Analysis
- max time kernel
126s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
11/04/2024, 00:32
General
- Target 2024-04-11_7157bb4fd707d8feb0688e02de58e2f6_icedid_xrat.exe
- Size 4.7MB
- Sample240411-av26ssae21
- SHA256 f16b09c1b311892dbe11c466c2bf4393f2750e1365e9d3c59983e7b5c03a0734
Malware Config
Extracted
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quasar
-
1.4.1
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Office04
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mx5.deitie.asia:4495
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ebbf737a-dddd-43dd-9b0a-74831302455d
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encryption_key
F8516D89A1DFD78BD8FF575BBC3AE828B47FF0E1
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Detects Windows executables referencing non-Windows User-Agents 2 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
- Detects executables containing common artifacts observed in infostealers 2 IoCs
- Drops startup file 1 IoCs
- Executes dropped EXE 2 IoCs
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 8 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\2024-04-11_7157bb4fd707d8feb0688e02de58e2f6_icedid_xrat.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-11_7157bb4fd707d8feb0688e02de58e2f6_icedid_xrat.exe"1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\\sign.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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 /f3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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 /f4⤵
- Creates scheduled task(s)
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-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
sign.exe
memory/1168-4-0x0000000000190000-0x00000000004B4000-memory.dmp
memory/1168-5-0x00007FF9ACD70000-0x00007FF9AD831000-memory.dmp
memory/1168-6-0x0000000000C70000-0x0000000000C80000-memory.dmp
memory/1168-13-0x00007FF9ACD70000-0x00007FF9AD831000-memory.dmp
memory/3612-14-0x00007FF9ACD70000-0x00007FF9AD831000-memory.dmp
memory/3612-15-0x000000001B470000-0x000000001B480000-memory.dmp
memory/3612-16-0x000000001B3E0000-0x000000001B430000-memory.dmp
memory/3612-17-0x000000001BE80000-0x000000001BF32000-memory.dmp
memory/3612-18-0x00007FF9ACD70000-0x00007FF9AD831000-memory.dmp