Analysis
- max time kernel
118s - max time network
126s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
31/03/2024, 19:48
General
- Target 5c843791f7a693c418b162ccd993b997_JaffaCakes118.exe
- Size 6.0MB
- Sample240331-yh272aba43
- SHA256 ccd4b2ba4cea6ac4ea648e58cbe9ca9cd48f512a1df7414cad6c9ff602c6c688
Malware Config
Extracted
-
quasar
-
1.4.0
-
Chrome
-
live.nodenet.ml:8863
-
754ce6d6-f75b-4c6f-964c-3996e749369e
-
encryption_key
8F8DE0B9E0A9CA156684061043456EC2CF7D0A6D
-
install_name
chrome.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
System
-
subdirectory
chrome
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 3 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 3 IoCs
- Themida packer 5 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 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\5c843791f7a693c418b162ccd993b997_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\5c843791f7a693c418b162ccd993b997_JaffaCakes118.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\chrome.exe"C:\Users\Admin\AppData\Roaming\chrome.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 "System" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\chrome.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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-
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C:\Users\Admin\AppData\Local\Temp\S^X.exe"C:\Users\Admin\AppData\Local\Temp\S^X.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
AgileDotNetRT.dll
S^X.exe
chrome.exe
memory/2856-10-0x0000000072EA0000-0x00000000734A8000-memory.dmp
memory/2856-28-0x0000000074C00000-0x00000000751AB000-memory.dmp
memory/2856-0-0x0000000074C00000-0x00000000751AB000-memory.dmp
memory/2856-11-0x0000000077BB0000-0x0000000077BB2000-memory.dmp
memory/2856-12-0x0000000072EA0000-0x00000000734A8000-memory.dmp
memory/2856-13-0x00000000752A0000-0x00000000752FB000-memory.dmp
memory/2856-2-0x00000000006E0000-0x0000000000720000-memory.dmp
memory/2856-1-0x0000000074C00000-0x00000000751AB000-memory.dmp
memory/2856-27-0x0000000072EA0000-0x00000000734A8000-memory.dmp
memory/2856-9-0x0000000072EA0000-0x00000000734A8000-memory.dmp
memory/2952-30-0x0000000000300000-0x0000000000384000-memory.dmp
memory/2952-31-0x000007FEF5FF0000-0x000007FEF69DC000-memory.dmp
memory/2952-33-0x000000001AF70000-0x000000001AFF0000-memory.dmp
memory/2952-37-0x000007FEF5FF0000-0x000007FEF69DC000-memory.dmp
memory/2952-38-0x000000001AF70000-0x000000001AFF0000-memory.dmp
memory/2992-29-0x00000000003F0000-0x00000000004BC000-memory.dmp
memory/2992-32-0x00000000725E0000-0x0000000072CCE000-memory.dmp
memory/2992-35-0x0000000004BB0000-0x0000000004BF0000-memory.dmp
memory/2992-36-0x00000000725E0000-0x0000000072CCE000-memory.dmp