
memory/3576-1-0x000000001BB10000-0x000000001BB20000-memory.dmp
memory/3576-2-0x000000001BF20000-0x000000001C3E4000-memory.dmp