Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
05/08/2026, 04:38
General
- Target catlavan-recode.exe
- Size 1.2MB
- Sample260805-e9sywsybpg
- SHA256 60ecb7c972bb35a8a2769e43f493e277d54076b0ec5b41662950118e1c62f216
Malware Config
Extracted
-
quasar
-
encryption_key
33A7029011B6BD4B067B8907EB238F25EFF233BF
-
key_salt
5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382
-
reconnect_delay
3000
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Drops file in System32 directory 5 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 3 IoCs
- Suspicious use of WriteProcessMemory 3 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\catlavan-recode.exe"C:\Users\Admin\AppData\Local\Temp\catlavan-recode.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "SystemHelper" /sc ONLOGON /tr "C:\Windows\system32\SubDir\SystemHelper.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\SubDir\SystemHelper.exe"C:\Windows\system32\SubDir\SystemHelper.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "SystemHelper" /sc ONLOGON /tr "C:\Windows\system32\SubDir\SystemHelper.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Windows\system32\SubDir\SystemHelper.exeC:\Windows\system32\SubDir\SystemHelper.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
SystemHelper.exe
memory/3336-27-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-24-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-26-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-29-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-31-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-30-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-33-0x0000027063E00000-0x0000027063E3E000-memory.dmp
memory/3336-28-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-25-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-18-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-20-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-23-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-22-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-21-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-34-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/3336-19-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-8-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-17-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-16-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-14-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-13-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-12-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-11-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-10-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-9-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-0-0x00007FFCF55BF000-0x00007FFCF55C0000-memory.dmp
memory/4980-7-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-6-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-5-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-4-0x000002550B960000-0x000002550B994000-memory.dmp
memory/4980-3-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-2-0x00007FFCF5430000-0x00007FFCF5DD4000-memory.dmp
memory/4980-1-0x000002550B390000-0x000002550B4C6000-memory.dmp