Analysis
- max time kernel
149s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
10/09/2026, 13:02
General
- Target fly88h.exe
- Size 3.1MB
- Sample260910-p97gdstfje
- SHA256 40737f111bd11e5abd1055195ec0d9e32d63a07a15d888c8d93b928ee098f717
Malware Config
Extracted
-
quasar
-
1.4.1
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Office04
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fly88h.com:443
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www.fly88h.com:443
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fly88h.com:80
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www.fly88h.com:80
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8f592600-b130-4738-a7de-7ce3d0eb95dc
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encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
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reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 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 use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 2 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
-
C:\Users\Admin\AppData\Local\Temp\fly88h.exe"C:\Users\Admin\AppData\Local\Temp\fly88h.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/3428-14-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-8-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-3-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-4-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-5-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-6-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-7-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-1-0x0000000000AB0000-0x0000000000DD4000-memory.dmp
memory/3428-9-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-10-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-11-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-12-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-13-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-0-0x00007FFA8500F000-0x00007FFA85010000-memory.dmp
memory/3428-2-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/3428-17-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-20-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-16-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-19-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-18-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-22-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-21-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-23-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-24-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-26-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-25-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/4820-30-0x00007FFA84E80000-0x00007FFA85824000-memory.dmp
memory/5188-29-0x000000001D360000-0x000000001D412000-memory.dmp
memory/5188-28-0x000000001D250000-0x000000001D2A0000-memory.dmp